Parker 12BLP12-316 Compression Tube Plug Ss 5800 Psi

Product Description

The PARKER 12BLP12-316 is a compression tube plug designed to terminate or cap off tubing runs in high-pressure fluid and gas systems. Machined from 316 stainless steel, this plug seats via a compression end connection, eliminating the need for threaded engagement at the tube end. It carries a 1-20 inch thread designation and is rated for working pressures up to 5800 psi. The wide service temperature range — from -425 degrees F to 1200 degrees F — makes it suitable for cryogenic, steam, and high-temperature process applications. Plumbers, pipefitters, and instrumentation technicians install this fitting wherever a clean, leak-tight tube termination is required.

This plug fits into instrumentation, hydraulic, pneumatic, and process piping systems that use compression-style tube fittings. It is commonly found in industrial facilities, refineries, chemical processing plants, and commercial mechanical systems where stainless steel construction is specified for corrosion resistance and pressure integrity. The NPT thread standard ensures compatibility with standard American pipe thread fittings and manifolds. Typical applications include capping unused ports on manifolds, isolating branch lines during commissioning, and sealing tubing ends during system pressure tests.

Key Features

• 316 stainless steel construction resists corrosion in aggressive media and outdoor environments
• Compression end connection provides a reliable, leak-tight seal without pipe dope or thread tape at the tube
• Rated to 5800 psi maximum working pressure for high-pressure instrumentation and hydraulic service
• Extreme temperature range from -425 degrees F to 1200 degrees F suits cryogenic and high-heat applications
• NPT thread standard for straightforward integration with standard fittings and manifolds
• Compact, single-piece plug design minimizes dead-leg volume in closed systems

Compatibility

Designed as an OEM-style compression tube plug for use in standard compression fitting systems requiring a 1-20 inch NPT thread with stainless steel construction and high-pressure ratings.

Installation Notes

Installation should be performed by a licensed pipefitter or instrumentation technician following applicable ASME and facility-specific pressure piping codes. De-pressurize and isolate the line completely before removing any existing fitting or installing this plug. Use the appropriate compression sleeve and nut for the tubing OD being capped, and tighten to manufacturer torque specifications for the fitting series in use. Inspect for leaks at system operating pressure before returning the line to service.