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Cast Iron Triple Duty Valve
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Item Number 125TDFI-8
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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.
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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 Cv
1
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)