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Item Number 125TDFI-8, 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
200 mm
8 in

A
546 mm
21 1/2 in

B
470 mm
18 1/2 in

C
317 mm
12 1/2 in

D (NPT)
20 mm
3/4 in

E (NPT)
8 mm
1/4 in

Flow Coefficient Cv1
1371

Weight
772 kg
350 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)