F7000/F8000 Pilot Operated Safety Relief Valve
IACS Approved Offshore/Marine Class
FEATURES
- Choice of modulating or snap acting, flowing or non-flowing pilot
- Soft seated (Elastomer or Plastic)
- Backflow preventer & field test connection (quick-connect)
- Full bore (F7000) or reduced bore (F8000) orifice
- Full piston lift @ set pressure
- Pilot vents to process (F100, F300, F500) or atm. (F200)
- Leak tight seating and re-seating
- Integral flange design
- Integral nozzle (SS), 316/316L corrosion resistant trim
APPLICATIONS
- Ambient or cryogenic fluids
- Chemical processing
- High cycle rates / long service life
- Minimal product loss importance
- Operation close to set point with zero leakage required
Service Envelope
| Connection Sizes Custom sizes & dual outlet bodies available on request | 1” x 2” - 12” x 16” (25mm x 50mm - 300mm x 400 mm) |
| Set Pressure Ranges See F7000/8000 Catalog for orifice specific ratings | 15 – 6,000 psig (1.03 - 413 barg) |
| Temperature Ranges | -423 to 525°F (-252 to 274°C) |
| Orifice Area Range | .134 – 111.87 in2 (.86 – 72174 mm2) |
| End Connections Custom types available on request | Standard: Female NPT (1” x 2” & 1.5” x 3” size only) Integral ASME RF Flanged (up to 2500# inlet) Specials: DIN flanged (EN 1092-1), Grayloc, MS33649/AS5202 |
| Materials of Construction Custom available for service or on request | Carbon Steel, Stainless Steel, Monel, Inconel, Hastelloy C / C22 / C276, Duplex 22% or 25% Cr |
| Seat Materials Custom available for service or on request | F7040/F8040 Material (Plastic): Teflon®, Ekonol-filled PTFE, Kel-F (PCTFE), PI/PAI (Vespel®, Duratron®, or equal), PEEK F7050/F8050 Material (Elastomer): Buna-N, Viton® (FKM) or equal, EPR/EPDM, Aflas, FFKM (Chemraz®, Kalrez®, etc), Polyurethane, HNBR |
CERTIFICATIONS & COMPLIANCE
- ASME Sec VIII Div. 1 (NB-18 Cert. No. 28000, 28011, 28022, 28099, 28156)
- IGC Code Sizing (Air @ 0°C)
- ABS Product Design Assessment (Cert. No. 16-HS1495073-PDA)
- BV Mode 1 & Type Approval
- DNV-GL Type Approval
- LR Design Appraisal Document F7100/8100, F8200, F8300, F8500
- US Coast Guard Certificate
- Cryogenic testing per ISO 21013:1(2008)