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311 Series Pete's Plug II® and Accessories Sizes: 1/8" to 1/2"

For 310 Series Plugs click here

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 @ 200°F
1,000 psig @ - 20°F to 140°F
Blue Strap 1/4" mnpt
Brass Body & Nordel Core 500 psig @ 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 @ 200°F
1,000 psig @ - 20°F to 140°F 		Yello Strap & Two Grooves 1/4" mnpt

 

Click an Item Number below for the Web Store

Size

in npt

Length Body & Cap
Material		 Valve Core
Material

Shpg Wt

lbs

Item
Number		 Unit Price
Each

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 Readings are made, adjustments or test can be accomplished and when the probes are withdrawn, the two valves close.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.
in mm
1/8 M 1.25 31 Brass Neoprene 0.5 311-125-00 US $12.00
1/4 M 1.5 38 Brass Neoprene 0.5 311-100 US $7.20
1/4 M 1.5 38 Brass Nordel 0.5 311-110 US $7.20
1/4 M 3 76 Brass Neoprene 0.5 311-100-XL US $13.90
1/4 M 3 76 Brass Nordel 0.5 311-110-XL US $13.90
1/4 M 1.5 38 316 SS Neoprene 0.5 311-400 US $58.60
1/4 M 1.5 38 316 SS Nordel 0.5 311-410 US $58.60
3/8 M 1.5 38 Brass Neoprene 0.5 311-300 US $18.00
3/8 M 1.5 38 Brass Nordel 0.5 311-310 US $18.00
1/2 M 1.5 38 Brass Neoprene 0.5 311-700 US $11.50
1/2 M 1.5 38 Brass Nordel 0.5 311-710 US $11.50
1/2 M 3 76 Brass Neoprene 0.5 311-700-XL US $17.20
1/2 M 3 76 Brass Nordel 0.5 311-710-XL US $17.20

 

Pressure Gauge Probe Adapters
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.
Pressure Gauge Probe Adapters

pressure and temperature accessories

 

(All connections 1/4" FNPT)

(For 312-800-B Gauge)

Shpg Wt

lbs

 Item
Number		 Unit Price
Each
Adapter with 1/8" x 1 1/2" probe 0.5 312-500 US $25.90
Adapter with 1/8" x 3" probe (XL plugs) 0.5 312-500-XL US $52.90
Adapter with 1/16" x 1 1/2" probe (311-125-00) 0.5 312-510 US $34.90
Adapter (1/8" x 1 1/2" probe - all 316 SS) 0.5 312-520 US $61.90
   

Pressure & Temperature Gauges and Kits
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.
Bi-metal Pocket Testing Thermometers, 5" Stem, 0.156" (4 mm)
pressure and temperature accessories
Style Temperature Range Degree Division

Shpg Wt

lbs

 Item
Number		 Unit Price
Each
Analog with Recalibration 40°F to 160°F 2 0.5 312-600 US $69.60
Analog with Recalibration 25°F to 125°F 1 0.5 312-601 US $69.60
Analog with Recalibration 0°F to 220 °F 2 0.5 312-603 US $69.60
Digital, Cannot Recalibrate 40°F to 300°F 0.1 0.5 312-606 US $75.60

 

pressure and temperature accessories
Compound Pressure Gauge pressure and temperature accessories
Range Connection

Shpg Wt

lbs

 Item
Number		 Unit Price
Each
0-100 psi, 0-700 kPa 1/4" mnpt 1.0 312-800-B US $30.60
Pressure and Temperature Test Kits

 

pressure and temperature accessories

With Protective Carrying Case

Shpg Wt

lbs

 Item
Number		 Unit Price
Each
312-1500 Test Kit contains:
1 ea  312-601 25° to 125°F Thermometer
1 ea  312-603 0° to 220°F Thermometer
1 ea  312-800-B 0-100 psi, 0-700 kPa Pressure Gauge
2 ea  312-500 1/8" x 1 1 /2" Probe Pressure Gauge Adapter
 2 312-1500 US $353.00

312-1500-XL Test Kit contains:
1 ea  312-601 25° to 125°F Thermometer
1 ea  312-603 0° to 220°F Thermometer
1 ea  312-800-B 0-100 psi, 0-700 kPa Pressure Gauge
1 ea  312-500-XL 1/8" x 3" Probe Pressure Gauge Adapter

2

 

 US $353.00

Prices subject to change without notice

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