Product Description:
The NORGREN 18D Series (Model 0880 / 0881) is an electro-mechanical pneumatic pressure switch that relies on a diaphragm-actuated mechanism. It is a well-established pressure monitor widely used in industrial automation for applications such as pressure alarms, interlocks, and loop control. Manufactured by IMI Norgreen, this series is designed to handle vacuum pressures up to 30 bar and offers multiple port configurations including G1/4, 1/4 NPT, and flange mounting options.
Users can choose between two types of electrical connections: a DIN EN 175301-803 Form-A connector or an M12×1 connector compliant with IEC 947-5-2 standards. Additionally, LABS-free versions and brass-body models specifically designed for water service are available. These variants allow the switch to operate effectively with neutral gases, liquids, and water-based media in a variety of working environments.
The device is equipped with a gold-plated contact microswitch certified by UL and CSA, ensuring reliable and intrinsically safe operation. It is capable of withstanding vibration loads up to 15 g and boasts a mechanical service life of up to 10 million switching cycles, delivering excellent repeatability. The standard housing is constructed from aluminum alloy, while models intended for water applications utilize a brass housing. Seal options include NBR and FPM materials, and the maximum ingress protection rating is IP67, making the switch suitable for harsh factory conditions.
When the system pressure reaches the designated set-point, the SPDT micro-switch triggers an electrical signal. This signal can be used for machine interlock functions, alarm indications, and on/off control in pneumatic machines, hydraulic circuits, and water treatment equipment.
Note: It is recommended that set-points be positioned near the middle of the pressure range. Do not exceed the rated pressure indicated on the product nameplate. For circuits with inductive loads, spark-quenching protection is necessary. Connectors are sold separately; DIN or M12 plugs are not included.
Features:
Experience the authentic quality of NORGREN IMI with the comprehensive 18D‑0880 series, which offers a wide selection of pressure ranges and port options to suit various applications.
This series features diaphragm-operated technology, capable of handling an operating pressure range from -1 to 30 bar (-14 to 435 psi), with a maximum over-pressure tolerance of 80 bar.
Equipped with a gold-plated contact micro-switch, these devices hold UL and CSA approvals and boast an impressive mechanical lifespan of up to 10⁷ switching cycles.
Designed to withstand harsh environments, they provide high resistance to vibrations up to 15 g and support intrinsically safe operation for enhanced reliability.
The ingress protection ratings are IP65 for DIN connectors and IP67 for M12×1 connections, ensuring effective protection against dust and water ingress.
Compatible with neutral, non-flammable gases and liquids, this range includes a dedicated brass body variant optimized for water service, and can handle media with viscosities up to 1000 mm²/s.
The switches output via SPDT configuration with fixed hysteresis and allow for flexible installation positions without restrictions.
Seal materials can be selected between NBR and FPM, with LABS-free versions available to cover a full vacuum pressure range.
Two electrical interface options are offered: DIN EN175301‑803 Form‑A and M12×1 IEC947‑5‑2, providing versatile connectivity choices.
Technical Parameters:
| Ingress Rating |
IP65 (DIN) |
| Port Size |
G1/4, 1/4 NPT, Flange Mounting |
| Operating Pressure |
-1 … 30 Bar (-14 … 435 Psi) |
| Actuation |
Diaphragm Type |
| Series |
18D Series, 0880 / 0881 Model Family |
| Brand |
IMI NORGREN |
Applications:
Pressure monitoring and alarm systems play a crucial role in industrial pneumatic automation. These systems ensure that pressure levels remain within safe limits, helping to prevent accidents and machinery damage by providing timely alerts.
In addition, pressure interlock protection is essential for safeguarding compressors and vacuum pumps. By monitoring pressure conditions, these interlocks help to avoid operational faults and enhance the reliability of the equipment.
Hydraulic fluid power systems benefit significantly from pressure signal feedback mechanisms. These feedback signals allow for precise control and adjustment of hydraulic operations, ensuring smooth and efficient system performance.
Water-treatment and water-supply devices, especially those using brass water-service variants, utilize specialized pressure monitoring to maintain system integrity and guarantee consistent water flow quality.
Pressure detection is also widely applied in packaging machinery, machine tools, and conveyor equipment. Accurate pressure measurement in these machines ensures operational safety and improves productivity by enabling prompt response to pressure fluctuations.
Over-pressure alarms combined with machine start-stop controls are vital components in industrial fluid pipelines. These functions protect pipelines from pressure surges and allow for automated control of machinery based on pressure conditions.
Lastly, vacuum monitoring and control serve general-purpose machinery by maintaining optimal vacuum levels. Effective vacuum regulation helps in preserving machine function and preventing potential failures.
Support and Services:
Norgren is committed to providing comprehensive technical support and services for its Solenoid Valve products to ensure optimal performance and customer satisfaction. Our technical support team is available to assist with product selection, installation guidance, troubleshooting, and maintenance advice.
We offer detailed product documentation, including datasheets, installation manuals, and operation guides to help you understand the specifications and proper usage of our Solenoid Valves. Additionally, Norgren provides customized solutions to meet specific application requirements.
For maintenance and repair services, Norgren recommends following the guidelines provided in the product manuals to extend the valve's lifespan and maintain reliability. In case of product failure or warranty claims, our support team will guide you through the return process and provide timely assistance.
Norgren also offers training sessions and technical workshops to empower customers with in-depth knowledge of solenoid valve technology and best practices in pneumatic system design and maintenance.
By choosing Norgren Solenoid Valves, you benefit from the expertise and dedication of a global leader in pneumatic and fluid control solutions, backed by a robust support network committed to your success.
Packing and Shipping:
The Norgren Solenoid Valve is carefully packaged to ensure maximum protection during transit. Each valve is securely placed in a custom-fitted foam insert within a sturdy cardboard box to prevent damage from shocks and vibrations. The packaging includes anti-static materials to protect sensitive electronic components.
For shipping, the products are sealed and labeled with handling instructions, including “Fragile” and “This Side Up” markers. Multiple units are palletized and shrink-wrapped to maintain stability during transportation. Norgren partners with reliable carriers to guarantee timely and safe delivery to customers worldwide.
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