Watts
Watts 152A 3/4 in 30-140 psi Steam Pressure Regulator Valve
Iron steam pressure regulator valve with 3/4 in FNPT connection, adjustable 30 to 140 psi range, 200 psi maximum pressure and 300 °F temperature rating
- Regulates steam pressure precisely across a 30-140 psi range
- Iron body withstands up to 300 degrees Fahrenheit
- Handles maximum inlet pressure of 200 psi
- 3/4 inch FNPT connection fits standard piping
- Medium-capacity valve design suits process steam applications
Watts 152A Steam Pressure Regulator
The Watts 152A is a medium-capacity process steam pressure regulator built for industrial and commercial steam lines. It accepts 3/4 inch FNPT connections and regulates downstream pressure between 30 and 140 psi. The iron body suits saturated steam service up to 300 degrees F. It is intended for plant engineers and maintenance crews who need reliable pressure control on steam mains.
Sustained Load Behaviour
The valve maintains its set pressure across the 30 to 140 psi adjustment range during continuous steam flow. Iron construction withstands the maximum operating temperature of 300 degrees F without degradation. The body is rated for 200 psi maximum inlet pressure, providing a safety margin above the regulation range. No integral strainer is fitted, so upstream filtration must be supplied separately to protect the seat during prolonged operation.
Build Quality and Mounting Implications
The iron body and FNPT threads allow direct installation into standard 3/4 inch steam piping without adapters. Overall height is 8 15/16 inches and length is 6 inches, so clearance above and beside the pipe run must be verified before fitting. The absence of a strainer means a separate wye strainer should be piped upstream to prevent debris from affecting regulation accuracy over time.
Highlights
- Regulates steam pressure precisely across a 30-140 psi range
- Iron body withstands up to 300 degrees Fahrenheit
- Handles maximum inlet pressure of 200 psi
- 3/4 inch FNPT connection fits standard piping
- Medium-capacity valve design suits process steam applications
Specifications
| Brand | WATTS |
|---|
Questions about this item
How much heat does the Watts 152A valve handle during continuous steam service?
The valve body is rated for a maximum temperature of 300 degrees F, so it will withstand continuous steam at that limit without degrading.
What piping does the 3/4 in FNPT connection on the Watts 152A require?
It needs a 3/4 inch female NPT threaded pipe or fitting; the valve installs directly into that thread without adapters.
Will the Watts 152A regulate pressure for an older low-pressure steam system running below 30 psi?
No, the adjustment range starts at 30 psi, so it cannot control systems that operate below that threshold.
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