TVI Valves
Unit of Measure

Specifications

Brands

TVI

Type

Wafer

ANSI Dimensions

Nominal Size

1-1/2 in

Dimension D1

0.89 in

Dimension D3

3.76 in

Dimension P

1.38 in

Dimension L

0.63 in

Dimension H

0.99 in

Dimension R

68 in
Working Pressure1 145 psi

Pressure to Open

0.1 psi

Required Back Pressure

1 psi

Weight Per Valve

1 lb

Flow Coefficient Value (Cv)

26

Material of Construction

Materials of Construction

Part - Body
Pcs - 1
Material - Polyvinyl Chloride (PVC), Polypropylene (PP), Chlorinated Polyvinyl Chloride (CPVC), and Polyvinylidene Fluoride (PVDF)

Part - Flapper
Pcs - 1
Material - Polyvinyl Chloride (PVC), Polypropylene (PP), Chlorinated Polyvinyl Chloride (CPVC), and Polyvinylidene Fluoride (PVDF)

Part - Flapper Mounting Screw
Pcs - 1
Material - Polypropylene (PP)

Part - O-Ring
Pcs - 1
Material - Unplasticized Polyvinyl Chloride (UPVC) and Viton®

Part - Installation Device
Pcs - 1
Material - SS 316 Stainless Steel

Part - Spring
Pcs - 1
Material - SS 316 Stainless Steel

Construction

Body and Flapper

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

Flapper Mounting Screw

Polypropylene (PP), ASTM D-4101

Seals (O-Rings)

Ethylene Propylene Diene Monomer (EPDM)
Fluorocarbon, Viton® (Dupont Dow Elastomers)

Installation Device

316 Stainless Steel

Connection

Wafer style to fit between ANSI B16.5 Class 150 Flanges

Options

316 Stainless Steel Spring Assist
Spacer

Applications

Water and Waste Treatment
Chemical Industry
Environmental Industry
Process Industry
Systems Engineering

Design Advantages

Design Advantages

Vertical or Horizontal operation
Economic ~ Simple and durable construction
Compact ~ Requires little space in piping system
Easy Installation ~ Wafer body fits between standard ANSI flanges (2-1/2" & 3"valves require spacers)
Body Construction ~ Light Weight, Chemical Resistant, Non-Corrosive
Available with 316 SS Spring Assist.

Testing Procedure

Testing Procedure

Testing performed on Polyvinyl Chloride (PVC)/Ethylene Propylene Diene Monomer (EPDM) valves at 73 ºF water temperature, non-shock.

Note

Note

Wafer Checks are not full port valves. R = Disc angle in the open position
  • 1 Working Pressure for both Polyvinyl Chloride (PVC) and Chlorinated Polyvinyl Chloride (CPVC) Valves.