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Home > Temperature & Pressure Pete's Plug > 311 Series Pete's Plug II and Accessories

Temperature & Pressure Pete's Plug II and Accessories Sizes: 1/8" to 1/2", 311 Series

For 310 Series Plugs click here

310/311-Series Pressure & Temperature Plugs Operating Instructions

Take pressure or temperature readings quickly without leaving costly gauges on the line.

petes plug cross section Pete's plug cross section

Applications:

Pete's Plugs are well suited for most plant and pipeline systems including hot and chilled water systems, heat exchangers, pumps, differential readings, air, gas lines, and many other applications. The XL Pete's Plug will allow you to insulate the test point without adding extra fittings.

Valve Materials:

Neoprene is a chloroprene based synthetic rubber and is resistant to deterioration from waxes, fats, oils, greases, petroleum products, and most refrigerants. Nordel is an ethylene-propylene based synthetic rubber for hot and cold water, low steam, detergents, phosphate esters, ketone, alcohols, and glycols. It is not suitable for petroleum products. Neoprene and nordel are proprietary materials of others and assume no liability for results obtained or damages incurred through the application of this information. The information is intended simply as a guide.

Valve & Core
Material
Maximum Pressure &
Temperature
Strap Color & Body Material Code Valve Body Connection
Brass Body & Neoprene Core 500 psig @ 32°F to 200°F
1,000 psig @ - 20°F to 140°F
Blue Strap 1/4" mnpt
Brass Body & Nordel Core 500 psig @ 32°F to 275°F
1,000 psig @ - 20°F to 140°F
Yellow Strap 1/4", 3/8", 1/2" mnpt - Brass
316 Stainless Steel Body & Neoprene Core 500 psig @ 200°F
1,000 psig @ - 20°F to 140°F
Blue Strap & Two Grooves 1/4" mnpt
316 Stainless Steel Body & Nordel Core 500 psig @ 275°F
1,000 psig @ - 20°F to 140°F
Yellow Strap & Two Grooves 1/4" mnpt

Pete's Plug II
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Operating Instructions

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 Pete's Plug II. Readings are made, adjustments or test can be accomplished and when the probes are withdrawn, the two valves close.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. Cap retaining straps are standard on all brass plugs.

Installation Instructions:

Simply install a Pressure & Temperature Plug into 1/4" or 1/2" NPT fitting to receive either a 1/16" or 1/8" OD temperature & pressure probe.

Pressure Gauge Probe Adapters
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pressure and temperature accessories

The pressure gauge adapter has a probe constructed of 304 stainless steel. The probe is 1/16" or 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", 3/8" or 1/2" Plug. The 312-500-XL Pressure Gauge Probe Adapter will operate in any of the Plugs. The 1/16" Pressure Gauge Probe Adapter will only operate on the 311-125-00 1/8" Pete's Plug.

Bi-metal Pocket Testing Thermometers, 5" Stem, 0.156" (4 mm)
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analog
digital

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.

Compound Pressure Gauges
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pressure and temperature accessories

The 3 1/2" pressure gauge 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.

Pressure and Temperature Test Kits
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pressure and temperature accessories

U.S. Patent No. 5079962 Canadian Patent No. 981192. Patent pending in United States and other countries. All patents are sole property of Equipment Company, Inc.