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  • Home
  • Products
    • Calibration Equipment >
      • Analogue Test Gauges
      • Comparators, Pressure Sources & Dead Weight Testers >
        • Automatic & Digital Pressure Calibrators
        • Dead Weight Testers
        • Pneumatic Hand Pumps
      • Custom Test Equipment
      • Digital Pressure Calibrators
      • Digital Temperature & Process Calibrators
      • Temperature Calibrators
    • Control Panels, Process Controllers & Data Loggers >
      • Control Panels & Automated Test Stations | GNW Instrumentation, Southport, UK
      • Data Loggers & Recorders
      • Process Controllers & Panel Meters
    • Electrical Test Equipment >
      • Clamp Meters
      • Earth Loop Testers
      • Insulation & Continuity Testers
      • Multifunction Testers
      • Multimeters
      • PAT Testers
      • Power & Disturbance Analysers >
        • C.A 8331 Power Analyser
        • C.A 8333 Power Analyser
        • C.A 8336 Power Analyser
      • RCD / RCCD Testers
    • Flow Meters & Switches >
      • Batching Meters
      • Magnetic Flow Meters >
        • induQ VMI
        • induQ VMM
        • induQ VMZ
      • Oval Gear Flow Meters
      • Positive Displacement Flow Sensors
      • Ultrasonic Flow Meters
      • Variable Area / Rotameters
      • Vortex Flow Sensors >
        • VVX Series
      • Water Meters
    • Laser Scanning, CMM's & Metrology
    • Measuring & Tool Room
    • Pressure >
      • Gauges >
        • All Stainless Steel
        • Differential
        • General Purpose
        • Hygienic & Diaphragm
        • Industrial
        • Low Pressure Capsule
        • Magnehelic
        • PET / Plastic Case
        • Safety Pattern
        • Subsea, Caisson & Dive Panel
        • Test Gauges
      • Recorders & Data Loggers
      • Transmitters & Transducers >
        • Automotive
        • Differential
        • Flush Diaphragm
        • High Temperature
        • HVAC
        • Industrial
        • Miniature
        • Submersible Level
    • Scales & Weighing Instrumentation
    • Tank Contents & Level >
      • Digital Tank Contents Systems
      • Hydrostatic Tank Contents Gauges
      • Level Alarms
      • Level Sensors & Switches
      • Pump-To-Read Tank Contents Gauges
      • Sight Glasses
    • Temperature >
      • Control Panels
      • Dial Thermometers
      • Digital Industrial Thermometers
      • Hand Held Thermometers
      • Pockets & Thermowells
      • Recorders & Data Loggers
      • Temperature Controllers
      • Thermocouples & RTD's
  • Services
    • Calibration
    • Custom Design & Manufacturing
    • Instrument Hire & Set Props
    • Medical Equipment Calibration
    • Repair
  • Web Shop
  • Instrument Track Calibration Database
  • About Us
  • Finance
  • Contact
  • Sitemap

Pockets & Thermowells

The use of pockets is recommended where the removal of a temperature probe without a pocket would require process shut down or drainage of the system.

GNW's thermowells are economical but robust and long lasting products so sensors can be left in place. Pockets also allow sensors to be removed and replaced without causing unnecessary shut downs and expensive down time due to having to drain tanks and pipe lines.

We manufacture thermometers with internal or external threads which can also be combined with neck tubes to bridge thicker insulating layers. Protection tubes made of various materials are available. SIKA thermometer protection tubes are based on the DIN standard 43772. This results in the various protection tube designs and shapes.
​
We manufacture pockets and thermowells for use in wide range of industries and applications. We produce 
solid-material conduits for use with our diesel engine dial thermometers and diesel engine dial remote reading thermometers. They are especially suited for use in the exhaust gas area on large marine engines. They can also be manufactured to suit thermocouples and other sensors if necessary
Our thermowell range includes protection tubes made of several pieces being soldered or welded together and protection tubes turned from a single piece. The protection tubes are either screwed or welded into position.

Materials include:
  • Stainless Steel
  • Carbon Steel
  • Brass
  • Hastelloy
  • Monel
  • Titanium
  • Alloy 600
  • Duplex and Super Duplex stainless steels  

​A variety of coatings can also be provided such as PTFE, FEP, Gore Fluroshield, Tantalum, etc.

One off or ‘odd-ball’ pockets, can be supplied to customers own specifications. Threaded, sanitary or flanged connections are all available in any size.
GNW Instrumentation , 101a Sefton Street, Southport , Merseyside, PR8 5DD
Tel: +44 (01704) 536 010
sales@gnw.co.uk