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Parker’s comprehensive range of fittings and quick couplings will keep your application running smoothly with products of the highest quality standards.No matter what your application,we have the fittings and couplings to help you avoid costly downtime.

Fittings/Quick Couplings
> 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


> A-LOK® Fittings

• Industry standard design for all

   instrumentation grade tubing

• Silver coated threads to reduce galling

• Industry double ferrule design for system


• Back ferrule is treated with Suparcase™

   technology to provide a strong mechanical    grip on the tube

> 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


• Installation and rework time reduced by


> 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


• Permanent push fit tube connector with

  working pressures up to 13,300 psi(917bar)

> Instrumentation Pipe Fittings

• Manufactured from 316 stainless steel for

  superior corrosion resistance

• Available with NPT and ISO thread


• All exposed threads protected to prevent


• All pipe threads meet ANSI B1.20.1


> Welded Fittings

• Available in socketweld, 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

> Cylinder Connections

• High integrity and ultra high integrity

  (DISS) connections

• Seal enhancer improves connection


• Cleaned and packaged for O2 service

• Complete line consists of nipples, nuts,

  gaskets, adapters, caps, plugs,

  assemblies, seal enhancers, flexible

  pigtails, torque wrenches

> 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

> 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)

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