A variety of high and low pressure, metal or soft seated safety valves for a range of applications including the power, chemical, petrochemical and process industries. ASME 1 Boiler Safety Valves for all types of boiler and steam systems also available.

Pilot Operated
For premium tightness on difficult services, such as gas liquid, steam, flashing fluids, cryogenics etc.

• Pop or modulating action, Bubble tight performance
  
• Low-cost maintenance, In-situ testing available
  
• Not sensitive to back pressure
  
• Externally adjustable blowdown
  
• Stable even in two-phase flow
  
• High capacity/high pressure
  
• Configurations to suit dirty services
  
• Pressure Class: 1 to 425 bar (up to 690 bar optional)
  
• Sizes: 1” x 2” to 8” x 10” (single or dual outlet)
  
• Temperature range: - 252°C to +538°C
  

Spring Operated
Metal or soft seated range of safety valves for all process industry applications

• High capacity, Full nozzle design, Capacity certified
  
• Conventional/bellows open bonnet design
  
• Design codes according to ASME VIII / API 526 and TRD / AD 2
  
• Liquid trim design
  
• Cost effective maintenance, In-situ testing
  
• Flanged, threaded, hub, socket and butt welded connections
  
• Pressure Class: ASME 150 to 2500, PN 10 to 400
  
• Sizes: 1/2” x 1” to 28” x 36”
  
• Temperature range: -196°C to +815°C
  
• End connections: Conforming to ASME/DIN connections
  

ASME 1- Boiler Safety Valves
Drum, superheater, reheater and economiser valves for all types of boiler and steam systems

• Seat tightness up to 96%+ of set pressure
  
• Exceptional tightness minimises maintenance resources and repair interval times
  
• Reduced life cycle costs
  
• Full and semi nozzle designs available
  
• Lift restriction facility available on HCI style
  
• Open and closed bonnets available
  
• Weather hoods for outdoor service
  
• Pressure Class: ASME 150 to 2500, Flanged or butt welded Inlets and flanged outlets
  
• Sizes: 1.5” (DN40) to 6” (DN150) inlets
  
• Temperature range: Saturated steam to 593°C
  

Safety Selector and Changeover Valves
Dual pressure relief system for all process industry applications

• Dual safety valves system
  
• Either 1 valve active and 1 stand-by or 2 valves in service and possibility to isolate one or maintenance
  
• Guarantee less than 3% pressure drop
  
• Bleed valves standard
  
• Enhanced external tightness without bellows
  
• Globe shaped body
  
• Integral flat seats
  
• Rising non-rotating stem
  
• Bellows sealed design
  
• Positive drive chain interlocking