The PP901A1004/U relief valve is designed for efficient pressure relief in HVAC systems. This valve is constructed from high-quality materials, ensuring durability and reliability. It operates effectively within specified pressure ranges, complying with industry standards for safety and performance. Ideal for various applications, this relief valve is essential for maintaining system integrity and preventing overpressure situations.
Commercial Building Controls : Pneumatic Products : Pneumatic Pressure Control : PP901 : PP901A1004/U
High pressure diaphragm operated reducing valve for single pressure systems
Overview
PP901 pneumatic valve controls the pressure of the air delivered to pneumatic control systems. Models available for single-pressure systems or two-pressure systems (Day/Night or Summer/Winter) requiring two independently regulated pressure settings.
Features
- Built-in adjustable safety relief valve for limiting downstream pressure.
- For two-pressure models: Pressure changes accomplished with manual switch or automatically with electric pneumatic switch.
- Adjustable stops for desired settings.
Product Specifications
- Application
- Pressure Reducing
- Dimensions (in.)
- 11 in. high, 8 7/8 in. wide, 3 3/4 in. deep
- Dimensions (mm)
- 279 mm high, 225 mm wide, 95 mm deep
- Maximum Safe Operating Pressure (psi)
-
- Maximum Safe Operating Pressure (kPa)
-
- Includes
- Gage tapping to measure the regulated pressure.
- Mounting
- Bracket furnished
- Approvals, Underwriters Laboratories Inc.
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- Approvals, CSA
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- Approvals, Factory Mutual
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- Connection Size (in.)
- Inlet and out air: 1/4 in. NPT (female) Air gage: 1/8 in. NPT (female)
- Differential Pressure Range (psi)
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- Differential Pressure Range (kPa)
-
- Approvals, NEMA Standard
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- Pressure Ratings (psi)
- Inlet-- 45 to 150 psi; Output-- primary pressure: adjustable 0 to 25 psi
- Pressure Ratings (kPa)
- Inlet-- 310 to 1034 kPa; Output-- primary pressure: adjustable 0 to 172 kPa
- Number of Pipes
-
- Changeover Pressure (psi)
-
- Changeover Pressure (kPa)
-
- Mainline Pressure Range (psi)
-
- Capacity
-
- Control Range (fpm)
-
- Control Range (m/s)
-
- Number of Sensor Inputs
-
- Remote Control Point Adjustment
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- Approximate Throttling Range, Midscale (psi)
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- Approximate Throttling Range, Midscale (kPa)
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