Butterfly Valve
Ref.# 054151800
Lever Handle Type (2"-8")
Gear Type (8”-24”)

 

DESIGN ADVANTAGES

  • Lower initial cost compared to other valve types.
  • Easier installation due to narrow face to face affords lowest installed cost.
  • Designed to fit between ANSI D-16.5 Class 150 flat faced flanges.
  • Strong, one piece molded body design.
  • One piece standard S.S. through shaft for positive disc rotation and support.
  • Standard polypropylene (PP) disc for higher (180°F) temperature service.
  • Full body liner seat with integral flanges (eliminates the need for flange gaskets) ribbed for positive flange seating with minimum required torque.
  • Standard PVC body and S.S. shaft are effectively isolated from the flow media by the full liner seat.
  • Standard S.S., carbon steel plated, or epoxy coated external hardware for added corrosion resistance.
  • 2" - 8" valves have spring loaded latch lever for positive disc positioning and shut-off.
  • 8" - 24" valves have epoxy coated self-locking worm gear actuators for ease of operation and accurate flow control.
  • Electric and pneumatic actuation packages available.
  • Locking handles available.
  • Stem extensions, universal joints, floor stands available in a variety of materials.
    0541518buterfly.jpg (27470 bytes)

Materials Of Construction

Item

Parts

Pcs

Materials

1

Body

1

PVC,PP,PVDF

2

Disc

1

PVC,PP,PVDF

3

Stem

1

SUS410, SUS304, SUS316

4

Stem O-Ring

2

EPDM,VITON® BUNA N

5

Washer

1

SUS304

6

Seat

1

EPDM,VITON® BUNA N

7

Disc O-Ring

2

EPDM,VITON® BUNA N

8

Disc O-Ring

2

EPDM,VITON® BUNA N

9

Stem Retainer

1

SUS304

10

Retainer Cap

1

PVC,PP

11

Positioner

1

SUS304, 8" use SS41

12

Screw

3

SUS304

13

Handle

1

ABS

14

Inserted Metal of Handle

1

CS

15

Nut

1

PVC coated brass, SUS304

16

Hand Lever

1

SUS304, SUS41

17

Spring

1

SUS304

18

Set Pin

1

Brass

TVI BUTTERFLY VALVE (2" - 8")

DESIGN SPECIFICATIONS
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 minimum 11 position latch lever. 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. Materials of construction shall be: (select as required for service)

BODY
PVC,ASTM D-1784, (Standard 2-14") PP and PVDF available
PP, ASTM D-4101 (Standard 16-24") PVDF available
PVDF, ASTM D-3222

DISC
PP, ASTM D-4101 (Standard)
PVC,ASTM D-1784
PVDF, ASTM D-3222

SHAFT
ASTM A-240, TYPE 410 S.S. (Standard) 304 S.S., 316 S.S. and Titanium available

SEALS / SEAT
EPDM, Ethylene Propylene Diene Monomer
Fluorocarbon, VITON ®
Nitrale (BUNA N)

HARDWARE
2" THRU 24" 304 S.S. 8" size positioner plate 410 S.S. Chrome Plated

LEVER
ABS, ASTM D-1788

GEAR BOX
Cast iron housing ASTM A -53, Epoxy coated

VITON ® is a registered trademark of DuPont Dow Elastomers.

OTHER MATERIALS AVAILABLE UPON REQUEST.

Not recommended for compressed air or gas service

  
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