Temperature & Pressure Plugs and Accessories, Sizes: 1/4" TO
1/2", 310 Series
- Quickly take a temperature or pressure reading
- Self closing Neoprene or Nordel valves after probe removed
- Cap to protect and additional seal
- 1/8”, ¼”. & ½” NPT pipe connections
- For 1/16” & 1/8” probes
- Brass or Stainless-Steel housing
Neoprene Valve resists waxes, fats, oils, greases,
petroleum products, and most refrigerants.
Nordel Valve is an ethylene-propylene based synthetic
rubber for hot and cold water, low steam, detergents, phosphate
esters, ketone, alcohols, and glycols.
This information is a general guide and product should be tested
for applicability under actual conditions.
How to Operate:
These plugs are permanently installed in the line at recommended test
points. The cap protects the valve and provides an additional seal.
After the cap has been removed, either a test thermometer or a gauge
adapter with the proper pressure gauge can be inserted through the
two, self-closing valves in the plug. Readings are made, adjustments
or test can be accomplished and when the probes are withdrawn, the two
valves close. The protective cap is then reinstalled. Tests should be
made as quickly as possible since the valve reseal time is dependent
upon time of insertion, time, and pressure. Slower valve reseal time
can be expected at lower temperature and lower pressures.
Features:
- Available in 1/4" and 1/2" NPT sizes
- Available in long length
- Brass body material for non-corrosive service
- Pressure limits to 1000 psi depending on application
- Neoprene core (red cap) for temperature range of 0-200°F, for use
with natural gas and petroleum products
- Nordel core (blue cap) for temperature range of 0-275°F, for use
with hot and chilled water systems
- Valve core is self-sealing with pressure cup for superior sealing
protection
- Tested by an independent lab indicates no leaks at high or low
pressure
Pete's
Plug Instructions
Pete's
Plug Chemical Compatability
310 Series Pressure and Temperature Plugs
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Cap retaining straps are standard on all brass plugs.
Pressure Gauge Probe Adapters
The pressure gauge adapter has a probe constructed of 304 stainless
steel. The probe is 1/8" in diameter and extends 2" (1 1/2" exposed
probe) on the 312-500 adapter and 3 1/2" (3" exposed probe) on the
312-500-XL adapter. The 1/8" diameter probe operates in either the
1/4" or 1/2" Plug. The 312-500-XL Pressure Gauge Probe Adapter will
operate in any of the Plugs. Browse pressure gauge accessories below.
Pressure Gauge Probe Adapters
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Temperature Gauges
The analog thermometers are constructed of stainless steel, has a 1
3/4" dial and accuracy within 1/2% over the entire scale.
Recalibrations is by turning the hex nut on the back of the dial case
with stem immersed in a known temperature bath. Digital thermometers
have the same specifications as above but can not be recalibrated in
the field.
Pressure Gauges
The 3 1/2" pressure gauge plug has an ASME B accuracy of 3/2/3% (2% in middle of scale). It has an adjustable red altitude pointer with a psi
and feet of water scale.
Bi-Metal Pocket Testing Thermometers, 5” Stem, 0.156” (4mm)
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Compound Pressure Gauges
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Pressure and Temperature Test Kits
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