Parker 2.50NLP91.00 Rodless Air Cylinder 2.5 in Bore 250 Psi

Product Description

The PARKER 2.50NLP91.00 is a double acting rodless air cylinder designed for linear pneumatic motion control in industrial and automation applications. Built with an aluminum body and steel components, this cylinder delivers reliable bidirectional actuation up to 250 psi. It features a 2.5-inch bore and a 1-inch stroke, making it well suited for compact installations where space constraints prevent the use of conventional rod-style cylinders. The 1/4 NPT port accepts standard pneumatic fittings for quick integration into existing air lines. Licensed HVAC, mechanical, and industrial maintenance technicians commonly specify this style of cylinder for actuator-driven valve, damper, and tooling applications.

This cylinder is suited for light-duty to medium-duty pneumatic automation tasks in both commercial and industrial environments. The head or cap mounting style provides installation flexibility, allowing the cylinder to be anchored at either end depending on the fixture geometry. With an overall length of 2.375 inches and an overall width of 3.75 inches, the compact envelope fits tight panel and bracket configurations. The 1/2-20 female rod thread accommodates standard clevis and bracket hardware for straightforward mechanical attachment.

Key Features

• Double acting design provides powered extension and retraction up to 250 psi
• 2.5-inch bore with 1-inch stroke for compact, precise linear motion
• Aluminum body construction for lightweight installation
• 1/4 NPT port size for compatibility with standard pneumatic fittings
• Head or cap mounting style offers flexible orientation in tight spaces
• Nitrile butadiene rubber seals for reliable air retention across typical operating conditions
• 1/2-20 female rod thread for direct connection to standard hardware

Compatibility

Designed as an OEM-style replacement or direct-install rodless air cylinder for double acting pneumatic systems requiring a 2.5-inch bore, 1-inch stroke, and 1/4 NPT porting.

Installation Notes

Installation should be performed by a qualified pneumatic systems technician or millwright. Depressurize and lock out the air supply before removing or installing the cylinder. Ensure all port fittings are rated for the operating pressure and that thread sealant compatible with pneumatic service is applied at NPT connections. Verify mounting hardware torque requirements against the fixture design before returning the system to service.