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Item Number 125TDFI-4, Cast Iron Triple Duty Valve



Model '125TDFI'

Available in sizes 2" to 12" with ANSI 125# FF flanged ends for maximum operating pressures as follows:
PMO: (Maximum Operating Pressure)
200 psi @ 150 deg. F.

Materials of Construction:
  • Body: Cast Iron
  • Disc: Bronze
  • Stem: Stainless Steel
  • Seat Ring: Nickel Plated Ductile Iron
  • Seat Seal: EPDM O-Ring (Viton Optional)
  • Disc Seat: EPDM O-Ring (Viton Optional)
Features:
  • Acts as three valves in one. On a pump discharge, the triple duty valve eliminates the need for a separate balancing valve, shut-off valve and check valve.
  • These valves are designed for vertical upward or horizontal flow patterns.




Unit of Measure: Imperial Metric Both

 Specifications   

Size

100 mm
4
in

A

368 mm
14 1/2
in

B

321 mm
12 5/8
in

C

238 mm
9 3/8
in

D (NPT)

15 mm
1/2
in

E (NPT)

8 mm
1/4
in

Flow Coefficient Cv1

334

Weight

200 kg
100
lb

Maximum Allowable Working Pressure

200 psig at 150 ºF

Maximum Allowable Working Temperature at EPDM Seal

250 ºF

Maximum Allowable Working Temperature at Viton Seal

400 ºF

Valve Body Material

A126-B Cast Iron

Valve Disc Material

B62 Bronze

Valve Stem Material

410 Stainless Steel

Valve Stem Guide Material

A536 Ductile Iron

Packing Material

Non-Asbestos Fiber

Packing Gland Material

A126-B Cast Iron

Spring Material

300 series Stainless Steel

Valve Seat Ring Material

A536 Nickel Plated Ductile Iron

Valve Seat Seal Material

EPDM O-Ring (Viton Optional)

Valve Disc Seat Material

EPDM O-Ring (Viton Optional)
1 Cv is defined as the gallon per minute of water that will flow through a given valve opening with a pressure drop of one (1) psi.


 DOWNLOADS 

125TDFI Series - Product Data Bulletin
(PDF, 292KB)