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High Efficiency

Type 702, 712, 714, 731

The Supplementary Loading System is an additional option for LESER safety valves. It uses external air pressure to guarantee better tightness up to set pressure. This makes higher operating pressures of the plant possible.

Approvals

Industries

  • Oil and Gas Industry
  • Chemical Industry
  • Petrochemical Industry
  • Power
  • Technical Gases
Product info Metric unit US unit

Key feature

Supplementary Loading System (additional option for safety valves)

Nominal diameter inlet

Nominal diameter inlet - Thread

Nominal diameter inlet - Flange

Nominal diameter outlet

Pressure

Operating limits valve size

DN 25 - DN 400

1" - 16"

Operating limits pressure class inlet flange

PN10 - PN400

CL150 - CL2500

Flange rating inlet

KUB-Materials

Type of loading

controlled by external medium

controlled by external medium

Approvals

PED/ DIN EN ISO 4126-5, PED/ AD 2000-Merkblatt A2, EAC

PED/ DIN EN ISO 4126-5, PED/ AD 2000-Merkblatt A2, EAC

Specials

Pilot action type: External energy
Full open (overpressure): 1%
Blowdown: 3%
Application: Steam, gasses and liquids

Pilot action type: External energy
Full open (overpressure): 1%
Blowdown: 3%
Application: Steam, gasses and liquids

Feature Option Code Schematic drawing
Connections outlet    
Box in box construction

Weather protection IP65 due to safety cabinet

M95

 
Heating

Standard electrical heating inclusive temperature control, 230V/50Hz

M87

Electrical heating with Ex-protection Zone 1 inclusive temperature control, 230V/50Hz

M94

 
Design

Pneumatic

Electropneumatic

 
Multiple valve control

Multiple valve control for more than one safety valve

 
Remote lifting device

Solenoid valve 24V DC

M97

Solenoid valve 24V DC EEX mII T5

M89

Solenoid valve 230V DC EEX mII T5

M98

 
Documentation    
Balanced Piston    
   
   
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