O-Series Pressure Regulating Valve for S
Price range: $407.49 through $1,637.76
The O-Series Pressure Regulating Valve provides an economical and reliable solution for reducing pressure in steam systems.
O-Series — Pressure Regulating Valve for Steam (Phosphor Bronze Diaphragm)
The O-Series Pressure Regulating Valve provides an economical and reliable solution for reducing pressure in steam systems. Constructed with a cast iron body and hardened stainless-steel internals, the O-Series is the most popular direct-operated regulator for steam applications.
Technical Specifications
| Body Material | Cast Iron |
| Seat | Stainless Steel (Teflon optional) |
| Diaphragm | Phosphor Bronze |
| Maximum Inlet Pressure | 250 PSIG |
| Minimum Inlet Pressure | 15 PSIG |
| Maximum Pressure Reduction | 125 PSI |
| Maximum Differential Pressure | 15 PSI |
| Connection | Threaded NPT (3/8" to 2" sizes) |
Single Spring Models (Phosphor Bronze Diaphragm)
| Size | Model Codes | Reduced Pressure (PSIG) | Weight (lb) |
|---|---|---|---|
| 3/8" NPT | O-11-N-13/14/09/10-B | 0-10 / 10-50 / 40-100 / 100-200 | 10 |
| 1/2" NPT | O-12-N-13/14/09/10-B | 0-10 / 10-50 / 40-100 / 100-200 | 10 |
| 3/4" NPT | O-13-N-13/14/09/10-B | 0-10 / 10-50 / 40-100 / 100-200 | 10 |
| 3/4" HC | OHC-13-N-0003/04/05/06-B | 0-10 / 10-50 / 30-50 / 40-85 | 15 |
| 1" NPT | O-14-N-0008/09/10-B | 10-30 / 30-50 / 40-85 | 19 |
| 1-1/4" NPT | O-15-N-0009/10-B | 30-50 / 40-85 | 19 |
| 1-1/2" NPT | O-16-N-0008/10/11-B | 10-30 / 40-85 / 30-50 | 47 |
| 2" NPT | O-17-N-0008/09/10/11-B | 10-30 / 30-50 / 40-85 / 30-50 | 48 |
Double Spring Models (Phosphor Bronze Diaphragm)
| Size | Model Codes | Reduced Pressure (PSIG) | Weight (lb) |
|---|---|---|---|
| 3/4" HC | OHC-13-N-0708/0809-B | 0-75 / 30-130 | 19 |
| 1" NPT | O-14-N-0809/0910-B | 0-75 / 30-130 | 22 |
| 1-1/4" NPT | O-15-N-0910-B | 30-130 | 22 |
| 1-1/2" NPT | O-16-N-0809/0910-B | 0-75 / 30-130 | 48 |
| 2" NPT | O-17-N-0809/0910-B | 0-75 / 30-130 | 48 |
Options & Adders
| Teflon Soft Seat (Code 6T) | Add 5% |
| High-Capacity (HC) Models | Available for 3/4" size |
Important: Use Phosphor Bronze diaphragms for steam service only. Use Viton diaphragms for air, water, or oil applications. Do not use phosphor bronze diaphragms on liquids — they may fracture.
| Weight | N/A |
|---|---|
| Brand | Watson McDaniel |
| Configuration | ream-1-1/4 DOUBLE SPRING by, ream-1-DOUBLE SPRING by, ream-3/4HC-DOUBLE SPRING by, team-1 SINGLE SPRING by, team-1-1/2 DOUBLE SPRING by, team-1-1/2 SINGLE SPRING by, team-1-1/4 SINGLE SPRING by, team-1/2 SINGLE SPRING by, team-2 SINGLE SPRING by, team-2-DOUBLE SPRING by, team-3/4 SINGLE SPRING by, team-3/4HC SINGLE SPRING by, team-3/8 SINGLE SPRING by |
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