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• Installation of Pipe Fittings
  • Tighten fitting by hand, then turn it 2-3 turns with a wrench until it reaches the desired torque listed. If the fittings are not pre-coated with sealant, or is used and the sealant is not in good condition, apply Teflon sealant tape to the threads.

    Recommendation of Torque for Tightening Fittings
    Fitting Thread Size	Torque, lb-ft	Torque, kgf/cm
    10-32, M5 - M6	1.0 - 1.5	14 - 21
    NPT 1/8, R1/8	5 - 6.5	70 - 90
    NPT 1/4, R1/4	8.5 - 10	120 - 140
    NPT 3/8, R3/8	16 - 17.5	220 - 240
    NPT 1/2, R1/2	20 - 21.5	280 - 300

• Installation of Tubing into Fitting:
  • Slowly push a clean and perpendicularly cut tube into the fitting until it comes to a dead stop.
  • Gently pull the tubing back until the Grip Ring or Collet of the fitting grips onto the tubing and has a good seal.
  • Use Polyethylene, Polypropylene, Polyurethane, or Nylon tubing designed for instant fittings.


• Removal of Tubing from Fitting:
  • Push in evenly on the two long, oval sides of the Release Button.
  • Pull out the tube while depressing the Release Button.
  • To reuse the tubing, cut off the lodged portion of the previously used tubing in an even and perpendicular fashion.


• Recommended Tubing Material, Size, and Hardness Requirements:

  Tubing Material	Specified Size	Hardness (Durometer)
  Polyurethane	+/- 0.006" (+/-0.15 mm)	Shore A 85 or higher
  Polyethylene	+/- 0.004" (+/-0.1 mm)	Shore D 44 - D75
  Polypropylene	+/- 0.004" (+/-0.1 mm)	Shore D 44 - D75
  Nylon	+/- 0.004" (+/-0.1 mm)	Shore D 44 - D75
  Pre-grooved Metal Tubing	+/- 0.004" (+/-0.1 mm)

• Specifications, Materials of Construction, and Schematic of Typical Construction:

  Specifications
  Operating Pressure Range	0 - 180 PSI (0 - 1200 kpa)
  Vacuum	0 - 29.5" Hg (750 mm Hg)
  Operating Temperature	32 - 140°F (0 - 60°C)
  Recommended Tubing Material	Polyurethane, Nylon, Polyethylene, Polypropylene
  Metal Body	Brass, Nickel Plated
  Plastic Body	PBT (Polybutylene Terephthalate)
  Release Button	POM (Polyoxymethylene copolymer)
  Grip Ring or Collet	300 Series Stainless Steel
  O-Ring	NBR (Buna-N)
  Thread Sealant	Teflon
  Service	FOR AIR ONLY

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Sizto Tech Corporation © 2001- All rights reserved. Sizto Tech Corporation © 2001-2016. All rights reserved. Last modified: May 10, 2016. Information contained herein may be changed without prior notification.