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PSM-PSP – Diaphragm Piston adjustable pressure switches intrinsic safety execution

The PSM-PSP diaphragm and piston pressure switch is engineered for precise pressure monitoring in hazardous industrial environments. Designed with intrinsic safety and ATEX certification, it ensures reliable performance across demanding applications. With adjustable pressure ranges, robust materials, and high durability, this switch supports oil, gas, and process industries. Its compact design, stable switching accuracy, and long mechanical life make it ideal for critical pressure control systems.

Category Pressure
Brand Elettrotec
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Technical details and application highlights

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The PSM-PSP diaphragm and piston adjustable pressure switch is a high-performance industrial solution designed for accurate pressure control in hazardous environments. Engineered with intrinsic safety and certified for ATEX applications, this pressure switch is ideal for industries such as oil and gas, chemical processing, and heavy manufacturing. Its robust construction and precision switching capability ensure safe and efficient operation under extreme conditions.

Key Features

This industrial pressure switch offers adjustable pressure ranges from low to high levels, allowing flexibility across diverse applications. It incorporates SPDT contact functionality for reliable switching performance. Built with high-grade materials such as tropicalized steel and stainless steel, it provides excellent corrosion resistance and durability. The wide temperature tolerance and high-pressure resistance make it suitable for harsh industrial environments.

Design & Functionality

The PSM-PSP utilizes diaphragm and piston sensing elements to deliver consistent and accurate pressure monitoring. The adjustable set-point allows operators to fine-tune performance according to system requirements. Its compact design supports easy integration into existing systems, while the IP65 protection ensures resistance against dust and water ingress.

Total Crossed Beams

Designed for operational stability, the internal mechanism ensures consistent actuation and minimizes pressure fluctuation impact. This improves reliability in continuous industrial processes where precision is critical.

Beam Pitch Options

The pressure switch supports multiple adjustment ranges, enabling compatibility with both low-pressure and high-pressure systems. This flexibility allows it to serve a wide range of industrial use cases without compromising accuracy.

Intrinsic Synchronism

The intrinsic safety design ensures that the device operates safely in explosive atmospheres. It prevents ignition risks by limiting electrical and thermal energy, making it compliant with strict industrial safety standards.

Operational Advantages

The PSM-PSP pressure switch enhances system efficiency by delivering precise pressure control and long service life. Its high mechanical durability, low maintenance requirements, and reliable switching make it a cost-effective solution. With multiple material and sealing options, it adapts to different fluids and environmental conditions, ensuring consistent performance across applications.

Parameter

Intrinsic Safety

ConnectorDIN 43650 form A PG09 or PG11
Input voltageVi 30 V
Input currentLi 100 mA
Max. input powerPi 0.75 W
Input capacityCi ≈ 0
Input inductanceLi ≈ 0
Adjustment range0.2–2 bar, 1–10 bar, 10–50 bar, 30–100 bar, 30–150 bar, 50–300 bar
Max. static pressure300 bar, 600 bar
Hysteresis10% to 30% of set-point
Temperature range-30°C to +140°C
ContactSPDT
Body materialTropicalized Steel, Stainless Steel AISI 316 / 303
Diaphragm / SealNBR, FKM, Silicone, HNBR, Neoprene, EPDM, Stainless Steel
ThreadsBSPT, BSPP, NPT, Metric options
ProtectionIP65
Mechanical life10⁶ operations
DimensionsBody Ch 27, Max height 79 mm
CertificateATEX II 1 G EEx ia IIC T6
OptionsSnubber, gold contacts, oxygen cleaned, gas tested
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