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TVI Valves
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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.
Unit of Measure

Specifications

Brands

 N/A TVI

Type

 N/A Swing

Flow Coefficient Value (Cv)

 N/A 500

ANSI Dimensions

Size

 N/A 4 in

Dimension D1

 N/A 3.94 in

Dimension D2

 N/A 7.50 in

Dimension D3

 N/A 9.00 in

Dimension e

 N/A 0.75 in

Number of Holes (n)

 N/A 8

Dimension D4

 N/A 9.25 in

Dimension D5

 N/A 10.44 in

Dimension D6

 N/A 6.69 in

Dimension L

 N/A 11.93 in

Dimension T

 N/A 0.87 in

Dimension A

 N/A 0.41 in

Dimension h

 N/A 3.53 in

Dimension H

 N/A 8.38 in

Working Pressure (Elastomer)

 N/A 100 psi

Working Pressure (Tetrafluoroethylene (TFE))

 N/A 70 psi

Material of Construction

Materials of Construction1 N/A Part - Body
Pcs - 1
Material - Polyvinyl Chloride (PVC), Polypropylene (PP), Polypropylene Glycols (PPG), and Polyvinylidene Fluoride (PVDF)

Part - Bonnet
Pcs - 1
Material - Polyvinyl Chloride (PVC), Polypropylene (PP), Polypropylene Glycols (PPG), and Polyvinylidene Fluoride (PVDF)

Part - Disc
Pcs - 1
Material - Polyvinyl Chloride (PVC), Polypropylene (PP), Polypropylene Glycols (PPG), and Polyvinylidene Fluoride (PVDF)

Part - Sheet Gasket Holder
Pcs - 1
Material - Polyvinyl Chloride (PVC), Polypropylene (PP), Polypropylene Glycols (PPG), and Polyvinylidene Fluoride (PVDF)

Part - Swing Arm
Pcs - 1
Material - Polyvinyl Chloride (PVC), Polypropylene (PP), Polypropylene Glycols (PPG), and Polyvinylidene Fluoride (PVDF)

Part - Disc Gasket
Pcs - 1
Material - Ethylene Propylene Diene Monomer (EPDM), Viton® Tetrafluoroetheylene (TFE)

Part - Bonnet Gasket
Pcs - 1
Material - Ethylene Propylene Diene Monomer (EPDM), Viton®

Part - Shaft
Pcs - 1
Material - Polyvinyl Chloride (PVC), Polypropylene (PP), Polypropylene Glycols (PPG), and Polyvinylidene Fluoride (PVDF)

Part - Washer
Pcs - 1" - 3" (6 sets) and 4" - 8" (8 sets)
Material - SUS304 Stainless Steel

Part - Bolts
Pcs - 1" - 3" (6 sets) and 4" - 8" (8 sets)
Material - SUS304 Stainless Steel

Part - Nuts
Pcs - 1" - 3" (6 sets) and 4" - 8" (8 sets)
Material - SUS304 Stainless Steel

Part - Disc Holder
Pcs - 1
Material - Polyvinyl Chloride (PVC), Polypropylene (PP), Polypropylene Glycols (PPG), and Polyvinylidene Fluoride (PVDF)

Part - O-ring
Pcs - 1
Material - Ethylene Propylene Diene Monomer (EPDM), Viton®

Part - Shaft Holder
Pcs - 1
Material - Polyvinyl Chloride (PVC), Polypropylene (PP), Polypropylene Glycols (PPG), and Polyvinylidene Fluoride (PVDF)

Part - Set Bolts
Pcs - 1" - 2" (1) and 2-1/2" - 4" (3)
Material - Polyvinyl Chloride (PVC) and Polypropylene (PP)
Pcs - 5" - 6" (4) and 8" (8)
Material - Polypropylene Glycols (PPG) and Polyvinylidene Fluoride (PVDF)

Part - Set Pin
Pcs - 1
Material - Polyvinyl Chloride (PVC), Polypropylene (PP), and Polypropylene Glycols (PPG), and 316 stainless Steel

Part - Bracket
Pcs - 1
Material - 316 Stainless Steel

Part - Nut
Pcs - 1
Material - 316 Stainless Steel

Part - Adjustment Stem
Pcs - 1
Material - 316 Stainless Steel

Part - Spring
Pcs - 1
Material - 316 Stainless Steel

Part - Lever (Rod Eye)
Pcs - 1
Material - Plated Carbon Steel

Part - Pin
Pcs - 1
Material - 316 Stainless Steel

Construction

Body/Bonnet

 N/A Polyvinyl Chloride (PVC), ASTM D-1784
Polypropylene (PP), ASTM D-4101
Polyvinylidene Fluoride (PVDF), ASTM D-3222

Disc Assembly/Shaft

 N/A Polyvinyl Chloride (PVC), ASTM D-1784
Polypropylene (PP), ASTM D-4101
Polyvinylidene Fluoride (PVDF), ASTM D-3222

Seal/Seat

 N/A Ethylene Propylene Diene monomer (EPDM)
Fluorocarbon, Viton® (Dupont Dow Elastomers)
Fluorel (3M Corp.)
Polytetrafluoroethylene (PTFE) (Dupont Dow Elastomers)

External Fasteners

 N/A 304 Stainless Steel

Testing Procedure

Testing Procedure

 N/A Testing performed on Polyvinyl Chloride (PVC) material at 73 ºF water temperature, non-shock.

Additional Information

Additional Information

 N/A 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 fully 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.
  • 1 Viton® and Polytetrafluoroethylene (PTFE) are trademarks of DuPont Performance Elastomers.