PP901B1002 | Honeywell Pneumatic Pressure Reducing Valve Dual Pressure System, 45–150 psi Inlet

Honeywell · Valves & Process Control

Description  The Honeywell PP901B1002 is a high-pressure, diaphragm-operated pneumatic pressure reducing valve with a built-in adjustable relief valve. Designed for dual pressure systems, it maintains stable downstream pressure between 0–25 psi and 0–5 psi above the primary range, ensuring precise regulation and system safety in pneumatic control applications.     Technical Specifications  Condition New/Never Used Surplus Brand Honeywell Category Pneumatic Control Devices Part Number PP901B1002 Subcategory Pressure Reducing Valves Type Dual pressure pneumatic reducing valve Function Pressure regulation and relief Inlet Pressure Range 45–150 psi Output Pressure Range 0–25 psi (primary); 0–5 psi above primary (secondary) Pressure Relief Built-in adjustable relief valve Operation Diaphragm operated Pressure Adjustment Manual or via electric-pneumatic switch Connection Size 1/4 in. NPT female (inlet and outlet) Gage Connection 1/8 in. NPT female (for air gage and pilot) Mounting Type Bracket furnished for panel or wall mount Material Durable brass and steel assembly Dimensions 11 in. high × 8-7/8 in. wide × 3-3/4 in. deep Includes Gage tappings for regulated pressure measurement Temperature Range Standard ambient pneumatic environment Flow Capacity Suitable for industrial air systems Adjustments Independent high/low pressure settings with mechanical stops Application Dual pressure control for pneumatic instrumentation systems Certifications Honeywell OEM standard Weight 1.00 lbs (approx. 0.45 kg)   Information About PP901B1002 The PP901B1002 is part of Honeywell’s PP900 series of pneumatic reducing valves, specifically designed for dual pressure control applications in building automation and industrial pneumatic systems. This model features a diaphragm-operated mechanism that delivers precise downstream pressure regulation across a wide inlet range of 45 to 150 psi. It includes a built-in adjustable relief valve to prevent overpressure and protect connected components. Pressure changes can be made manually or automatically through an electric-pneumatic switch, providing flexibility in operation. Equipped with adjustable mechanical stops and gage tappings, the PP901B1002 allows for accurate calibration and convenient pressure monitoring. Its robust construction and reliable Honeywell engineering make it ideal for use in air control panels, actuating systems, and process control environments requiring stable pressure management. Key Features: Dual Pressure Operation: Supports two distinct pressure ranges—0–25 psi and 0–5 psi above the primary—for flexible control system configurations. Integrated Safety Relief Valve: Built-in adjustable relief valve limits downstream pressure to prevent damage or unsafe operating conditions. High Inlet Capacity: Accepts inlet pressures from 45 to 150 psi, making it suitable for a wide variety of pneumatic supply systems. Manual or Automatic Switching: Allows operator or electric-pneumatic control to switch between primary and secondary pressure levels. Diaphragm-Operated Design: Ensures smooth and stable pressure regulation with high repeatability and minimal maintenance. Convenient Monitoring: Equipped with gage tappings for direct measurement of regulated pressure at the valve. Compact and Durable Build: Constructed with heavy-duty materials to withstand industrial conditions while maintaining precise control. Adjustable Stops: Provides secure and repeatable pressure setting adjustments, enhancing system safety and control accuracy. Easy Installation: Includes mounting bracket for wall or panel installation in pneumatic cabinets or control panels. Reliable Honeywell Engineering: Tested and proven for consistent performance in demanding HVAC, process, and pneumatic applications. The PP901B1002 delivers the reliability and precision required for accurate dual pressure regulation and safety control in Honeywell pneumatic systems.

Brand: Honeywell · Category: Valves & Process Control

Key features

• Dual Pressure Operation: Supports two distinct pressure ranges—0–25 psi and 0–5 psi above the primary—for flexible control system configurations.
• Integrated Safety Relief Valve: Built-in adjustable relief valve limits downstream pressure to prevent damage or unsafe operating conditions.
• High Inlet Capacity: Accepts inlet pressures from 45 to 150 psi, making it suitable for a wide variety of pneumatic supply systems.
• Manual or Automatic Switching: Allows operator or electric-pneumatic control to switch between primary and secondary pressure levels.
• Diaphragm-Operated Design: Ensures smooth and stable pressure regulation with high repeatability and minimal maintenance.
• Convenient Monitoring: Equipped with gage tappings for direct measurement of regulated pressure at the valve.
• Compact and Durable Build: Constructed with heavy-duty materials to withstand industrial conditions while maintaining precise control.
• Adjustable Stops: Provides secure and repeatable pressure setting adjustments, enhancing system safety and control accuracy.
• Easy Installation: Includes mounting bracket for wall or panel installation in pneumatic cabinets or control panels.
• Reliable Honeywell Engineering: Tested and proven for consistent performance in demanding HVAC, process, and pneumatic applications.

Specifications

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