Cast Iron Triple Duty Valve
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125TDFI Series - PRODUCT DATA BULLETIN
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)
- 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.
| Items |
 /Asset/a1143.jpg 125TDFI-2 Cast Iron Triple Duty Valve |
/Asset/a1143.jpg 125TDFI-2 1/2 Cast Iron Triple Duty Valve |
/Asset/a1143.jpg 125TDFI-3 Cast Iron Triple Duty Valve |
/Asset/a1143.jpg 125TDFI-4 Cast Iron Triple Duty Valve |
/Asset/a1143.jpg 125TDFI-5 Cast Iron Triple Duty Valve |
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| Size | 50 mm2 in | 65 mm2 1/2 in | 80 mm3 in | 100 mm4 in | 125 mm5 in | |||||
| A | 213 mm8 3/8 in | 248 mm9 7/8 in | 250 mm10 in | 368 mm14 1/2 in | 406 mm16 in | |||||
| B | 244 mm9 5/8 in | 250 mm10 in | 257 mm10 1/8 in | 321 mm12 5/8 in | 416 mm16 3/8 in | |||||
| C | 159 mm6 1/4 in | 159 mm6 1/4 in | 238 mm9 3/8 in | 238 mm9 3/8 in | 279 mm11 in | |||||
| D (NPT) | 15 mm1/2 in | |||||||||
| E (NPT) | 8 mm1/4 in | |||||||||
| Flow Coefficient Cv1 | 82 | 128 | 188 | 334 | 528 | |||||
| Weight | 75 kg34 lb | 88 kg40 lb | 110 kg50 lb | 200 kg100 lb | 342 kg155 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) | |||||||||
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