+381 (0)11 21 97 392

HON 850

HON 850 Variflo™ enables highly safe and accurate gas transmission and distribution of natural, non-aggressive gases such as nitrogen, carbon dioxide and propane, and other gases on request. Ideal for offtake stations, power plants and industrial facilities, it can operate under a wide range of pressure conditions.

HON 850 Variflo
Honeywell safety devices/Safety Relief Valves

Features include:

-Wide range of operating pressures
-High regulating accuracy
-Diaphragm valve/grid plate design with reduced flow options available
-Few parts, easy to maintain, quiet operation
-Pilot options include HON 630, HON 640a and S600
-Optional relief valve version using RMG 642 pilot
-Suitable for natural, non-aggressive and manufactured gases; nitrogen, carbon dioxide and propane; and other gases upon enquiry
-CE registration according to PED
-Max. inlet pressure pu max: 100 bar
-Min. inlet pressure pu min: 3 bar
-Outlet pressure range Wd: 0.15 bar to 40 bar
-Minimum pressure drop: 0.5 bar
-Class of lock-up pressure zone: SZ 2.5
-Max. differential pressure: Class 150: 19 bar, Class 300: 50 bar, Class 600: 70 bar
-Temperature range: 20 to 60 °C
-Pipe sizes: DN 50, DN 80, DN 100
-Connection (optional): DIN flange according to PN 16, Class (ANSI) 150, Class (ANSI) 300, Class (ANSI) 600

All mechanical components of this device are without potential ignition sources and/ or hot faces. They are not subject to ATEX 95 (94/9/EC). All electronic accessories, on the other hand, meet ATEX requirements.


Honeywell announced it has completed its acquisition of the Elster division of Melrose Industries plc, a leading provider of thermal gas solutions for commercial, industrial, and residential heating systems and gas, water, and electricity meters, including smart meters and software and data analytics solutions. Elster also manufactures gas metering and pressure control devices, as well as total solutions for the gas transmission and distribution industry. After the acquisition, Honeywell secured it's position as world's leading company in providing solutions and products in oil & gas industry. According to Fortune ranking, it is one of the 100 largest companies in the world. Immense portfolio, high quality products and competative prices highlight Honeywell above it's competition.

Honeywell Process Solutions (HPS) is a global leader with over 40 years of experience delivering process automation and control solutions that help industrial customers run their operations safely, reliably, efficiently and sustainably through innovative technologies, services and domain expertise. With more than 12,000 employees around the world, HPS serves customers in more than 125 countries in the oil & gas, refining, petrochemicals, pulp & paper, specialty chemicals, pharmaceuticals, industrial power, and mining & minerals industries.

Official web presentationURL dokument