High-Temperature Media Pressure Transmitters

-- Steady & Reliable Manufacturer --

Product Overview

Processes involving high-temperature media, such as steam, hot oil, molten plastic, or boiler systems, require specialized pressure measurement devices. Our High-Temperature Media Pressure Transmitters utilize cooling elements, elongated necks, or liquid-filled capillary assemblies to dissipate heat and protect the sensitive electronics and sensing element from thermal damage. This design ensures accurate, stable pressure output even when the process connection point is operating at temperatures up to 300∘C and beyond.

Key Features

Integrated cooling or thermal isolation elements.
Suitable for continuous operation up to 300∘C or higher.
Maintains signal stability despite high process temperature.

Technical Specification Sheet

Parameter	Detail
Pressure Range	0-10 bar up to 0-1000 bar (Specific High Temp ranges)
Media Temperature	Up to 300∘C (Standard); Up to 500∘C (Specialized)
Ambient Temp Limit	−40∘C to 85∘C (Transmitter Electronics)
Output Signal	4-20 mA (HART optional)
Wetted Parts Material	Stainless Steel 316L (standard); Hastelloy (optional)
Cooling Mechanism	Integrated Cooling Element or Cooling Tower/Neck
Process Connection	G1/2, NPT1/2 (Often with elongated neck)

Typical Use Cases

Steam Lines: Measuring pressure in superheated steam distribution systems.
Boiler Feedwater: Monitoring high-pressure and high-temperature pump discharge.
Plastics Extrusion: Melt pressure measurement in polymer processing (via melt sensors).
Thermal Oil Systems: Monitoring hot oil circulation pressure.
Geothermal Power: Sensing pressure in high-temperature subsurface loops.

Competitive Benefits

Reliable Protection: Effective heat dissipation ensures the longevity and accuracy of the internal electronics.
Accuracy Assurance: Minimizes temperature-induced zero-shift and drift common in non-compensated instruments.
Robust Sealing: High-temperature housing sealants prevent vapor intrusion into the electrical compartment.
Process Uptime: Designed to prevent thermal failure, reducing unexpected downtime in critical, high-heat processes.

Payment and Shipping Details

We require a 30% T/T deposit due to the specialized nature of the components, with the remainder due upon completion. Shipping terms are typically FCA (Free Carrier). The lead time for high-temperature media transmitters is approximately 20-30 days, including necessary thermal cycling and stress testing before final calibration.

Frequently Asked Questions

Q: What is the primary method used to protect the electronics?
A: We use a thermal bridge (elongated, hollow neck) between the process connection and the electronic housing. This air-filled space allows heat to dissipate into the ambient environment before reaching the sensitive internal components.

Q: Is an external heat sink required for my installation?
A: The integrated cooling neck is usually sufficient. However, for continuous operation near the absolute temperature limit, minimizing high ambient temperatures or adding a passive cooling fin may be beneficial.

Q: Can I use this transmitter on cryogenic (very cold) applications as well?
A: Our standard models are suitable for a wide range, but extremely low temperatures (cryogenic) require different compensation methods and wetted materials. Please consult our specification for dedicated cryogenic sensors.

Message Feedback

High-Temperature Media Pressure Transmitters Manufacturers

Wuxi Huihua Special Instrumentation Co., Ltd. was established in December 2001, the registered capital is 5 million yuan, the existing staff of more than 50 small and medium-sized joint-stock enterprises.
The company specialises in the production of various types of special instruments, alternative to the localisation of imported instruments.To seismic pressure gauge, seismic electric contact pressure gauge, stainless steel pressure gauge, diaphragm corrosion-resistant pressure gauge, marine pressure gauge and other series as the main products. On the basis of field instruments, we have developed various kinds of pressure transmitters, pressure controllers, digital pressure gauges and so on. There are more than 30 series and 3000 specifications. Products are widely used in petroleum, chemical, paper, metallurgy, mining, chemical fibre, electric power, food, environmental protection, rubber and plastic, hydraulics and many other industries, and more than 2,000 domestic customers to establish a friendly relationship with the national large and medium-sized enterprises to establish a good partnership, won the majority of users praise, and set up a corporate brand image.