Application: Adjustable overpressure protectors are intended to protect pressure gauges against the effect of pressure exceeding their maximum pressure rating Stainless steel version for corrosive pressure media, even in corrosive ambience process industry: mechanical engineering and plant construction, chemical/petro-chemical, power stations, mining, on and offshore, environmental technology.

Specification:
Diaphragm overload protection device
For visous and sedmentous process medium with diaphragm seal.
Setting range: 0.016-1.0MPa
Over pressure limit: 0-5MPa
Working temperature: -25~120℃
Diaphragm material: 316L
Set point accuracy: ±4%
Wetted material: 316+BUNA
Connection: thread M20×1.5(M/F), 1/2"NPT(M/F) 

Piston overload protection device
For visous and sedmentous process medium with diaphragm seal.
Setting range: 1.6-40MPa
Working temperature: -25~120℃
Diaphragm material: 316L
Set point accuracy: ±4%
Wetted material: 316+BUNA
Connection: thread M20×1.5(M/F), 1/2"NPT(M/F) 

Special versions
Body material: 321, 304, 316L
Connection: other on request
Packing material: as different process temperature
and setting range VITON -25~240℃, 0.16-40MPa