Dwyer Instruments psn-b-e-25 Brass Pressure Snubber

Product Description

The DWYER INSTRUMENTS psn-b-e-25 is a brass pressure snubber with a 1/4 inch male pipe thread (MPT) connection, designed to protect pressure gauges and sensitive instrumentation from pressure spikes, pulsation, and water hammer. The Type E porosity element inside the snubber restricts flow just enough to dampen sudden pressure surges while still allowing accurate steady-state pressure readings. This part is installed by licensed plumbers, HVAC technicians, and instrumentation technicians wherever pressure sensing equipment needs protection from damaging transient events.

This snubber is suited for residential and light commercial applications involving water and light oil service lines. It threads directly into the inlet port of a pressure gauge or transmitter using a standard 1/4 inch MPT connection. Typical installation scenarios include hydronic heating systems, water supply lines, pump discharge piping, and light oil distribution systems where pressure pulsation from pumps or compressors would otherwise shorten gauge service life or cause erratic readings.

Key Features

• Type E porosity element rated for water and light oil service
• Brass body construction provides corrosion resistance in water and light oil systems
• 1/4 inch MPT connection for direct installation into standard gauge ports
• Dampens pressure spikes and pulsation to protect downstream instrumentation
• Compact design allows installation in tight instrument manifold configurations

Compatibility

Designed as an OEM-style replacement pressure snubber for use with pressure gauges and transmitters equipped with 1/4 inch MPT inlet ports in water and light oil service applications.

Installation Notes

A licensed plumber or instrumentation technician should install this snubber. Shut off system pressure and relieve any residual line pressure before removing an existing snubber or gauge. Apply thread sealant tape or pipe dope appropriate for the service fluid to the MPT threads before installation. Do not overtighten the threaded connection, as brass fittings are susceptible to thread damage from excessive torque.

Technical Specifications

• Connection Type: 1/4 inch MPT
• Body Material: Brass
• Porosity Type: Type E
• Media Compatibility: Water, Light Oil

Standard Information

• Brand: DWYER INSTRUMENTS
• Manufacturer Part Number: psn-b-e-25