High Pressure - Conax Technologies...High Pressure High Pressure Thermocouples and RTDs Conax Technologies temperature sensor assemblies have proven their durability and reliability

High Pressure

High Pressure Thermocouples and RTDsConax Technologies temperature sensor assemblies have proven their durability and reliability in a variety of high pressure and high temperature environments. Our extensive knowledge of the science of temperature measurement and the physical properties of materials, enables our engineers to recommend the most effective solutions for your application needs.

Conax Technologies has the in-house equipment to proof pressure test and certify units for these extreme applications.

The following are examples of temperature sensors and fittings that Conax engineers have designed for specific customer applications.

Thermocouple & RTD Sensor Assemblies Compression Seal Fittings for Wires & Probes

High Pressure LDPE Reactor, Type J or K Thermocouple

High Pressure Special Limits of Error Type J Thermocouple

High Pressure RTD, 3-wire 100 Ohm Platinum

• Hastelloy C276 sheath and high pressure tube connector fitting

• Design conditions: 20,000 PSI @ 400°F (204°C)

• Proof Pressure Tested to: 30,000 PSI @ 68°F (20°C)

• For high pressure low-density polyethylene (LDPE) plants available with a carbide coated tip for additional wear resistance

• Proof Pressure Tested to: 80,000 PSI @ 68°F (20°C)

• With integral high pressure welded threaded fitting

• Proof Pressure Tested to: 30,000 PSI @ 68°F (20°C)

+1 716 684 4500 | +1 800 223 2389 | [email protected]

Bulletin 6073, Rev B ©2018 Conax Technologies 1/18

Conax Technologies manufactures high pressure seals for electrodes, instrument signal wires and temperature sensor leads. High pressure seals are designed for installation onto the pressure vessel wall using threaded mounting configurations. A 1/2” NPT thread or ‘B Cap’ can be added to the HEGPK and HPPL assemblies to allow for mounting to a terminal box or other type of

enclosure. These assemblies feature body and caps constructed from high strength 316SST.

These products are for high pressure applications; please contact Conax directly if you need to seal on other elements within different environments.

The following are examples of typical fittings or feed-throughs we offer for high pressure applications.

• Single Piece PEEK™ Insulator/Sealant

• For high pressure/voltage applications

• Up to 7,700 PSI (531 Bar) @ 68°F (20°C)

• Voltage Rating: 8000 VDC

• Amperage to 200 Amps

• Available with or without conductor

• Available in .125", .187", .250", .375" & .500" diameter conductors

• Up to 20,000 PSI (2067 Bar) at 68°F (20°C)

• Conductor available in copper, stainless steel, or nickel

• Voltage Rating: 2000 VDC

• Amperage Rating to 60 Amps

• Seals on Kapton® insulated wire

• Up to 30,000 PSI (2069 Bar) at 68°F (20°C)

• Available with 24 & 26 copper or 24 AWG Type K thermocouple wire

• Low pressure offerings up to 15,000 PSI

• Medium pressure offerings up to 20,000 PSI

• High pressure offerings up to 60,000 PSI

For more information, request bulletin 6068.

High Pressure Compression Seal Fittings

High Performance Electrode Gland (HEGPK)

High Pressure Sealing Electrode Gland (HPEG)

High Pressure Sealing Insulated Wire Gland (HPPL)

MK with High Pressure Mount

Like the EGT Gland, Conax Technologies HEGPK Glands electrically and/or thermally insulate single electrodes, tubes or temperature sensors for use in vacuum furnaces, liquid level probes, transformers, environmental chambers, power leads and more. These bare electrical feedthroughs also seal against gases and liquids and resist electrode (also known as conductor) movement under pressure. The HEGPK Gland di ers from the EGT gland in that the single piece insulator/sealant is manufactured from PEEK™, which is recognized as one of the highest performing engineered thermoplastic materials currently available.

The HEGPK Glands provide several distinct advantages over Conax’s EGT Gland:

• HEGPK Glands have higher pressure ratings at room temperature (typically in excess of 250%), as compared to Conax’s EGT Gland.

• HEGPK Glands also have improved sealing performance at elevated temperatures, as compared to EGT glands.

HEGPK gland bodies with NPT threads or SAE threads are constructed from 303SST standard. Weld-neck style glands are constructed from 316SST standard. Caps and followers for all styles are constructed from 303SST standard. Many optional materials are also available. Cap Style A o ers a process mounting thread only. Cap Style B provides threading on both ends for attachment to conduit or terminal heads. Please consult a Conax Technologies sales engineer for custom needs.

Conductors are available in Copper, Nickel and 303SST. Use of Nickel rather than Copper is recommended in oxidizing atmospheres. Custom conductors, such as nickel-plated copper, are also available. Please consult the factory.

• Temperature Range: 0°F to 480°F

• Pressure Range: Vacuum to 7,700 PSIG (531 bar)—see Pressure Ratings Chart

• Voltage 8000 VDC

• Amperage to 200 amps

• Supplied with or without conductor

AccessoriesThe replaceable single piece insulator/sealant permits repeated use of the same fi tting. Conductors can be easily assembled or replaced in the fi eld. To replace the insulator/sealant or conductor, simply loosen the cap, replace necessary items, relubricate and retorque the cap.

Glands are supplied factory lubricated. When reused, the glands should be relubricated to maintain the published pressure ratings. If glands are cleaned prior to assembly, they should be relubricated. On weld models, the heat from the welding process may destroy the lubricant. These models must also be cleaned and relubricated prior to use. See page 103 in Catalog 5001 for information on our lubrication kit.

To order a replacement insulator/sealant, order RS - (Gland) - (Diameter)

Example : RS-HEGPK-125

With Single PEEK™ Insulator (up to 8,000 Volts)

High Performance Electrode Seal Fitting

Catalog Numbering System

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conaxtechnologies.com

2300 Walden Avenue, Buffalo, New York 14225 +1 800 223 2389(P) | +1 716 684 7433(F) [email protected] Made in U.S.A.