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Safety Relief Valves

HON 835

HON 835 is a Type-B direct-acting safety relief valve (SRV) according to DIN 33821. It is ​primarily used to relieve gas leakage in gas pressure regulators to prevent the SSV from being actuated by accident.​

Overview
Features and Benefits:
  • Function Class B
  • Simple construction, easy to maintain
  • Installation irrespective of position
  • High response accuracy
  • Suitable for non-aggressive gases, other gases on enquiry
  • CE registration according to PED
  • Max. admissible pressure PS: 25 bar
  • Max. operating pressure pmax: up to 25 bar
  • Outlet pressure range: Wd 5 mbar to 2 bar
  • Valve seat Ø
    • 3 mm (measuring unit 0) 
    • 25 mm (measuring units 1 and 2)
  • Connection
    • Inlet and outlet: 
      • PN 5: internal thread G 1 
      • PN 16 and 25: Pipe connections according to DIN EN ISO 8434-1 (DIN 2353) 
    • For pipe sizes: 
      • 12 mm (measuring unit 0) 
      • 28 mm (measuring units 1 and 2)
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.
 
Specifications

Environmental Conditions

  • Ambient Temperature Range
    • -15 to +60 deg C
  • Setting Range
    • 0.03 to 2 bar
  • Maximum Operating Pressure
    • Up to 25 bar kilopascal

Mechanical & Physical Properties

  • Valve Seat Diameter
    • 3 mm (measuring unit 0), 25 mm (units 1 and 2)

Processing & Performance Metrics

  • Maximum Admissible Pressure
    • 25 bar

Standards & Certifications

  • Explosion Protection
    • They are not subject to ATEX 95 (94/9/EC). All electrical components used with this device fulfill the ATEX requirements
  • Approvals
    • DIN 3381, SEP according to PED

Technical Specifications

  • Connection Type
    • PN 16 and PN 25: Screw connections (DIN 2353), Pipe dia. 12 mm (unit 0), 28 mm (unit 1 and 2)
    • PN 4: Internal thread G 1

Material Specifications

  • Body Material
    • Cast Aluminum Alloy

Applications & Compatibility

  • Applications
    • For natural gas (DVGW G 260), other gaseous media on request
    • Leakage relief valve in gas pressure regulating stations

Environmental Conditions

  • Ambient Temperature Range
    • -15 to +60 deg C
  • Setting Range
    • 0.03 to 2 bar
  • Maximum Operating Pressure
    • Up to 25 bar kilopascal

Mechanical & Physical Properties

  • Valve Seat Diameter
    • 3 mm (measuring unit 0), 25 mm (units 1 and 2)

Processing & Performance Metrics

  • Maximum Admissible Pressure
    • 25 bar

Standards & Certifications

  • Explosion Protection
    • They are not subject to ATEX 95 (94/9/EC). All electrical components used with this device fulfill the ATEX requirements
  • Approvals
    • DIN 3381, SEP according to PED

Technical Specifications

  • Connection Type
    • PN 16 and PN 25: Screw connections (DIN 2353), Pipe dia. 12 mm (unit 0), 28 mm (unit 1 and 2)
    • PN 4: Internal thread G 1

Material Specifications

  • Body Material
    • Cast Aluminum Alloy

Applications & Compatibility

  • Applications
    • For natural gas (DVGW G 260), other gaseous media on request
    • Leakage relief valve in gas pressure regulating stations
  • Ambient Temperature Range : -15 to +60 deg C
  • Valve Seat Diameter : 3 mm (measuring unit 0), 25 mm (units 1 and 2)
  • Setting Range : 0.03 to 2 bar
  • Maximum Operating Pressure : Up to 25 bar kilopascal
  • Maximum Admissible Pressure : 25 bar
  • Explosion Protection : They are not subject to ATEX 95 (94/9/EC). All electrical components used with this device fulfill the ATEX requirements
  • Connection Type : PN 16 and PN 25: Screw connections (DIN 2353), Pipe dia. 12 mm (unit 0), 28 mm (unit 1 and 2)|PN 4: Internal thread G 1
  • Body Material : Cast Aluminum Alloy
  • Approvals : DIN 3381, SEP according to PED
  • Applications : For natural gas (DVGW G 260), other gaseous media on request|Leakage relief valve in gas pressure regulating stations
Brochure
Name
Description
File Size
Date
Size
HON 835 is a Type-B direct-acting safety relief valve (SRV) according to DIN 33821.
application/pdf 536.28 KB
4/28/2021
536.28 KB
Name
Description
File Size
Date
Size
HON 835 is a Type-B direct-acting safety relief valve (SRV) according to DIN 33821.
application/pdf 536.28 KB
4/28/2021
536.28 KB
Name
Description
File Size
Date
Size
HON 835 is a Type-B direct-acting safety relief valve (SRV) according to DIN 33821.
536.28 KB
4/28/2021
Name
Description
File Size
Date
Size
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