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QPM11 Air Pressure Switch G1/8 G1/4 NO NC 0.1-1MPa Diaphragm
QPM11 Air Pressure Switch G1/8 G1/4 NO NC 0.1-1MPa Diaphragm
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QPM11 Adjustable Diaphragm Air Pressure Switch – G1/8 & G1/4
The QPM11 Series Adjustable Diaphragm Pressure Switch delivers precise, reliable pressure control for pneumatic, hydraulic, and industrial automation systems. With its wide 0.1–1.0 MPa adjustment range and both Normally Open (NO) and Normally Closed (NC) operating modes, this compact switch is a versatile solution for air compressors, hydraulic equipment, and automated production lines.
Made in Mainland China.
Key Features
- Ultra-Precise Pressure Regulation: High-sensitivity diaphragm mechanism enables accurate pressure monitoring across the 0.1–1.0 MPa range with less than 3% deviation — ensuring consistent, stable equipment operation and minimizing system faults caused by pressure fluctuations.
- Long-Lasting, Corrosion-Resistant Construction: Built from nickel-plated iron and premium-grade materials, this switch withstands abrasion and high-pressure impacts for up to 1 million operating cycles, even in demanding industrial environments.
- Tool-Free Fast Installation: Standard G1/8" and G1/4" universal threaded interfaces with pluggable copper contact terminals fit most conventional pneumatic pipelines — no complex wiring needed. Reduces installation and maintenance time by over 50%.
- Impact-Resistant Protection: High-strength, flame-retardant ABS protective cover shields against dust, water splash, and accidental mechanical impact — ideal for outdoor applications or complex workshop environments.
- Dual Operating Modes: Internal precision adjustment structure supports both NO (Normally Open) and NC (Normally Closed) configurations, adapting seamlessly to diverse pressure control requirements.
Specifications
| Model | QPM11 |
| Pressure Range | 0.1 – 1.0 MPa |
| Thread Size | G1/8 / G1/4 |
| Operating Mode | NO (Normally Open) / NC (Normally Closed) |
| Material | Nickel-Plated Iron / Flame-Retardant ABS Cover |
| Service Life | Up to 1,000,000 operating cycles |
| Voltage Rating | Above 50Vac or 75Vdc |
| High-Concern Chemicals | None |
| Quantity | 1 piece |
| Country of Origin | Mainland China |
Ideal Applications
- Air compressors and pneumatic systems
- Hydraulic equipment and machinery
- Industrial automation and production lines
- Outdoor and workshop environments
Important Notes
- Product photos are for illustrative purposes; please refer to the specifications above for exact sizing.
- Allow for minor differences due to manual measurement.
- Colors may vary slightly depending on monitor settings.
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For general industrial safety standards and guidelines related to pressure systems, refer to OSHA – Compressed Gas and Equipment Safety.
Learn more: Pressure switch
Frequently Asked Questions
Q: What pressure range does the QPM11 Adjustable Pressure Switch cover?
A: The QPM11 adjustable diaphragm pressure switch operates within a range of 0.1 to 1.0 MPa, with a deviation of less than 3%, making it suitable for a wide variety of pneumatic and hydraulic applications.
Q: Does this pressure switch support both Normally Open (NO) and Normally Closed (NC) modes?
A: Yes. The QPM11 features an internal precision adjustment structure that supports both Normally Open (NO) and Normally Closed (NC) operating modes, giving you flexibility for different system configurations.
Q: What thread sizes are compatible with this pressure switch?
A: This switch is compatible with standard G1/8 and G1/4 threaded interfaces, fitting most conventional pneumatic pipelines without requiring special adapters or complex installation tools.
Q: How durable is the QPM11 pressure switch in industrial environments?
A: The QPM11 is built from nickel-plated iron and features a high-strength, flame-retardant ABS protective cover. It is rated for up to 1 million operating cycles, making it well-suited for continuous use in harsh industrial or outdoor settings.
