Push-to-Connect Brass Fittings for Plastic Tubing | Parker Prestolok PLP/PLN

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Parker's Prestolok PLP and PLN^* is a one piece push-to-connect brass fitting for low pressure pneumatic circuits, where assembly or disassembly and reassembly is important. PLP designates nickel plated brass body, PLN designates brass body without nickel plating. A stainless steel grab ring grips the tubing to provide retention. Swivels are featured on all male pipe threaded shapes for installation in tight places and for precise positioning. The fittings are corrosion resistant, with a pre-applied thread sealant and nitrile D-seal.

To order brass body without nickel plating, replace "PLP" in the part number with "PLN".

Do not use for live swivel applications. For swivel applications, use oscillating elbows.

Nomenclature Example:

W68PLP-4-2	W68PLN-4-2
W - White acrylic thread sealant 68 - Male connector PLP - Prestolok, nickel plated brass 4 - 1/4" tube OD 2 - 1/8" pipe thread	W - White acrylic thread sealant 68 - Male connector PLN - Prestolok, brass 4 - 1/4" tube OD 2 - 1/8" pipe thread

 

Specifications

Materials

• Body: Nickel plated brass (PLP) or brass (PLN)
• O-Ring: Nitrile is standard; other materials available on request
• Release Button: Polyacetal
• Grab Ring: Stainless steel

Performance

• Working Pressure: Up to 300 PSI, depending on pressure rating of tubing used
• Temperature Range: 0°F to 200°F
• Vacuum Applications: Depend on tubing used and temperature

Sizes

• Tube OD (in): 1/8, 3/16, 5/32, 1/4, 5/16, 3/8, 1/2
• Tube OD (mm): 4, 6, 8, 10, 12, 14

Recommended Tubing

Parker Prestolok metal fittings are designed to work with the following Parker tubing:

• Series E (inch sizes) - Linear low density polyethylene
• Series E (metric sizes) - Linear low density polyethylene
• Series PP - Polypropylene
• Seires N (inch sizes) - Plasticized Polyamide (Nylon) (inch sizes)
• Seires N (metric sizes) - Plasticized Polyamide (Nylon) (metric sizes)
• Series NR - Unplasticized Polyamide (Rigid Nylon)
• Series U - Polyurethane 90 durometer shore A
• Series HU - Polyurethane 95 durometer shore A

Inch sized Parker Prestolok nickel plated fittings can also be used with Polyurethane 85 durometer shore A. However, not all manufacturers of 85A PU tubing approve the use of their tubing with push-to-connect fittings.

Testing has shown that certain OD-ID combinations can be used but applications and service conditions vary. Therefore, the use of a tube support may be required for any 85A PU tubing.

The following OD-ID size combinations require the use of a tube support regardless of application:
(all sizes in inches)

• 5/32 - 3/32
• 3/16 - 1/8
• 1/4 - .170
• 1/4 - 3/16
• 5/16 - 1/4
• 3/8 - 5/16
• 1/2 - 3/8

Available Configurations

Tube to Male NPTF

Male Connector - Round Body 68PLPR	Male Elbow - Swivel W169PLP	Male Elbow W169PLPNS
Male Run Tee Swivel W171PLP	Male Branch Tee Swivel W172PLP	Male Connector W68PLP
Male Connector W68LF

Tube to Female NPTF

Female Connector 66PLP

Tube to Tube

Union Tee 164PLP

Union Elbow 165PLP

Union 62PLP

Bulkhead Union

Bulkhead Union 62PLPBH

Female Bulkhead Union 66PLPBH

Tube to Straight Thread

Male Connector 68PLP

Male Connector 68LFR

Tube to Male BSPT

Male Connector - Tube to Male BSPT W68LF

Tube to Male BSPP

Male Connector - Tube to Male BSPP PLPHBF4-B

Metric Tube

Male Connector - Metric Tube to BSPT W68LF	Male Connector - Metric Tube to NPT W68LF	Female Connector - Metric Tube to Female BSPP 66LF
Female Connector - Metric Tube to Female NPT 66LF	Male Connector - Metric Tube to Male BSPP 68LF

For information on sizes and pricing, please call us at 888.715.4673, email us at hfe@hfeweb.com or fill out a contact form on this page to get answers to your questions.