Type 6G6/6G1

> Clean Service / Hygienic Safety valves with Stainless Steel body
> Enclosed discharge valve with Tri-Clamp inlet connections

Product Description

Type 6G6/6G1

Enclosed Discharge Safety Relief Valve for Compressed Air & Gases – Clean Service. Available with either 10 or 13mm nominal bore


Example Applications:
  • Compressed air or gas
  • Food production plants
  • Hygienic applications
  • Pressure vessels
  • Medical gases
  • Technical gases
  • Steam systems



View or Download Datasheet

Technical Information

Technical Information for Type 6G6 / 6G1

  • Min. Pressure
    0.32 bar (4.64 psi)
  • Max. Pressure
    55.20 bar (800.40 psi)
  • Temperature Range
    -15°C to 200°C (subject to seal material)
  • Inlet Connection(s)
    1/2" to 1" Tri-clamp
  • Outlet Connection(s)
    3/4 to 1" BSP or NPT
  • Flow Rate
    Refer to Flow Tables on the datasheet
  • Materials
    St. Steel
  • Seal Materials
    Ethylene Propylene / Perfluoroelastomer
  • Test Certification
    Included - supplied Free of charge
Flow Rates:
  • See Datasheet


  • Stainless Steel
  • Process Contact Surface
  • In accordance with ASME BPE-2005 Table SF-5.
  • Surface designation Ra Max 15 µinches, 0.4 µm, Electropolished.
  • Other Surfaces
  • Not greater than 60 µinches, 1.5 µm.

Elastomer soft sealing specifically developed for food & pharmaceutical industries, compliant to:

  1. FDA 21 CFR 177.2600
  2. United States Pharmacopoeia (USP) Class VI
  3. SP3A Sanitary Standards for Multiple Use Rubber Dairy Equipment No 18-03


  • The maximum permissible built-up back pressure is 10% of the set pressure
  • Stable operation on flows down to 50% of valve-rated capacity
  • Relieving pressure is generally set pressure +10% (see datasheet for more information)
  • Reseating pressure is set pressure -10% (0.3 bar minimum)
  • Below 1.55 bar, PED certified only
  • Tri-Clamp® compatible generally in accordance with ASME BPE 2005 & BS 4825-3


  • Designed in accordance with BS EN ISO-4126-1 & -7
  • PED 2014/68/EU (CE)
  • PE(S)R UK SI 2016 No. 1105 (UKCA)
  • CRN
  • EAC


Engineered for Reliability

More than just sturdy hardware, pressure relief valves incorporate meticulous design and rigorous testing to ensure dependable performance under the most demanding pressure situations.


View or Download the Type 6G6 / 6G1 Datasheet

Full Technical Information - Including Flow Rates

View or Download the Type 6G6 / 6G1 Datasheet

Seetru offers a wide range of downloadable datasheets for our products, including safety relief valves, liquid-level gauges, and sight glasses.  These datasheets provide detailed information on the technical specifications, features, and applications of Seetru products.  They are an essential resource for engineers, designers, and other professionals who need to select the right Seetru products for their specific needs.


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