Low Pressure Gauge, Diaphragm

Model: PRSSM-LD
  • Ideal for low-range pressure measurement in harsh, viscous, or crystallizing applications.
  • Pressure connections include threaded and flange mounting options, or electric contacts
  • Suitable for applications in the chemical, petrochemical, oil and gas industries as well as power engineering
  • Responsive after-sales service / Customizable
  • High quality / One-year warranty
  • Product images are for reference only. Final specifications are based on the confirmed order.

Description

The PRSSM-LD is a low-pressure diaphragm gauge featuring a corrugated diaphragm designed for corrosive, crystallizing, or highly viscous media. It offers measuring ranges from 0–1 kPa up to 0–25 bar, including vacuum and compound options. Available in 4″ and 6″ dial sizes, it provides wetted materials such as 316L stainless steel, Hastelloy alloy, or PTFE, with overload protection of 5 to 10 times full scale (up to 40 bar). The gauge supports threaded or flange process connections and features a stainless-steel case with glass or safety-glass window. Available in dry or liquid-filled versions and rated IP65, the PRSSM-LD is ideal for chemical, petrochemical, oil and gas, and other harsh industrial environments.

Specifications

Connection locationBottom mount
Nominal size4", 6"
Scale ranges0 ... 1 kPa to 0 ... 25 bar or other equivalent units of pressure, vacuum or compound
Process connectionthread, flange
Accuracy±2.5% F.S., ±1.6% F.S.
Overload safety5 x full scale value, max. 40 bar
10 x full scale value, max. 40 bar
Ambient temperature20℃ ... 60℃
Medium temperatureMaximum +100℃
Case/RingStainless steel
WindowGlass, safety glass
DialAluminum alloy, black scale on white
PointerBlack aluminum alloy
Sensor element316L SS, hastelloy alloy, PTFE
Case fillingFilled, unfilled
Ingress protectionIP65

Product Images

Diaphragm gauge with flange offset to prevent clogging
Diaphragm gauge with flange offset to prevent clogging
Micro-pressure SS gauge with reliable flange connection
Micro-pressure SS gauge with reliable flange connection
Threaded bolt type diaphragm gauge for heavy-duty use
Threaded bolt type diaphragm gauge for heavy-duty use
Diaphragm gauge with top plug for easy air venting
Diaphragm gauge with top plug for easy air venting
Precision micro-pressure gauge with SS flange mount
Precision micro-pressure gauge with SS flange mount
Industrial micro-pressure gauge with flange for gas monitoring
Industrial micro-pressure gauge with flange for gas monitoring
High-quality micro-pressure instrument with flange connection
High-quality micro-pressure instrument with flange connection
Full PTFE wetted parts diaphragm gauge, fully acid-proof
Full PTFE wetted parts diaphragm gauge, fully acid-proof
Full SS micro-pressure gauge with durable flange entry
Full SS micro-pressure gauge with durable flange entry
Standard micro-pressure gauge with secure flange mount
Standard micro-pressure gauge with secure flange mount
PTFE diaphragm gauge designed for superior acid resistance
PTFE diaphragm gauge designed for superior acid resistance
Industrial SS diaphragm pressure gauge with robust construction
Industrial SS diaphragm pressure gauge with robust construction

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