World-Class Engineered Thermoplastic Valves

Valves

Horizontal Swing Check Valve

Flange Type (3/4"-8")

  • Lowest pressure drop compared to other check valve designs.
  • Top entry design for easy maintenance.
  • Can be installed in either vertical or horizontal piping system.
  • Minimal required back pressure to fully seat disc.
  • Full open stop to prevent disc over travel and insure proper closing action.
  • No metal internals to prevent the possibility of corrosion.
  • Full faced seat for drop tight shut-off.
  • Stainless steel external fasteners.
  • Easily modified for spring assist option.
  • Designed to fit between ANSI B16.5 Class 150 flanges.
Horizontal Swing Check Valve Diagram

Materials of Construction

ITEM PARTS PCS MATERIALS
1 Body 1 PVC,PP,PPG,PVD
2 Bonnet 1 PVC,PP,PPG,PVDF
3 Disc 1 PVC,PP,PPG,PVDF
4 Sheet Gasket Holder 1 PVC,PP,PPG,PVDF
5 Swing Arm 1 PVC,PP,PPG,PVDF
6 Disc Gasket 1 EPDM,VITON®TFE
7 Bonnet Gasket 1 EPDM,VITON®
8 Shaft PVC,PP,PPF,PVDF
9 Washer 1"-3" 6 Sets
4"-8" 8 Sets
SUS304
10 Bolts SUS304
11 Nuts SUS304
12 Disc Holder PVC,PP,PPG,PVDF
13 O-ring EPDM,VITON®
14 Shaft Holder PVC,PP,PPG,PVDF
15 Set Bolts 1"-2" - 1
21/2"-4" 3
5"-6"- 4
8"- 8
PVC, PP, PPG, PVDF
16 Set Pin 1 PVC, PP, PPG, 316 SS
17 Bracket 1 316 Stainless Steel
18 Nut 1 316 Stainless Steel
19 Adjustment Stem 1 316 Stainless Steel
20 Spring 1 316 Stainless Steel
21 Lever (rod eye) 1 Plated Carbon Steel
22 Pin 1 316 Stainless Steel

VITON® and TEFLON® are trademarks of DuPont Performance Elastomers

Ansi Dimensions

Size Inch D1 D2 D3 e n
No. of Holes
D4 D5 D6 L T A h H Working Pressure
Elastomer TFE
3/4" 1.00 2.75 4.25 0.63 4 4.34 5.13 2.97 6.31 0.50 0.25 1.56 4.72 150 100
1" 1.00 3.13 4.25 0.63 4 4.34 5.13 2.97 6.31 0.59 0.25 1.56 4.72 150 100
1 1/2 " 1.63 3.88 5.00 0.63 4 4.94 5.72 3.34 7.09 0.63 0.31 1.78 5.44 150 100
2" 2.06 4.75 6.00 0.75 4 6.09 7.09 4.13 7.88 0.83 0.31 2.16 6.46 150 100
2 1/2" 3.16 5.50 7.00 0.75 4 7.13 8.06 5.13 10.25 0.83 0.34 2.75 6.72 150 100
3" 3.16 6.00 7.50 0.75 4 7.13 8.06 5.13 10.25 0.83 0.34 2.75 6.75 150 100
4" 3.94 7.50 9.00 0.75 8 9.25 10.44 6.69 11.93 0.87 0.41 3.53 8.38 100 70
5" 4.94 8.50 10.00 0.88 8 11.22 13.00 8.28 13.78 0.87 0.56 4.34 9.38 100 70
6" 5.53 9.50 11.00 0.88 8 13.00 14.56 9.84 15.75 0.91 0.63 5.31 10.56 100 70
8" 7.88 11.75 13.50 0.88 8 15.31 16.71 11.81 19.69 1.02 0.72 6.69 12.06 70 70

Testing performed on PVC material at 73°F water temperature, non-shock.

Swing Check Valves (3/4" - 8" Flanged)

Design Specifications

Thermoplastic Swing Check Valves 3/4"-8" flanged design shall employ molded thermoplastic body, disc assembly, bonnet, and shaft. Metal internals are not acceptable. Valves have a full faced disc seal. Valves require low back pressure for drop-tight seating. Valves are of low pressure drop design. Body has a full open disc stop to prevent over travel and insure proper closing action. Bonnet is full gasketed and fastened using stainless steel hardware. Valves are top entry design for ease of maintenance. Valves are suitable for vertical and horizontal installation. Flanged ends are designed for installation between ANSI B16.5 Class 150 flanges. Materials of construction shall be as follows: (select as required for service)

Body/Bonnet

PVC, ASTM D-1784
PP, ASTM D-4101
PVDF, ASTM D-3222

Disc Assembly / Shaft

PVC, ASTM D-1784
PP, ASTM D-4101
PVDF, ASTM D-3222

Seat/Seal

EPDM,Ethylene propylene diene monomer
Fluorocarbon, Viton® (DuPont Performance Elastomers)
Fluorel (3M Corp.)
PTFE (Polytetrafluoroethylene), Teflon® (DuPont Dow Elastomers)

External Fastners

304 Stainless Steel

NOTE: Can be easily modified for spring assist operation.