In 1939, Frank W 'Pat' Murphy's designed his first product - a mechanical pressure gauge with adjustable safety switch. Since then, the Murphy Swichgage® has built a worldwide reputation.

They're durable and dependable. They're highly accurate and long-lasting.

We didn't make them so popular - our customers did. We just make them solid and reliable every time.

In this section

20P/25P pressure Swichgage®
20T/25T temperature Swichgage®
The 2- and 2.5-inch (51 and 64mm) dial Swichgage® instruments. Metal case, ground return, optional snap-switch.

A20P/A25P pressure Swichgage®
A20T/A25T temperature Swichgage®
The 2- and 2.5-inch (51 and 64mm) dial Swichgage® instruments. Polycarbonate sealed case, insulated return, optional snap-switch.

20V/A20V/25V/A25V
The 2- and 2.5-inch (51 and 64mm) dial vacuum Swichgage®. Metal or polycarbonate case.

20DP/A20DP/25DP/A25DP
The 2- and 2.5-inch (51 and 64mm) dial differential pressure Swichgage®. Metal or polycarbonate case.

20BPG, 20BVG pressure & vacuum MurphyGage®
20BTG temperature MurphyGage®
'B-series' 2 inch (51mm) dial-only (no switch) instruments.

Exhaust pyrometers
Single and dual port pyrometers, thermocouple driven.

OPL pressure Swichgage®
SPL and 45TE temperature Swichgage® (info from www.fwmurphy.com)
4.5 inch (114mm) dial, Bourdon tube gauge and Swichgage® instruments.

PT167EX
4.5 inch (114mm) dial lead line pressure gauge and Swichgage®

45APE
4.5-inch (114mm) dial pressure Swichgage®.

SPL & 45TE (info from FW Murphy Production Controls at www.fwmurphy.com)
4.5 inch (114mm) temperature Swichgage®.

SDB (info from FW Murphy Production Controls at www.fwmurphy.com)
3.5 inch (89mm) dial bi-metallic temperature Swichgage®.

See also:

• Electric gauges, Swichgages & senders
• J1939/CAN gauges
• Fluid level Swichgages & maintainers
• Tachometers & hourmeters