Dwyer Instruments PCHP-1 | Pneumatic Calibration Hand Pump
The Dwyer Instruments PCHP-1 Pneumatic Calibration Hand Pump is a versatile calibration source covering both vacuum and pressure applications, with an operating range from -28 in. Hg vacuum to 600 psi (-0.945 to 40 bar). It uses a Schrader valve for quick, consistent full-open and full-close operation and is suitable for calibration and verification of pneumatic gauges, switches, and transmitters.
Genuine Control Techniques stock · Free UAE-wide shipping
Part Number: PCHP-1
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Product Overview
The Dwyer PCHP-1 is a pneumatic calibration hand pump designed to provide both vacuum and pressure generation from a single portable tool. Its wide operating range extends from -28 in. Hg vacuum to 600 psi (40 bar), allowing technicians to perform a range of calibration and verification tasks without switching between separate vacuum and pressure pumps.
The pump uses a Schrader valve rather than a conventional needle valve. This allows the valve to move between fully open and fully closed positions in just a few turns, providing a consistent control feel during repeated calibration procedures without relying on overtightening to improve the seal.
The PCHP-1 incorporates built-in 1/8" and 1/4" BSP ports. NPT-to-BSP parallel-thread adapters are supplied with the pump for applications requiring NPT fittings. The male ends of these adapters feature bonded washers to support a reliable connection seal.
Its construction combines stainless steel fittings, an anodized aluminum housing, plastic/rubber handles, and nitrile O-rings. Large check valves and O-rings positioned on both sides of the piston help maintain leak-free operation during pressure and vacuum generation.
The PCHP-1 is intended for use with air and compatible gases only. For users who require the hose kit included, the PCHP-1K offers the same specifications with the PCHP-HK High Pressure Hose bundled with the pump.
Key Benefits
- Covers -28 in. Hg vacuum to 600 psi (40 bar) in one calibration pump
- Supports both vacuum and pressure calibration applications
- Schrader valve provides quick, consistent full-open and full-close operation
- Built-in 1/8" and 1/4" BSP ports
- NPT-to-BSP parallel-thread adapters supplied with the pump
- Bonded washers on adapter ends support reliable sealing
- Large check valves for smooth operation
- O-rings on both sides of the piston help prevent leakage
- Stainless steel fittings and anodized aluminum housing
- Suitable for air and compatible gases
- Genuine Dwyer stock with free UAE-wide shipping
Who This Product Is Best For
The Dwyer PCHP-1 is suited for:
- Calibration technicians requiring both vacuum and pressure from one pump
- Field technicians verifying pneumatic gauges and pressure switches
- Instrumentation engineers calibrating pressure transmitters
- Applications requiring pressure generation up to 600 psi
- Pneumatic calibration work using air or compatible gases
- Users who need a compact, portable calibration source for field or bench testing
How to Use
- Fit the appropriate NPT-to-BSP adapter if an NPT connection is required.
- Connect the instrument under test to the appropriate process connection.
- Operate the pump and Schrader valve to generate the required vacuum or pressure.
- Connect and compare the instrument against a suitable reference gauge.
- Adjust or verify the instrument reading as required for the calibration procedure.
Frequently Asked Questions
What output range does the Dwyer PCHP-1 provide?
The PCHP-1 covers -28 in. Hg vacuum to 600 psi, equivalent to approximately -0.945 to 40 bar, allowing both vacuum and pressure calibration.
What type of valve does the PCHP-1 use?
The pump uses a Schrader valve instead of a needle valve. The valve can be moved between fully open and fully closed positions with only a few turns.
What ports does the PCHP-1 have?
The PCHP-1 has 1/8" and 1/4" BSP ports. NPT-to-BSP parallel-thread adapters are included for applications requiring NPT fittings.
What media can be used with the PCHP-1?
The PCHP-1 is intended for air and compatible gases only.
What materials are used in the PCHP-1?
The pump uses stainless steel fittings, an anodized aluminum housing, plastic/rubber handles, and nitrile O-rings.
How does the PCHP-1 help prevent leakage?
Large check valves and O-rings on both sides of the piston help maintain leak-free operation during pressure and vacuum generation.
What is the difference between the PCHP-1 and PCHP-1K?
The two models share the same pump specifications. The PCHP-1K additionally includes the PCHP-HK High Pressure Hose.
Is genuine Dwyer PCHP-1 stock available with UAE shipping?
Yes. Genuine Dwyer stock with free UAE-wide shipping is available. Call +971 6 5436933 for current pricing and availability.
Request a Quote Today
For pricing, stock availability, or ordering assistance for the Dwyer PCHP-1 Pneumatic Calibration Hand Pump, contact General Tech Services LLC.
Call: +971 6 5436933
Website: www.generaltechshop.ae
