ASME Section VIII compliant, Created and Designed in US

 The SSRV Sanitary Safety Relief Valve is designed to relieve over-pressure upset in hygienic and aseptic process and clean utility systems. The SSRV is designed to be manually set to open at a predetermined pressure to protect pressure vessels and other equipment from being subjected to pressures that exceed their design limits. 

Applications:

  • Bioreactor - Fermenter vessel and vessel jackets 
  • Formulation and other Pharma process vessels 
  • Clean Air I Gas distribution systems for point of use distribution 
  • Clean steam systems 
  • WFI and USP PW vessels 
  • Any hygienic or aseptic process vessel or system 
Features & Benefits
  • National Board certified to ASME VIII 
  • High cleanability: L/D < 1.5 
  • Standard surface finish ASME BPE SF1, 20 Ra μin (0,5 Ra μm) is standard. ASME BPE SF5 and SF4 15 Ra μin (0,4 Ra μm) optional. Electropolished optional 
  • FDA and USP Class VI seats, o-rings and bellows seal 
  • Bellows seal isolates process from valve internals when valve is open or closed on 83 and 83X Series 
  • ASME BPE Tri-Clamp and Tube weld end connections are standard. NPT connections available on SSRV-81 Series
  • ASME SA479 316L, AL6XN, Hastelloy C-276 are standard
  • Steriflow Premium Cleaning Available – consult factory for details 
Specifications

SSRV-81 Specifications

Available Connection Size and Type 

  • Inlet: – 1/2″ – 1″ MNPT, FNPT – 1/2″ – 1″ ASME BPE Tri-clamp 
  • Outlet: – 1/2″ – 1″ FNPT – 1/2″ – 1″ ASME BPE Tri-clamp 

Body and Wetted Trim Materials 

  • Standard – ASME SA479 316L (UNS 31603), AL6XN®, Hastelloy®C-22 
  • Optional: other materials available ASME BPE Tri-clamp 

Wetted Seat and O-Ring Material 

  • FDA and USP Class VI compliant elastomers:
    – EPDM, rated to 300°F
    – Kalrez® FFKM rated to 450°F 
  • FDA compliant elastomers:
    – Buna rated to 230°F 

Available Set Point Range SSRV-81V Series 

  • 13 – 20 psi* 
  • 20 – 26 psi 
  • 26 – 45 psi 
  • 45 – 64 psi 
  • 64 – 102 psi 
  • 102 – 145 psi 
  • 145 -232 psi 

SSRV-81 Series 

  • 232 – 377 psi 
  • 377 – 500 psi 

* Valves with set points below 15 psi do not require ASME UV stamp 

Body Pressure/Temperature Rating: 

  • 550 psi @ 450°F 

SSRV-83X Specifications

Available Connection Size and Type 

  • Inlet: – 1″ ASME BPE Tri-clamp 
  • Outlet: – 1 -1/2″ ASME BPE Tri-Clamp 

Body and Wetted Trim Materials 

  • Standard – ASME SA479 316L (UNS 31603), AL6XN®, Hastelloy®C-22 
  • Wetted O-Ring Material 

Elastomers are all FDA and USP Class VI compliant:
– EPDM, rated to -49°F to 302°F
– Kalrez® FFKM rated to 32°F to 450°F 

Bellows Process Seal Material 

Elastomers are all FDA and USP Class VI complaint
– EPDM rated to -49°F to 302°F 

Body Pressure/Temperature Rating: 

  • 255 psi @ 450°F steam/gas/liquid 

Available Set Point Range 

  • 12 – 18 psi* 
  • 18 – 26 psi 
  • 26 – 36 psi 
  • 36 – 47 psi 
  • 47 – 65 psi 
  • 65 – 96 psi 
  • 96 – 142 psi 
  • 142 – 232 psi
    * Valves with set points below 15 psi do not require ASME UV stamp 
Approvals

 National Board certified to ASME VIII 

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