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Mur-lok Fittings & Tubing for Plant Infrastructure

Our low cost Mur-lok plastic fittings and tubing are manufactured in South Dakota, USA and are ideal for use in manufacturing plants requiring non-oiled compressed air and fluid distribution for factory equipment.  Consider Mur-lok for your next assembly plant construction bid. 

Why Purchase from G.A. Murdock?

  • Order factory direct from Madison, SD.
  • Wholesale, OEM and Contractor pricing available.
  • On-demand, blanket and scheduled orders accepted. 
  • REACH, RoHS, Toxicity, Prop65, etc. compliance documentation available.

Contact us today to request CAD drawings and pricing.

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About Mur-lok Fittings

Fitting Specifications:
  • Tubing OD Sizes: 1/4", 5/16", 3/8", 1/2"
  • Threads: NPT, UNS, GHT, UNEF
  • Temperatures: 150 psi @ 70° F, 60 psi @ 140° F
  • Material: White or Black Polypropylene
  • O-rings: Dual EPDM or fluorocarbon
  • Certified to NSF/ANSI Standard 58

Mur-lok quick-connect fittings feature steel teeth and dual o-rings that grip the tubing with a simple push-in installation.    Mur-lok fittings can be used as replacements for John Guest Speedfit (UK) inch size fittings to help avoid the impact of recent US Tariff increases.

The combination of a polypropylene body and EPDM o-rings is highly chemical resistant.  Our black polypropylene fittings and LLDPE polyethylene tubing also offer additional resistance to indoor and outdoor UV lighting exposure.  We also offer fluorocarbon o-rings for increased chemical compatibility.   Mur-lok fittings are not designed for hot water applications.

Optional locking clips can add additional hold in applications where the tubing may be jostled or moved occasionally. It is also possible purchase fittings with collet connections in different colors to organize your connections and indicate line direction, size, contents, destination, etc.  Colors available: white, black, grey, blue, red, green, yellow, orange.

 

Browse Mur-lok Fittings

 

About Mur-lok Tubing

LLDPE Tubing Specifications:
  • Tubing OD Sizes: 1/4", 5/16", 3/8", 1/2" (additional Drain Line sizes available)
  • Colors: Natural (Semi-transparent), white, black (UV resistant), blue, red, green, orange, yellow.
  • Lengths: 100 ft boxed coil - 1000 ft spool
  • Custom lengths, printing, sizes and color are available upon request.
  • Material: Linear Low Density Polyethylene
  • Certified to NSF/ANSI Standard 58

Mur-lok polyethylene tubing is extruded from Linear Low-Density Polyethylene (LLDPE) and is available in many configurations to help organize your connections between equipment.   This semi-rigid tubing has a wall thickness designed to withstand pressures up to 230 psi @ 70° F.  It is commonly used for cold water feed lines, non-oiled compressed air lines and drain lines.  In addition to standard sizes, we can custom label, print, cut length, package or extrude tubing to meet your exact requirements.

Our black polyethylene tubing offers additional resistance to indoor and outdoor UV lighting exposure.   Mur-lok tubing is not designed for hot water applications.

Tubing can be mounted to the wall or to equipment using our Mur-lok Tubing Clips.

 

Browse Mur-lok LLDPE Tubing