Parker Fittings

When leading companies need reliable, high-performance fittings, they trust Parker. From high-purity fittings that reduce particle buildup to high-strength options built for extreme pressure, Parker ensures leak-tight, dependable connections.

No matter the challenge—corrosive environments, extreme temperatures, vacuum conditions, or high-pressure applications—Parker fittings deliver. With Parker as your partner, you get more than just quality fittings; you get expertise and reliability tailored to your industry’s needs.

Parker Instrument Fittings & Quick Couplings

Ensure seamless operation with Parker Fittings. Our extensive range of fittings and quick couplings are engineered to the highest quality standards, minimizing downtime and maximizing efficiency. Find the perfect Parker Fittings for your specific application needs.

CPI Fittings - Parker Instrument Fittings

Parker CPI™ Fittings

Three piece simple design to work on all instrumentation grade tubing
Molybdenum Disulfide coated nuts to prevent galling and provide lubrication
Single ferrule system treated with Suparcase™ technology to insure sealing

Superior body seat surface finish to seal gases and liquids
Single ferrule technology to provide excellent anti-vibration performance
Excellent in high thermo cycling applications

Parker A-LOK® Fittings

Industry standard design for all instrumentation grade tubing
Silver coated threads to reduce galling
Industry double ferrule design for system specifications

Back ferrule is treated with Suparcase™ technology to provide a strong mechanical grip on the tube

Parker MPI™ Fittings

Compression fitting for medium pressure applications up to 15,000 psi (1,034 bar)
Inverted body and nut design for added strength with thick-wall tubing
Longer thread area for improved performance and resistance to vibration

Molybdenum Disulfide coated nuts to prevent galling and for higher temperature applications
Installation and rework time reduced by 50%

Parker Phastite®

Option for welded systems
Simple assembly process provides high integrity connections, first time every time
Installation time reduced to seconds

No loose parts, supplied factory pre assembled
Permanent push fit tube connector with working pressures up to 13,300 psi (917 bar)

Parker Instrumentation Pipe Fittings

Manufactured from 316 stainless steel for superior corrosion resistance
Available with NPT and ISO thread configurations

All exposed threads protected to prevent damage
All pipe threads meet ANSI B1.20.1 requirements

Parker Welded Fittings

Available in socket weld, buttweld and automatic buttweld connections
Manufactured to meet ASME Section III, and ANSI B31.1 and B31.7 codes

Permanent, leak free connection
For critical applications and high temperatures such as steam

Parker Cylinder Connections

High integrity and ultra high integrity (DISS) connections
Seal enhancer improves connection integrity

Cleaned and packaged for O2 service
Complete line consists of nipples, nuts, gaskets, adapters, caps, plugs, assemblies, seal enhancers, flexible pigtails, torque wrenches

Parker Brass Push-to-Connect Fittings

Prestolok® push-to-connect fittings are designed for use with nylon, polyethylene, polyurethane and soft metal tubing
Ideal for pneumatic applications

• Equipped with stainless steel grab rings eliminating need for tube supports
No tools required for installation
Designed for side-loading

Parker Quick Couplings

Non-Spill designs virtually eliminate fluid loss upon disconnection and drastically minimize air inclusion during connection
Common industrial and global interchanges available

Various body and seal materials available for transfer and sealing off media in corrosive or high purity applications
Working pressures available up to 10,000 psi (690 bar)

Parker Fittings – Specifications & Sizes