SS9901-SP02090617300 Dallas Parkway
Suite 1010
TurnerCollle Braden Inc• Dallas, Texas
Tel: (972) 735 -300-300
0
Engineers • Planners • Project Managers Fax: (972) 735-3001
September 6, 2002 TC &B Project No. 052131124.0001.02000.Al23
Mr. Rick Odell
City of Coppell
255 Parkway Boulevard
Coppell, TX 75019 -4409
Re: Deforest and Sandy Lake Wastewater Lift Stations and Force Main Improvements
Force Main Line "C" Construction Submittals
Dear Mr. Odell:
This letter is to clarify the isolation valve requirements for the combination air and vacuum release
valves for the 30" ductile iron force main Line "C ". The isolation valves must be a gate valves as
shown in the detail on sheet 11 of 12 in the plans. For the Apco combination valve model 449, the
valve must be a 4" brass valve.
In summary, the isolation valve must be a 4" brass gate valve meeting City of Coppell
specifications and NCTCOG specifications.
Sincerely,
- 7;;4 5
Ted B. Sugg,
Project Manager
Established in 1946
Engineering Excellence for Over One -Half Century
AN AECOM COMPANY
CENTEX
CONSTRUCTION
COMPANY
LETTER OF TRANSMITTAL
Project Name: St. Joseph Village
Reference: 0024
Date: August 22, 2002
Rick Odell
The City of Coppell
P. O. Box 9478
Coppell, TX 75019
We are sending X Attached Under Separate Cover
Via _ the following items:
Shop Drawings _ Prints
Copy of Letter Change Order Request
Samples _ Specifications
V Drawinas
These are transmitted as checked below:
X FOR APPROVAL
Return of Submittal
For Your Use
- As Requested
Review & Comment
Approved
Approved as Noted
Return for Correction
Revise and Resubmit
Rejected
This submittal is due from
Copies To: Tumer Collie & Braden : Ted Sugg; i
Signed
Ryan
Asst. *oject Manager
0 -400
SEWAGE AIR VALVES
OPERATION AND MAINTENANCE
INSTRUCTIONS
SEWAGE
AIR RELEASE VALVE
WITH ATTACHMENTS
S -400WA
(1" THRU 3 - )
�l LJ
r
.i:
1. VENTING
MECHANISM
Boor
—STEM
FLOAT
1 - 3
ES:
�. ")
SZOWA
S-400C (1 "-3 ")
S- 40OC -1 (4 " -14 ")
SEWAGE
AIR & VACUUM VALVE
WITH ATTACHMENTS
S -401 WA & S -404WA
(1" THRU 3 ") (4" THRU 14")
VALVE AND PRIMER CORPORATION
1420 S. WRIGHT BLVD., SCHAUMBURG, ILLINOIS 601
APD O847/524-9000 6969
• FAX: 847/524 -9007
® WEBSITE: www.apcovalves.com v EMAIL: factoryeapcovalves.com
SEWAGE AIR VALVES
INSTALLATION
APCO SEWAGE AIR VALVES WITH ATTACHMENTS FOR BACKFLUSHING
SHOULD BE INSTALLED AS SHOWN ON ENGINEERS PLANS, OR APCO
BULLETIN 400.
THE AIR VALVE IS FITTED WITH SHUT OFF VALVES FOR ISOLATING THE
AIR VALVE FROM THE MAIN FOR INSPECTION AND BACKFLUSHING.
THE VALVE VAULT SHOULD HAVE ADEQUATE DRAINAGE AND BE SUFFI-
CIENTLY PROTECTED FROM POSSIBLE FREEZING CONDITIONS. WHERE
FREEZING CONDITIONS EXIST, THE AIR VALVE SHOULD BE INSULATED
OR (PARTICULARLY ON A BRIDGE CROSSING) WRAPPED WITH ELEC-
TRICAL HEAT TAPE. IT IS RECOMMENDED THE AIR VALVE DISCHARGE
PORTS BE ORDERED THREADED AND PIPED BY OTHERS TO THE DRAIN,
PARTICULARLY WHEN INSTALLED WITHIN A PUMPING STATION; TO PRE-
VENT THE DANGER TO OPERATING PERSONNEL OR FLOODING DUE TO
MALFUNCTION OR CLOGGING. BACKFLUSH ATTACHMENTS (OPTIONAL)
INCLUDE THREE (3) QUICK DISCONNECTS, ONE-(1) FIVE FOOT LENGTH
OF NEOPRENE HOSE WITH ADAPTORS AND THREE (3) SHUT OFF VALVES
FOR FLUSHING.
OPERATION
1. SEWAGE AIR RELEASE VALVE RELEASES SMALL QUANTITIES OF AIR
FROM THE FORCE MAIN AUTOMATICALLY AND CLOSES ON LIQUID
LEVEL RISE THIS VALVE IS DESIGNED TO OPERATE UNDER PRESSURE.
2. SEWAGE AIR & VACUUM VALVE RELEASES LARGE QUANTITIES OF AIR
WHEN INITIALLY FILLING THE LINE, AND WILL CLOSE AUTOMATIC-
ALLY WITH LIQUID LEVEL RISE. AS LONG AS THE LINE IS UNDER
PRESSURE, THE VALVE WILL NOT OPEN. UNDER VACUUM CONDI-
TIONS, THE DOUBLE FLOAT WILL DROP, ALLOWING AIR TO RE -ENTER
THE LINE. THIS PREVENTS POSSIBLE COLLAPSE OF THE PIPELINE,
ALLOWS THE LINE TO DRAIN, AND PREVENTS DAMAGE DUE TO
WATER COLUMN SEPARATION WITHIN LONG DOWNWARD SLOPES.
THE VALVE WILL CLOSE AGAIN ONLY WHEN THE LINE IS FILLED.
3. COMBINATION SEWAGE AIR VALVE PERFORMS BOTH OF ABOVE
FUNCTIONS.
MAINTENANCE
TO ARRIVE AT A REASONABLE SCHEDULE OF PREVENTIVE MAINTE-
NANCE, THE SEWAGE AIR VALVES SHOULD BE BACKFLUSHED THE FIRST
TIME SIX (6) MONTHS AFTER THE OPERATING DATE (NOT THE INSTAL-
LATION DATE). DURING THIS FIRST BACKFLUSHING, IT SHOULD BE
NOTED BY THE OPERATING ENGINEER THE SEVERITY OF WASTE THAT
IS FLUSHED OUT OF THE AIR VALVE BODY. IF CLEAN FLUSHING RESULTS
IN A FEW MINUTES TIME, THE NEXT PERIOD FOR BACKFLUSHING CAN
BE SET AT TWELVE (12) MONTHS. IF CLEAN FLUSHING IS DIFFICULT AND
EXCEEDS FIFTEEN (15) MINUTES, THEN THE NEXT BACKFLUSHING PERIOD
SHOULD BE SET AT THREE (3) MONTHS. A LOG SHOULD BE KEPT AND
THE VALVE TAGGED WITH DATE OF LATEST FLUSHING.
BACKFLUSHING SHOULD BE PERFORMED ON A ROUTINE BASIS AT
LEAST ONCE A YEAR. THE REASON FOR BACKFLUSHING IS TO INSURE
EFFICIENT OPERATION OF THE AIR VALVE, OTHERWISE GREASE AND
SCUM MAY BUILD UP INSIDE THE BODY AND IN TIME PREVENT THE AIR
VALVE FROM OPERATING.
DET.
DESCRIPTION
MATERIAL
I
eooV
CAST NON ASTM Arse ORE
2
COVER
CAST RON ASTN Al26 DIRE
2
COVER GASKET
LUIDE(NON- MIESTON
COVER SOLT
STm ASTN AeOT oRE
e
LEVERAGE PRAMS
MALI8E88 Sim ASTN ASSL CF-DN
8
SEATO N VNV)
STAINLESS STEEL AWN Ante Tale
T
NEEDLE
SINIA -N
e
NEEDLE LEVER
STAILESS STEEL ASTM ASSI CP-eM
Is
LEVER PIN
STANILM SIm ASTN AM T803
I I
RETAMeND RING
STAMESS STEEL PMS -TNO
12
CONNECTING LINK
STANLEM STEEL ASTM A27e T3I6
Is
BOAT LEVER
STANLE88 STEEL ASTM ASBI CP N
14
MOAT M
STA 88 STEEL A87141 A240 TSD4
IS
ISOLATION VALVE
sRASS (COMMERCIAL)
Is
I" NP.T. DRAIN VALVE
ows (COMMERCIAL)
to
cLosE NPPLE
STEEL (Commotcmu
1•
I" ".T. CLOSE NIPPLE
8Tm ( COMMECIAL
20
# NP.T. smEET ELEOV,
NALIEAIRE NON I7ASWA213
21
# NP.T. CLOSE NIPPLE
22
NP.T. 8MROPV VALVE
COMMERC21
*W�88
OIACI DISCONNECT NOSE ASWY.
CIAL
SS
FLOAT STEM
STm a02
• CDNCVrc. IDAr ravtrm
f ..
SEWAGE
AIR RELEASE VALVE
WITH ATTACHMENTS
S -400WA
(7' THRU 4'�
BACKFLUSHING PROCEDURES
Y N.. M RLl — - -
Y Cpi1Yl .IdS MTB,flO
SEWAGE AIR VALVE MAY BE BACKFLUSHED BY EITHER PROCEDURE 1 OR 2
PROCEDURE 1. BACKFLUSHING TO FORCE MAIN. IF A CLEAN WATER SERVICE IS AVAILABLE IT MUST BE AT LEAST 15 PSI HIGHER
THAN FORCE MAIN PRESSURE, TO PREVENT SEWAGE BACKFLOWING INTO POTABLE WATER LINE THE VALVE MAY BE FLUSHED
BACK INTO THE FORCE MAIN BY LEAVING ISOLATION VALVE A OPEN AND CONNECTING THE BACKFLUSH HOSE C TO VALVE D.
BACKFLUSH FOR 2-3 MINUTES, THEN CLOSE VALVE D AND TRANSFER THE HOSE TO QUICK DISCONNECT E (AIR RELEASE VALVES
ONLY), AND FLUSH FOR 1 MINUTE. AFTER BACKFLUSHING, CLOSE ISOLATION VALVE A. REMOVE BACKFLUSH HOSE C AND VENT
PRESSURE IN THE VALVE THRU VALVE D. THEN REMOVE COVER BOLTS (DET. #4) AND REMOVE TOP COVER (DET. #2) AND VISUALLY
INSPECT VALVE INTERIOR. IF GREASE DEPOSITS INTERFERE WITH VALVE OPERATION, SCRAPE OUT GREASE DEPOSITS. IF CARE IS
COVER TAKEN WHEN REMOVING THE COVER
BACKF USHING, REPLACE A RAND VACUUMSEATGD 6 AND RELEASE E NE DLE (DET. SEVERAL
7) AND REPLACE VALE CO ER (DET. DURING
AND SLOWLY OPEN ISOLATION VALVE A.
PROCEDURE 2. BACKFLUSHING TO ATMOSPHERIC OR VACUUM TANK. IF CLEAN WATER IS NOT AVAILABLE, WITH 15 PSI HIGHER
THAN SEWAGE FORCE MAIN PRESSURE, BACKFLUSH THRU DRAIN VALVE B INTO A ATMOSPHERIC COLLECTION TANK OR A VACUUM
COLLECTING TANK. FOLLOW THE SAME PROCEDURE AS DESCRIBED ABOVE, EXCEPT CLOSE VALVE A AND OPEN VALVE B. IF A
VACUUM COLLECTING TANK IS USED, A PIPE PLUG WITH A '/4" HOLE IN IT MAY BE INSERTED INTO THE OUTLET OF THE AIR AND
VACUUM VALVE TO LIMIT THE AMOUNT OF AIR DRAWN BACK INTO THE VACUUM TANK. INSPECT VALVE INTERIOR AS DESCRIBED IN
.. ^^=ni too t THFN CLOSE VALVE B AND OPEN VALVE A TO PUT THE SEWAGE AIR VALVE BACK INTO SERVICE
SEWAGE SEWAGE SEWAGE
AIR & VACUUM VALVE COMBINATION AIR VALVE AIR RELEASE
WITH ATTACHMENTS WITH ATTACHMENTS $ - 450WA
S -401 WA & S -404WA S -440WA r' THRU 4 ")
(1" THRU 31 (4" THRU 14 ") ( 1 THRU 6)
AM RELEASE VAUE(loom)
SEAT BETAS, rooAORKICE
SEWAGE
CUSTOM COMBINATION AIR VALVES
WITH ATTACHMENTS
17 2
ITD � 5-4000 (1" THRU 3 ")
m SEWAGE AIR RELEASE VALVE
BET
DESCRIPTION
MATERIAL
1
BODY
CAST IRON ASTM Al26 GR. B
2
COVER
CAST IRON ASTM Al26 DR. B
9
COVER GASKET
LEXIDE
4
5
COVER BOLT
LEVERAGE FRAME
STEEL ASTM A307 GR. B
STAINLESS STEEL ASTM A351 CF -SiA
e
SEAT 1 ORIFICE ONLY)
STAINLESS STEEL ASTM A276 T316
7
NEEDLE
BUNA -N
9
NEEDLE LEVER
STAINLESS STEEL A351 CF -BM
10
LEVER FIN
STAINLESS STEEL ASTM A581 T303
11
RETAINING RING
STAINLESS STEEL PN75 -7Mo
72
CONNECTING LINK
STAINLESS STEEL ASTM A276 T316
19
FLOAT LEVER
STAINLESS STEEL ASTM A351 CF -BM
11 1
FLOAT
13TAINLESS STEEL ASTM A240 T304
99 IFLOAT
STEM
STAINLESS STEEL ASTM A213 T303
14
,. TAlNG6 T1ar1 rNIM11 u.
SEWAGE AIR & VACUUM VALVE
0
DET
DESCRIPTION
MATERIAL
1
BODY
CAST IRON ASTM Al26 GR. B
2
COVER
CAST IRON ASTM Al26 GR. B
3
COVER GASKET
LEXIDE
4
COVER BOLT
STEEL ASTM A307 GR. S
6
SEAT
BUNA -N
1s
OFFER FLOAT
STAINLESS STEEL ASTM A240 T304
75
LOWER FLOAT;
STAINLESS STEEL ASl M A240 T304
Tr
NPT COVER PLUG.
STEEL 1 COMMERCIAL 1
21
BAFFLE
DELRIN ASTM D2133
99
FLOAT STEM
STAIXLE8a STEEL ASTM A582 T303
94
BAFFLE RET. SCREW
STAINLESS STEEL 16 -0
s0
BUMPER
BONA -N
47 IFLOAT
GUIDE
STAINLESS STEEL ASTM A592 T309
• COMDYE MOAT N'IGEMfm
RFWAr. AID DFI FA4F V ►1 VF
DET
DESCRIPTION
MATE RIAL
I
BODY
CAST IRON ASTM Al26 GRA
2
COVER
CAST MON ASTM Al26 MIA
3
COVER GASKET
LEXBIE (nanr4hNe4)
4
COVER BOLT
STEEL ASTM A307 OR. B
5
LEVERAGE FRAME
STAINLESS STEEL ASTM A351
S
BEAT MIle4 OM /
STAINLESS STEEL ASTM At76
7
NEEDLE
SUNA -N
0
NEEDLE LEPER
STAINLESS STEEL ASTM A351
10
1 LEVER PIN
STAMLEBS STEEL ASTM 9662
II
I RETAINING RING
STAINLESS STEEL PHIS -7110
12
CONNECTING LINK
STAINLESS STEEL ASTM A276
ti
FLOATLEVER
GTAIN1.E33 STEEL ASTM A351
14
FLOAT;
STAINLESS STEEL A3TM A240
39
FLOAT STEM
STAINLESS STEEL ASTM AVS
W 1aR1uNe •u4M rArrnrm
GFWARF AID A VAfY111Y VAI VF
4" INLET DETAIL
S- 400C -1
(4" THRU 14 ")
EGY1
/
2
DESCRIPTION
iBODY
COVER
MATERIAL
CAST MON ASTM A1 96EM9
CAST IRON ASTM AIM ME
3
COV GABK _
L EXIDE (nen +WE•1oE/ _
STEEL ASTM A307 OR. B
STEEL 10
4
5
6
COVER 900
GUIDE PLAT!
SEAT
14
UPPER MOAT
STAINLESS STEEL ASTM A240
15
LOWER MOAT f
STA"I!8TEF1 ASTM A240
STABLEAB STEEL 15-5
STAINLESS STEEL ASTM A24I
BTEEL 1010
16
26
20
BEAT "STAINING SCREW
BOTTOM DUDE BOSHINO
HOOD
20
HOOD BOLT
— SCREW
STEEL ASTM 9307 OR.
STARLESS STff IE-B '—
3A
GUIDE PLAE RET
30
FLOAT SET SCREW_
STAINLE STEEL /6 -S
40
BUMPER
BUTA -N
43
TOP GUIDE BUSHING
STAINLESS STE ASTM A682
LEXIDE (nMr15•MDI)
44
FLANGE GASKET
.�.... a1YTSen V N Ne
D171
DESCRIPTION
MATERIAL
1
ADDY
CAST MON ASTM Alf• BAR
2
MAC PIN
STAIN STEEL ASTM AM12
i
DISC SET SCREW
6TAMLESS STEEL 16-i
4
TOP PIVOT FIN
6TAI&EW STEEL ASTM AMP
S
DISC
BRONZE ASTM ABM
6
MSC BEAT
AUNA -N ISTEEL REMFORCE07
PIVOT FIN SEAL
SUVA -N
•
BOTTOM PIVOT PM
BTAIIEffi STEELASTYAW
•
LOCKING SCREW
STEEL ASTM A307 GR. 0
10
ADAPTER MATE SCREW
STEEL ASTM ASO7 60. 0
11
ADAPTER PLATE
STEEL ASTM A36
12
MAKE LEVER KEY
STEEL 1019
11
HAND l!vER
CART YIMI ASTM AN CL 30
t5
LOCK LEVER
CAST MON ASTM A. 0130
4E
RETAIMMO PLATE
STEEL ABTY 936
4!
RETAINING BUT
STEEL ASTM AE63
41
THREADED ROD I
ATEEL ASTM ANY DR.9
1
SEWAGE
CUSTOM COMBINATION AIR VALVES
WITH ATTACHMENTS s
'-- 2000
77, 77 velum
f Af/ /oe
��.:� #1F'1A71�°'7w �'�i.'i'�7'� '•I!F'7�IFiiw'
tia j ; t
. ,'.t ,rte � •� . . �;� a3�;jywx �, � ,cc q: -�..
,.�,
4is"x
a
4
Sewage Air Release Valve
SERIES 400 SARV
Sewage Combination Air`Valve
SERIES 440 SLAV
Sewage Air Vacuum Valve 5 s
SERIES 401 SAW
CONCaVEFLaar (Patented)
1420 S. WRIGHT BLVD. SCHAUMBURG, IL 601934599 w RA
A47 CIA onnn CAV.049 CIA nnn 0e 004 cQao
GENERATION II
APCO AIR VALVES FOR
SEWAGE PIPELINE SYSTEMS
EFFECTS OF AIR in a pressurized dosed - pipeline system
must be recognized. An air pocket will decrease the
cross - sectional area and increase frictional pressure
loss. The combined loss for two -phase flow (air & water)
is always greater than the pressure loss for each phase
flowing alone. Thus, air in a pipeline increases system
flow resistance and increases system head against
which pumps must operate.
AIR MAY 1911FUR A NNW =719N IN MANY /101r'S:
(1) Air in the pipeline when initially filled may not be
completely purged.
(2) Air may be drawn in at a pump inlet by entrainment
if the liquid level falls below the inlet elevation.
(3) Air in solution (about 2% by volume) will be
released at points in the pipeline where the pressure
is reduced, especially where the line elevation is
close to the hydraulic gradient
(4) Gas created from digested sewage.
(5) Air may be drawn in through packings, seals and
flanged joints.
(6) Air may enter by vortexing at the pump.
AIR IN PIPING tends to collect at high points in the
line when flow velocities are low. If the air pocket
formed is large, part of it will be removed when the
velocity increases. This partitioned air may or may not
go through the system. It all depends on velocity, pipe
size, and pipe down - slope. It may only move into the
sloping straight section and then return to the summit
when the velocity decreases.
While it is impossible to totally prevent accumulation of
air (or gases) within the piping system, the volume can
be greatly minimized by installing APCO Sewage Air
Release Valves.
When air is present in a hydraulic pipeline, flows are
erratic, unpredictable and have high head losses.
Sewage works require Air Release Valves on pipeline
high points.
SEWAGE COMBINATION AIR VALVE( "::
Series 440 SCAV _
• First in a
Single Body
No Spills
• No Spurts
• Shorter
CONCAVE R04,
PATENTED
Now, APCO brings you THE LATEST STATE OF THE ART Sewage
Air Valve design: a Single Body, Double Orifice "Sewage Combination
Air Valve"
GENERATION II...a new generation of Air Valve Design.
Field tested under actual operating conditions. Incorporating all
features that have made the 400 Sewage Air Release Valves and 401
Sewage Air/Vacuum Valves the world's finest... Now in a Single
Body -plus a New Concave Float' - to give even greater performance
and reliability.
You no longer need to DIG DEEPER TRENCHES OR BUILD
DEEPER VAULTS BECAUSE THE 440 SERIES IS AT LEAST 30%
SHORTER THAN OTHER MODELSI
Valves that won't spill or spurt before shutting off. No more messy
waste flooded valve vaults to pump out ... or Pump Station floors to
mop up ... it shuts off drop tight
Take a serious look at GENERATION It - APCO Sewage Valves.
Manufactured to our industry's highest standards providing highest
efficiency and reliability of any sewage air valve available in the
market today.
Series 440 SCAV
MODEL
SIZ
INLET
OUTLET
EIGHT
DIA.
VALVE
PLAINIGmHawe"n
443
1"
2 "NPT
1"NPT
19%
24%
9%
87
95
445'
:_27
``271SIPT
20NPT
20%
27 .
9X
93
` 100"
447
3"
3 "N PT
3 "NPT
23%
29%
11
147
157
449
4"
4 "NPT
4 "NPT
23%
30
11
150
175
456
6"
ri:5le.
FLANGE
6"
35
39
13%
242
297
All APCO Sewage Vahres are furnished for 150 psi.
Higher pressures available. Specify If operating
pressure is below 20 psi for a lower durometer seet
SEWAGE COMBINATION AIR VALVE (SINGLE BODY)
... with two independent orifices!
series "o SCAV
• LARGE ORIFICE URGE ORIFICE
ORIFIC
For air out and in
(Air/Vacuum Valve function)
• SMALL ORIFICE TIBODY
For air release
(Under pressure function) GLE
• CONCAVE FLOAT*
TWO MAJOR COMPLAINTS NOW REMEDIED
WITH APCO'S INTRODUCTION OF THE CONCAVE FLOAT'1
1. SPILLAGE
People easily tolerate and are reasonable about water spillage from valves
but sewage...that "nasty stuff" is cause for some Engineers and Users alike
to avoid use of Sewage Air Valves, regardless of need to a system.
During the past 30 years, the single most highly objectional complaint about
the Sewage Air Valve is, "it spills" or "it spurts sewage "I
The CONCAVE FLOAT' eliminates this complaint because of the unique
Impact Zone extremely sensitive to sewage media entering the Sewage Air
Valve. The impact zone causes instantaneous and upward movement of the
float to shut -off the discharge orifice as soon as media contacts the float
Now, no spilling or spurting occurs even with low pressure (below 20 ps).
2. HEIGHT
The second most objectional complaint has been height SARV's of
standard design have been too tall, requiring deeper pipeline trenches and
bigger valve vaults. These are costly requirements.
Now, the CONCAVE FLOAT" with an impact zone allows fast action closure to
create a greater air trap inside the Sewage Air Valve body than possible with
the hemispherical style float This new design is also 30% shorter in height
BACKFLUSHING
ATTACHMENTS
OPTIONAL
OPERATING
SMALL
VENTING
PRESSURE
ORIFICE
GVMCITY
PSI
DIAMETER
CFFAM
0 -150
,0," Doti
SPECIFY APCO WITH CONFIDENCE - SEWAGE COMBINATION AIR VALVE SERIES 440 SAVV
Sewage Combination Air Valve (SINGLE BODY, DOUBLE ORIFICE) to allow large volumes of air to escape or enter through the larger diameter
orifice when filling or draining a pipeline.
When the pipeline Is filled and pressurized the large air /vacuum orifice shall stay closed, but the smaller diameter air release orifice shall remain
operative and open to allow small pockets of air accumulation to escape automatically and independently of the large orifice.
The large air /vacuum orifice shall shut off when the free floating -center guided plug is raised into the orifice by the lifting force of the CONCAVE -
bottom FLOAT'. The large orifice shut -off shall be "WITHOUT SPILLING'.
The Buna -N seat must be fastened to the valve cover, without distortion, for drop -tight shut -off.
The overall height & width shall not exceed the dimensions shown on this table.
Optional - Inlet and blow off valves, quick disconnect couplings and minimum 5' hose for flushing. (Engineer to specify).
Materials of construction shall be certified the following A.S.T.M. specifications:
Body & cover Cast Iron ASTM Al26 GR.B
Float" CONCAVE PATENTED Stainless Steel ASTM A240 T304
Stem, Stainless Steel Series T300
Needle & Seat Buna -N Nhrile Rubber
Plug (1 "- 2 "- 3 " -4 ") Brass ASTM B124
(6" size) Stainless Steel ASTM A240 T304
Leverage Frame (1 " -2 ") Delrin or Cast Iron (3 "- 4 " -6 ") ASTM D1233 or ASTM Al26 GR.B
Exterior Paint Universal Metal Primer FDA Approved for Potable Water
HIGHER OPERATING PRESSURES AVAILABLE W\E
INLET
VALVE
BACKFLUSHING
ATTACHMENTS
OPTIONAL
401 and larger Model APCO Sewage AirNacuum Valves
are specifically designed for operation on Sewage and
Waste Media.
AirNacuum Valves are needed to vent large volumes of air
when the sewage line is filled and allow air to re -enter
when draining, to prevent vacuum or column separation
occurring. Sewage AirNacuum Valves utilize two floats,
each connected to a common stem which is guided
through a bushing.
The upper float shuts off instantaneously against the seat,
due to the impact zone and lifting force of the much larger
CONCAVE BOTTOM FLOAT', as sewage media enters
the valve body.
Once closed, and pressurized, the AirNacuum valve will
not open to release air. It will open under negative pres-
sure allowing air to re -enter and prevent vacuum from
forming in the line.
Series 401 SAW
4" and larger flanged outlets available.
SPECIFY APCO WITH CONFIDENCE - SEWAGE AIR/VACUUM VALVE SERIES 401 SAVV
Sewage Air/Vacuum Valves shall allow unrestricted venting or re -entry of air through it during filling or draining of the force main to prevent
vacuum. The Sewage Air/Vacuum Valve shall incorporate (2) stainless steel floats directly connected by a stainless steel stem, to maintain an air
gap between the bottom CONCAVE FLOAT and top shut -off float The air gap shall retard waste solids from the fouling or clogging the top shut-
off float The internal baffle shall be fitted with a guide bushings and act to protect the shut -off float from direct air flow. The baffle shall retain
the Buna -N seat in place, without distortion for tight shut -off.
All internals shall be easily removed thru the top cover without removing the main valve from the line. The complete valve shall withstand 500 psi
test OPTIONAL - Inlet and blow off valves, quick disconnect couplings and minimum 5' hose for flushing. (Engineer to specify).
The valve inlet shall be (engineer to specify) and the outlet (engineer to specify).
The valve manufacturer shall furnish professionally printed installation and maintenance instruction manuals with each valve.
Materials of construction shall be certified the following A.S.T.M, specifications:
Body, cover & baffle Cast Iron ASTM Al26 GR.B
Upper Float Stainless Steel ASTM A240
Lower Float' CONCAVE PATENTED Stainless Steel ASTM A240 T304
Stem, Guide Bushing Stainless Steel Series T300
Seat Buna -N Nitrile Rubber
Exterior Paint Universal Metal Primer FDA Approved for Potable Water
SEWAGE AIRNACUUM VALVE
Series 401 SAW
LE II PF ' tu
MT
�i.- .41,ai lt6n�`N�]ti.a�:
h.�.
w��Z.Wla��.h\
J..IFL4':..a�'bdb
V... rv1
Q� .N... e�b.;l
v
1
' ..0
x,7„'3
o
• �,,. dP. �. �: �. �..:
�:. t.�,.5'>E+
>F,'¢5��. ,�f:.
e. �b.,y+K�
' f., G+ i.
".�
�� '_�
I� Ya�'��'y,
4" and larger flanged outlets available.
SPECIFY APCO WITH CONFIDENCE - SEWAGE AIR/VACUUM VALVE SERIES 401 SAVV
Sewage Air/Vacuum Valves shall allow unrestricted venting or re -entry of air through it during filling or draining of the force main to prevent
vacuum. The Sewage Air/Vacuum Valve shall incorporate (2) stainless steel floats directly connected by a stainless steel stem, to maintain an air
gap between the bottom CONCAVE FLOAT and top shut -off float The air gap shall retard waste solids from the fouling or clogging the top shut-
off float The internal baffle shall be fitted with a guide bushings and act to protect the shut -off float from direct air flow. The baffle shall retain
the Buna -N seat in place, without distortion for tight shut -off.
All internals shall be easily removed thru the top cover without removing the main valve from the line. The complete valve shall withstand 500 psi
test OPTIONAL - Inlet and blow off valves, quick disconnect couplings and minimum 5' hose for flushing. (Engineer to specify).
The valve inlet shall be (engineer to specify) and the outlet (engineer to specify).
The valve manufacturer shall furnish professionally printed installation and maintenance instruction manuals with each valve.
Materials of construction shall be certified the following A.S.T.M, specifications:
Body, cover & baffle Cast Iron ASTM Al26 GR.B
Upper Float Stainless Steel ASTM A240
Lower Float' CONCAVE PATENTED Stainless Steel ASTM A240 T304
Stem, Guide Bushing Stainless Steel Series T300
Seat Buna -N Nitrile Rubber
Exterior Paint Universal Metal Primer FDA Approved for Potable Water
SEWAGE AIRNACUUM VALVE
Series 401 SAW
ATING
ORIFICE
VENTING
SURE
DIAMETER
N o.
A
NJ.
IN
CFFAM
so
6/18
55
150
1SOV4DARD
- 90 > -
900
5/32
25
CONCH'
PATI
SERIES 400(
VALVE
MODE
125 LB. CLASS
250 LB. CLASS
SIZE
N o.
A
B
C
WTI
A
1
C
q°
6'
4060
3911
1 29
1 12
a
1 x
I 265
37%
1 29
12
12
x
6' '
,.106C<,
4b
,ae
j4
9
<& ;;
11'
199'i
1Za
to'
1100
45
ss
12
12
1
1 eeo
1 46%
1 35
12
16
1x
F
ass.
s2
r `B25
5"
40
k
2
.BYO
r)"u:
tX;
14'
1140
67x
41
-00
12
IN
I 1095
sex
1 44
'la
20
19
PERFORMANCE GRAPH FOR A/R /VACUUM VALVE
AIR INFLOW /OUTFLOW THRU VALVE IN STANDARD CUBIC FEET OF FREE AIR PER SECOND, (SCFS)
TEST CONDUCrEO BY: PHI W P PETROLEUM COMMNY ENGINEERING DEPARTMENT - TEST DIVISION
EDMOND PLANT FEE. 2. 1961 SOUTHERN RESEARCH INSTmITE BIRMINGHAM, ALABAMA MAY 9, less g
CURVES SHOWN ARE ACTUAL FLOW CAPACITIES AT 14.7 PSI BAROMETRIC PRESSURE AND Al
70'F TEMPERATURE BASE ON ACTUAL TEST.
EM1RE W L L CAPACITIES ACROSS THE ORIFICE, BUT FLOW E.
IN THE TEST SET -UP, AIR APPROACH VELOCITY IS NEGLIGIBLE THEREFORE, ACTUAL FLOW
CAPACITY EXCEEDS THE VALUES SHOWN ON THE CHART.
02 03 0.4 0.6 091 2 3 4 567810 20 304050 100 200 300 500
1L1 ,
2
i �rw
9 FOR ACCURATE SIZE SELECTION
4 � USE APCO NR VALVE COMPUTER
5 SOFTWARE APSUDE AVAILABLE mi d
�-
UPON REQUEST
6
14'12" 10" 8" 6" 4" 3" 2"
SPECIFY APCO WITH CONFIDENCE - CUSTOM COMBINATION SEWAGE AIR VALVE SERIES 400C CCSAV
Custom Combination Sewage Air Vale shall be dual function; venting large volumes of air through the large orifice and small pockets of air through the small orifice before shutting
off. Thereafter, while pressurized, pockets of air collecting, will be vented through the small orifice automatically. Should vacuum develop In the force main, both orifices shall be open,
permitting large volumes of air to re- enter, to break the vacuum.
The Custom Combination Sewage Air Valve shall consist of an independent large orifice Air/Vacuum Valve with an independent small orifice Air Release Valve aide connected. The
small orifice air valve shall be separated from the large odflce by a 2" gate Valve. The large orifice air Valve shall incorporate one upper float and one lower CONCAVE FLOAT; there-
by maintaining an air gap between the CONCAVE' bottom goat and upper shut -of float
The small orifice air valve shall have an internal compound lever mechanism including a long float stem with a stainless steel ficat threaded on. 11' away from the mechanism; there-
by maintaining an air gap between the float and the mechanism. The air gaps shall retard waste solids from dogging the upper shut -off float of the large orifice and the lever mecha-
nism of the small orifice valve.
The Air/Vacuum Vale inlet shall be flanged 6" through 14'. The outlet shall be plain with hood or flanged (Engineer to specify).
The aide connected Air Release Valve shall have a 2" NPT inlet and 9' NPT outlet The small orifice shall be X" diameter for operating (opening) pressure up to 150 psi and venting
capacity of 90 CFFAM.
Custom Combination Sewage Air Valve shall be fitted with (2) inlet Isolation Valves: 2" all Bronze gate Valve to isolate the Air Release Valve from the Air/Vacuum Valve. 0) 6" through
14' APCO Butterfly Valve to isolate the AirNacuum Valve from the force main. (2) blow off valves, (2) flush valves and minimum of 5 rubber hose with quick disconnects for back-
flushing. The manufacturer shall certify Venting capacity and provide maintenance manuals with each valve.
Materials of construction shall be certified to the following AS.T.M. specifications
Body. cover Cost iron ASTM Al26 GR.B Float Stem Stainless Steel Series Two "
Internal linkage Stainless Steel Series T300 Needle & seat Buns -N Nitrile Rubber
Float' CONCAVE PATENTED Stainless Steel ASTM A240 T304 Exterior paint Universal Metal Primer FDA Approved for
Potable Water Contact
Valve to be APCO Series 400C Custom Combination Sewage Air Valve with attachments, as manufactured by Valve & Primer Corporation. Schaumburg, IL 60193-4599
TYPICAL PIT INSTALLATION DETAIL FOR SEWAGE AIR VALVE a SEAT DETAIL
a
p
,
SEWAGE AIR RELEASE VALVE
Series 400 & 450 SARV
400 and 450 APCO SEWAGE AIR RELEASE VALVES are
specially designed for use with Sewage and Waste media.
The CONCAVE FLOAT' Stem and Body keep the valve
Venting Mechanism as free from contact with the sewage
as possible. The float hangs freely in the center of the valve
body and responds instantaneously to the fall and rise of
the sewage media due to the CONCAVE FLOAT•.
HOW IT WORKS: When Sewage enters the valve, it rises,
forcing air out ahead of it. Then as Sewage reaches the
CONCAVE FLOAT*, it raises the float and float stem
instantly, due to the very sensitive impact zone. This fast
action closes the Venting Mechanism, trapping the remain-
ing air in the valve body. This entrapped air is initially at
atmospheric pressure but it's compressed after the Venting
Mechanism closes, and sewage continues rising in the
valve, until air and sewage are the same pressure. The
sewage then stops rising, leaving the Venting Mechanism
free from contamination.
Additional gases given off by the sewage rise into the valve
body, displacing and lowering the sewage level until the
float drops, opening the Venting Mechanism allowing gases
to escape. Sewage again rises to occupy the space vacated
by the escaped gas, lifts the float and closes the Venting
Mechanism. This cycle is repeated frequently as air and gas
collect in the valve without spillage or spurting, due to
the sensitivity of the PATENTED CONCAVE FLOAT".
«-
A
BLOWOFF
VALVE
INLET
VALVE
Series 400 and 450 SARV
MODEL
SIZE INCHES
SHUTOFF
MAJOR
DIAMETER
OPERATING
PRESSURE
pal.
VALVE
VENTING
CAPACITY
CFFAM
WEIGHT
SHOWN 90'
OUILEr
VALVE
OUT OF
PLAIN
W/A
POSITION
2' NPT
I
BACKFLUSHING
N
55
ATTACHMENTS
400
VENTING OPTIONAL
0
17%
MECHANISM
W 1
0 -150 -
—BODY
9D
_
55'
V
30%
4" NPT
STEM
0_300
5
O
CONCAVE FLOAT*
PATENTED
R
50
T
E
R
«-
A
BLOWOFF
VALVE
INLET
VALVE
Series 400 and 450 SARV
MODEL
SIZE INCHES
HEIGHT
MAJOR
DIAMETER
OPERATING
PRESSURE
pal.
ORIFICE
DIAMETER
VENTING
CAPACITY
CFFAM
WEIGHT
INLET
OUILEr
VALVE
W/A
PLAIN
W/A
2' NPT
0 - 50 !
5116
55
400
S NPr
%NPT
17%
23%
7%
0 -150 -
1/4 STD
9D
41:
55'
4" NPT
0_300
5
50
SPECIFY APCO WITH CONFIDENCE - SEWAGE AIR RELEASE VALVE MODEL 400 & 450 SARV
xa* ' Sewage Air Release Valves shall have an elongated body and be designed to operate (open) while pressurized allowing entrained air in a
sewage force main line, sewage pump, or waste water system to escape through the air release orifice without SPILLAGE or SPURT. After
entrained air escapes through the air release orifice, the valve orifice shall be closed by a needle mounted on a compound lever mechanism,
(energized by a CONCAVE FLOAT*) and prevent media from escaping. The air release orifice will then remain closed until more air accumu-
lates and the opening cycle repeats automatically. The internal compound lever mechanism shall be stainless steel to prevent corrosion.
OPTIONAL Inlet and blow off valves, quick disconnect couplings and minimum 5' hose for flushing. (Engineer to specify).
The internal linkage shall be fitted with a stem, having a stainless steel CONCAVE FLOAT' threaded onto the opposite end. The CONCAVE
FLOAT' shall hang inside the valve body, slightly above the inlet 13" from the lever mechanism, thereby maintaining an air gap between the
mechanism and the waste media. The valve body and float shall withstand 500 psi shell test pressure. The valve inlet shall be 2", 3" 4", N.P.T.
Model 400 or 450. Engineer to specify.
Materials of construction shall be certified the following AS.T.M. specifications:
Body & cover Cast Iron ASTM Al26 GR.B
Internal Linkage, Stem Stainless Steel Series T300
Float' CONCAVE PATENTED Stainless Steel ASTM A240 T3D4
Needle Bune -N Nitrite Rubber
Exterior Paint Universal Metal Primer FDA Approved for Potable Water