Danfoss 408 4 User Manual
Ball Check Valves
Storm Water and Wastewater Applications
Threaded Model 208, 208B, 208T
Flanged Model 408, 408
2
Threaded/Flanged Model 508
Model 408, 4082 & 408FB
Size Range: 3”- 14”
A favorite and proven valve Model in the submersible water and wastewater
industry for decades. The 408 features a clean-out port permitting access to the
inside of the valve without removal from the pipe line. Flanged ANSI 125
connections. Model 408FB is equipped with a “floating” rather than a “sinking”
ball to prevent backflow from drains.
On special request, Flomatic offers optional high temperature and chemical resistance
Model 408SS, an all stainless steel valve body with Nitrile coated metal ball or solid
glass filled Teflon Ball.
Model 408/4082/408FB are available in eight
different sizes: 3”,4”, 5”, 6”, 8”, 10”,12” and 14”.
Model Max. Temperture Max. Pressure
408 and 408FB
180oF
150 PSI
SPECIAL ADAPTATION:
All Model 408 valves can
be equipped with optional
Prox Switch. Optional
corrosion resistant coatings
are available.
HEADLOSS CHARTS
MODEL 208
MODEL 408
Warranty: LIMITED ONE YEAR WARRANTY: The Flomatic Corporation warrants that its Ball Check Valves in all sizes are free from defects in materials and workmanship.
Flomatic will replace any valve covered by this warranty found to be defective within one year from time of sale. This warranty will be void if the product has been modified in
any way by the purchaser, or is subject to unreasonable use.
PRESSURE LOSS
PRESSURE LOSS
PRESSURE LOSS
PRESSURE LOSS
FLOW IN GALLONS PER MINUTE
FLOW IN GALLONS PER MINUTE
FLOW IN GALLONS PER MINUTE
FLOW IN GALLONS PER MINUTE
A
Nominal
Size
Part
Number
C
Maximum
Width
D
Length
E
Ball
Diameter
Bolt
Circle
Diameter
Bolt
Hole
Diameter
Number
of
Bolts
Weight
(Pounds)
3”* 2144-2 10
1
/4”
9
1
/2”
3
15
/16”
6” 3/4” 4 45
4”* 2145-2 11
3
/4”
11
1
/2”
4
23
/32”
7
1
/2
” 3/4” 8 72
5” 2143 13
1
/8”
13
25
/32”
6
1
/64”
8
1
/2
” 7/8” 8 85
6” 2146 14
27
/32”
16
1
/16”
7
1
/4”
9
1
/2
” 7/8” 8 132
8” 2147 18
5
/8”
19
11
/16”
9
21
/32”
11
3
/4”
7/8” 8 218
10” 2148 22
59
/64”
23
5
/8”
11
13
/16”
14
1
/4”
1” 12 272
12” 2149 28
25
/64”
27
35
/64”
14
13
/32”
17” 1” 12 541
14” 2150 32
9
/32”
34
29
/64”
16
35
/64”
18
3
/4”
1
1
/8
” 12 790
Flomatic Corporation
15 Pruyn’s Island Drive
Glens Falls, NY 12801-4421
Telephone: 1-(800)-833-2040 Direct Telephone: 1-(518)-761-9797
Fax: 1-(800)-314-3155 Direct Fax: 1-(518)-761-9798
www.flomatic.com
Flomatic Valves
High Quality Valves Built to Last...
MODEL 508
MODEL 208T
MODEL 408 & 408
2
*Model 408
2
1M 5/16
High Quality Valves Built to Last…
From America’s #1 Ball Check Valve Manufacturer...
Benefits & Features
Valves that end clogging
Flow Efficient
Low Maintenance Cost
Recommended for flow velocities of
3’ to 5’ per sec. Horizontal installation
requires 20’ static head for positive
sealing.
Available in:
Cast iron Ductile Iron
Stainless Steel PVC
*FLOATING BALL ALSO AVAILABLE, ADD “FB” TO PART NUMBER
FOR REFERENCES USE ONLY, SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE.
Model 208 Ball Check Valve - Cast Iron
Model 208T PVC Ball Check - Plastic
Size Range: 1”- 2”
Epoxy coated Cast Iron body Model
208 . Features NITRILE (Buna-N)
“Sinking Ball” or Floating Ball” (ad “FB”
to part number). E-Z access port for
cleaning or backflush.
Size Range: 1
1
/
4
”- 1
1
/
2
” 2”.
Temp Max: 180o (80C)
Epoxy coated Cast Iron body with
corrosion resistant phenolic ”Sinking Ball”
(floating optional Model 508FB. Simple
two bolt access cover for clean out.
Feature replaceable NITRILE (Buna-N)
valve seat.)
3” & 4” have no access cover
4” model is flanged.
Model 508/508FB are available in
seven different sizes: 1”, 1
1
/
4”, 1
1
/
2”, 2”, 2
1
/
2”, 3” and
4.”
Model 208T, corrosion resistant PVC body.
Threaded female x female connection.
Nitrile (Buna-N)seal. Also available with
PVC socket weld Model 208S.
Sizes: 1”, 1
1
/
4
”
, 1
1
/
2
”
, 2”. Temp Max: 150
o
(65C)
Not for ground burial.
Buna-N Vulcanized
Metal Ball
Unrestricted
Flow Way
Access port for in-line service.
Epoxy coated inside and out
Size Part Number
“A”
“B”
Width
Weight
(Pounds)
1” 3232
4
1
/
2
” 2
21
/
32
” 3
15
/
16
”
3.5
1
1
/
4
”
3233
5
13
/
64
” 3
7
/
64
” 4
1
/
4
”
4.5
1
1
/
2
”
3234
5
45
/
64
” 3
13
/
32
” 4
51
/
64
”
6
2”
3235
6
27
/32
” 4” 5
7
/
16
”
8
2
1
/
2
”
3236
7
7
/
8
” 4
29
/
32
” 6
1
/
4
”
11.5
3”
2044
9
19
/32
”
5” 8
9
/16
”
30
4”
2045
10
9
/16
”
6”
10
19
/32
”
45
Add “T ” after part number for NPT threads. Add “S” after part number for solvent weld.
Add “P ” after part number for BSPP threads. Not for ground burial.
New Vacuum Relief feature to reduce water hammer & noise in piple lines
*
Available NPT, BSPP or solvent weld connections. Valve can be used at temperatures up to 180
o
F (80oC).
1-PVC CAP
2-NITRILE “O” RING
3-NITRILE BALL
4-PVC BODY
Item
Quanity
Description
Material
ASTM
1
1
Body
(Epoxy Coated)
Cast Iron
A - 48
2
1
Cover
(Epoxy Coated)
Cast Iron
A - 48
3
1
*Ball
Phenolic
4
1
Seat Seal
Nitrile
5
1
Bonnet Seal
Nitrile
6
2
Bolt
Stainless Steel
304
7
4
Washer
Stainless Steel
304
8
2
Hex Nut
Stainless Steel
304
Models 208, 408, 4082 and 508
Flomatic Ball Check Valves
are especially designed for
demanding wastewater
and storm water pumping
applications.
Model 508
(Formally Model 50)
Model 208 Model 408 & 408
2
1
1
/
4
”
- 2” 3” - 14”
Stainless Steel Bolts
Stainless Steel Bolts
Cast Iron Body
Phenolic Ball
Seal
Threaded Brass Plate
Hex Nuts
Stainless Steel
Retaining Ring
Cast Iron Body
Ductile Iron
Access Plate Ductile Iron
Phenolic Ball
Seal
Rubber Covered
Hollow Iron Ball
Rubber Seal
Stainless Steel
Screws
Model 208
Model 208T
Model 508 and 508FB
Size Range: 1”- 4”
3” 4”
Model Max. Temperture Max. Pressure
508 and 508FB
180oF
150 PSI
Size (in.) Part # A B C WGT.(lbs.)
1
1
/
4
” 2141 5
1
/
16
” 2
1
/
2
” 3” 4 .5
1
1
/
2
” 2142-0 6
3
/
4
” 3
1
/
2
” 4
3
/
16
” 9.5
2 ” 2142 6
3
/
4
” 3
1
/
2
” 4
3
/
16
” 9
Item Qty. Description Material ASTM#
1 1
Valve Body
(EPOXY COATED)
Cast Iron A126 Class B
2 1
Ball
(SINKING)
Buna-N ---------
3 1 Cap Cast Iron A126 Class B
4 1 O-Ring Buna-N ---------
* Optional bosses for rail mounting available on the 208B model.
“A”- Size
Part
Number
A
Maximum
Width
B
Maximum
Ball
Diameter
Weight
(Pounds)
1
”
- NPT
2131T
6
27
/32”
4
1
/2”
1
1
/2”
1.0
1” -Socket
2131S 6
25
/32”
4
1
/2”
1
1
/2”
1.0
1
1
/4”
-NPT
2132T 5
21
/32”
4
1
/2”
1
1
/2”
1.0
1
1
/4”
Socket
2132S
5
5
/8”
4
1
/2”
1
1
/2”
1.0
1
1
/2”
-NPT
2133T 8
13
/64”
6
11
/32”
2
1
/2”
1.5
1
1
/2
”Socket
2133S 8
13
/64”
6
11
/32”
2
1
/2”
1.5
2”-NPT
2134T 7
1
/16”
6
11
/32”
2
1
/2”
1.5
2”-Socket
2134S 7
1
/16”
6
11
/32”
2
1
/2”
1.5
CAP
O'RING
BALL
BODY
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