The Type 520 is built on Huba Control's thick-film sensing technology inside a hermetically welded, seal-free stainless steel measuring cell — eliminating the O-ring or profile-seal leak path found in many transmitter designs. It covers relative pressure from -1 to 1000 bar, is compatible with liquids, gases and refrigerants including ammonia, and carries EN 50155 / EN 45545-2 railway approval alongside ATEX, IECEx and UL certifications — making it suited to industrial, HVAC/refrigeration and safety-critical railway applications.
Conventional pressure transmitters seal the sensing element to the process connection with an O-ring or profile seal — a joint that can degrade over time, especially with aggressive media, high cycling, or extreme temperatures, creating a potential leak path. The Type 520's measuring cell is instead hermetically welded shut, removing that seal entirely. Combined with a thick-film sensing element rated to 1000 bar, this makes it a strong fit for high-pressure hydraulic systems, refrigerant circuits (including ammonia, which is aggressive toward many elastomer seals), and any application where seal failure is not an acceptable risk.
IJ Instruments is a reliable source for Huba Control pressure transmitters in Tamil Nadu and pan India — share your pressure range, medium and any approval requirement (railway, ATEX, drinking water) and we'll help confirm the right configuration, with free technical consultation before you order.
Technical Overview
Key technical data from the manufacturer's datasheet — share your exact requirement and we'll confirm the precise order code for your application.
Configuration Options
With or without pre-fitted cable (1.5 / 2.0 / 3.0 / 5.0 m), IP67, quick on-site cable assembly with fast cable gland.
Industrial standard connector, IP65.
IP67-rated circular connector for PLC and panel-mount integration.
Automotive and OEM-style connection options also available.
7/16-20 UNF (with or without Schrader valve), 1/2-14 NPT, G 1/4.
G 1/4, G 1/2, G 1/8, M10x1, M20x1.5, R 1/4 and more — sealed at front or back, with combi-manometer options.
Where It's Used
Hydraulic systems, high-pressure pumps and process lines up to 1000 bar.
Compatible with common refrigerants and ammonia for chiller, cold-storage and industrial refrigeration plant.
EN 50155 / EN 45545-2 approval for brake, HVAC and pneumatic systems on railway vehicles.
NSF/ANSI 61 and WRAS-approved variants for potable water systems.
ATEX / IECEx intrinsically-safe versions for Zone-rated hazardous locations.
Rupture pressure rated up to 2500 bar suits demanding test and validation applications.
Why IJ Instruments
Share your pressure range, medium and any railway/ATEX/drinking-water approval requirement — we'll confirm the exact order code.
We help you access genuine Huba Control transmitters in India without the hassle of sourcing directly from Switzerland.
Datasheets, calibration certificates and approval documents to support your procurement and engineering sign-off.
Coordinated sourcing and delivery to plants, OEMs, railway suppliers and panel builders across India.
FAQs
A welded, seal-free measuring cell removes the O-ring or profile-seal joint that can degrade under repeated pressure cycling or aggressive media — reducing the risk of leakage over the transmitter's service life, which matters more as pressure and duty cycle increase.
Yes, the Type 520 is compatible with common refrigerants including ammonia, making it suitable for industrial refrigeration and cold-storage applications — confirm your specific medium with us during consultation.
EN 45545-2 is the European fire protection standard for railway vehicles; a component holding this approval, alongside EN 50155, has been assessed as suitable for use in railway rolling-stock applications.
IJ Instruments is a dealer and reliable sourcing partner for Huba Control pressure transmitters in India, supporting product selection, technical consultation and sourcing.
Share your pressure range, medium and approval requirement for a free technical consultation.