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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

Size

 N/A 200 mm8 in

A

 N/A 546 mm21 1/2 in

B

 N/A 470 mm18 1/2 in

C

 N/A 317 mm12 1/2 in

D (NPT)

 N/A 20 mm3/4 in

E (NPT)

 N/A 8 mm1/4 in
Flow Coefficient Cv1 N/A 1371

Weight

 N/A 772 kg350 lb

Maximum Allowable Working Pressure

 N/A 200 psig at 150 ºF

Maximum Allowable Working Temperature at EPDM Seal

 N/A 250 ºF

Maximum Allowable Working Temperature at Viton Seal

 N/A 400 ºF

Valve Body Material

 N/A A126-B Cast Iron

Valve Disc Material

 N/A B62 Bronze

Valve Stem Material

 N/A 410 Stainless Steel

Valve Stem Guide Material

 N/A A536 Ductile Iron

Packing Material

 N/A Non-Asbestos Fiber

Packing Gland Material

 N/A A126-B Cast Iron

Spring Material

 N/A 300 series Stainless Steel

Valve Seat Ring Material

 N/A A536 Nickel Plated Ductile Iron

Valve Seat Seal Material

 N/A EPDM O-Ring (Viton Optional)

Valve Disc Seat Material

 N/A 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.