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

 65 mm2 1/2 in

A

 248 mm9 7/8 in

B

 250 mm10 in

C

 159 mm6 1/4 in

D (NPT)

 15 mm1/2 in

E (NPT)

 8 mm1/4 in
Flow Coefficient Cv1 128

Weight

 88 kg40 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.