TVI Valves
Custom Valve Solutions
Thermoplastic Butterfly Valves 2" - 8" are wafer style to fit between ANSI B16.5 Class 150 flanges. Disc is smooth and contoured for lowest possible pressure drop (highest Cv). Shaft is 410 S.S. and of one piece, through shaft design, with square drive through entire length of blade. 2" - 6" valves shall be complete with a spring loaded 15 position latch lever.
Unit of Measure

Specifications

Brands

N/A TVI

Type

N/A Wafer

Weight Per Valve

N/A 22.4 lb

Flow Coefficient Value (Cv)

N/A 2065
Torque1 N/A 850 in·lb

ANSI Dimensions

Size

N/A 8 in

Dimension D1

N/A 7.99 in

Dimension D2

N/A 11.75 in

Dimension D3

N/A 13.27 in

Dimension e

N/A 0.87 in

Dimension n

N/A 8 in

Dimension L

N/A 2.99 in

Dimension L1

N/A 3.43 in

Dimension H1

N/A 6.61 in

Dimension H2

N/A 8.03 in

Dimension H3

N/A 3.66 in

Dimension I

N/A 18.31 in

Dimension K

N/A 16.30 in

Body Test Pressure

N/A 222 psi

Seat Test Pressure

N/A 177 psi

Working Pressure

N/A 150 psi

Material of Construction

Materials of Construction2 N/A Part - Body
Pcs - 1
Material - Polyvinyl Chloride (PVC), Polypropylene (PP), Polyvinylidene Fluoride (PVDF), Chlorinated Polyvinyl Chloride (CPVC) (Available to 14")

Part - Disc
Pcs - 1
Material - Polyvinyl Chloride (PVC), Polypropylene (PP), Polyvinylidene Fluoride (PVDF), Chlorinated Polyvinyl Chloride (CPVC) (Available to 14")

Part - Stem
Pcs - 1
Material - SUS410, SUS304, and SUS316 Stainless Steel

Part - Stem O’Ring
Pcs - 2
Material - Ethylene Propylene Diene Monomer (EPDM), Viton®, and Nitrile (Butadiene) Rubber (BUNA N)

Part - Washer
Pcs - 1
Material - SUS304 Stainless Steel

Part - Seat
Pcs - 1
Material - Ethylene Propylene Diene Monomer (EPDM), Viton®, and Nitrile (Butadiene) Rubber (BUNA N)

Part - Disc O’Ring
Pcs - 2
Material - Ethylene Propylene Diene Monomer (EPDM), Viton®, and Nitrile (Butadiene) Rubber (BUNA N)

Part - Disc O’Ring
Pcs - 2
Material - Ethylene Propylene Diene Monomer (EPDM), Viton®, and Nitrile (Butadiene) Rubber (BUNA N)

Part - Stem Retainer
Pcs - 1
Material - SUS304 Stainless Steel

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

Part - Positioner
Pcs - 1
Material - SUS304, 8" Use SS41 Stainless Steel

Part - Screw
Pcs - 3
Material - SUS304 Stainless Steel

Part - Handle
Pcs - 1
Material - ABS

Part - Inserted Metal of Handle
Pcs - 1
Material - CS

Part - Nut
Pcs - 1
Material - Polyvinyl Chloride (PVC) Coated Brass, and SUS304 Stainless Steel

Part - Hand Lever
Pcs - 1
Material - SUS 304, and SUS41 Stainless Steel

Part - Spring
Pcs - 1
Material - SUS304 Stainless Steel

Part - Set Pin
Pcs - 1
Material - Brass

Construction

Body

N/A Polyvinyl Chloride (PVC), Chlorinated Polyvinyl Chloride (CPVC) (Available to 12"), ASTM D-1784
Polypropylene (PP), ASTM D-4101
Polyvinylidene Fluoride (PVDF), ASTM D-3222

Disc

N/A Polypropylene (PP), ASTM D-4101 (Standard 2" - 24" in PVC & PP valves)
Polyvinyl Chloride (PVC), Chlorinated Polyvinyl Chloride (CPVC), ASTM D - 1784 (CPVC disc standard in CPVC valves)
Polyvinylidene Fluoride (PVDF), ASTM D-3222

Shaft

N/A ASTM A-240, TYPE 410 Stainless Steel (Standard) 304 Stainless Steel, 316 Stainless Steel, and Titanium available

Seal/Seat

N/A Ethylene Propylene Diene Monomer (EPDM)
Fluorocarbon, Viton® (Dupont Dow Elastomers)
Nitrile (Butadiene) Rubber (BUNA N)

Hardware

N/A 2" Thru 24" 304 Stainless Steel 8 size positioner plate 410 Stainless Steel Chrome Plated

Lever

N/A Acrylonitrile Butadiene Styrene (ABS), ASTM D-1788

Gear Box

N/A Cast Iron Housing ASTM A-53, Epoxy Coated

Testing Procedure

Testing Procedure

N/A Every valve is tested for bubble tight shutoff prior to leaving the factory. Pressure testing preformed on Polyvinyl Chloride (PVC)/Ethylene Propylene Diene Monomer (EPDM) valves at 73 ºF water temperature, non-shock.

Additional Information

Additional Information

N/A 10"-24" valves shall have epoxy coated gear actuators with handwheel. 8" valves shall be either spring lever or gear actuated as required or specified. Seat liners shall be full faced with integral, ribbed flanges. No auxiliary gaskets shall be required for installation. Seat liners shall effectively isolate the body and shaft from the flow media. Seat liners shall also thermally insulate the body from the internal operating temperature. Valve liner and seals are replaceable.

Note

Note

N/A Other materials available upon request.
Not recommended for compressed air or gas service.
  • 1 Includes 30% Safety Factor
  • 2 Viton® is a trademark of DuPont Performance Elastomer.