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4-DU by Dixon Valve | Instrumentation Fitting | Union | 1/4" Tube OD x 1/4" Tube OD | 316 Stainless Steel

4-DU by Dixon Valve | Instrumentation Fitting | Union | 1/4" Tube OD x 1/4" Tube OD | 316 Stainless Steel

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$36.38
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$36.38
$21.83
$21.83 - $21.83
$21.83

Dixon Valve
Instrumentation Fitting | Union | Tube x Tube

Applications include: high pressure, high temperature, nitrogen, helium, flammable gases, hydraulic gases, corrosive media and pneumatic automation.
Specifications for Variant SKU: 4-DU Dixon
Series: DU Series
Shape (Orientation): Straight
Ends Configuration: 1/4in Tube Compression, 1/4in Tube Compression, Some Ends Match
Material(s): 316 Stainless Steel
Compatibility & Interchange:
  • Fully interchangeable with Swagelok® and Parker A-Lok® fittings.
Features:
  • Double collet (ferrule) swaging action.
  • Two positive seal points.
  • Instrumentation fittings come completely assembled.
Construction:
  • ASTM material construction
  • 316 stainless steel
Specifications:
  • ASTM F 1387 Certified
Safety Notes:
  • Never connect, disconnect or remake a fitting with pressure in the system.
  • Make sure all fittings are properly installed.
  • It is not recommended to go beyond the pressure rating of the tubing. Elongation could occur in the tubing, shrinking the wall thickness and cause potential harm.
  • For proper sealing it is recommended that the tubing and fittings be of like material.
  • Always use proper thread lubricant and sealants on tapered pipe threads.
  • Never bleed a system by loosening a fitting.
Installation:
  • Cut tubing squarely and clean tube end thoroughly to remove burrs.
  • Insert tubing into the assembly making sure the tubing seats firm against the shoulder of the body and the nut is finger tight.
  • Tighten the nut with a wrench 1-1/4 turns, while holding the body with a second wrench.
Suggested Working Pressures (PSI)
Wall Thickness .028 .035 .049 .065 .083 .095 .109
1/4" 4,000 PSI 5,100 PSI 7,500 PSI 10,100 PSI --- --- ---
3/8" --- 3,300 PSI 4,700 PSI 6,600 PSI --- --- ---
1/2" --- 2,600 PSI 3,700 PSI 5,000 PSI 6,600 PSI --- ---
5/8" --- --- 2,900 PSI 3,900 PSI 5,200 PSI 6,000 PSI ---
3/4" --- --- 2,400 PSI 3,200 PSI 4,200 PSI 4,900 PSI 5,700 PSI
316 Stainless Steel
Part Number		 Tube O.D. x Tube O.D. Interchanges
2-DU 1/8" x 1/8" 200-6
4-DU-2 1/4" x 1/8" 400-6-2
4-DU 1/4" x 1/4" 400-6
6-DU-4 3/8" x 1/4" 600-6-4
6-DU 3/8" x 3/8" 600-6
8-DU 1/2" x 1/2" 810-6
10-DU 5/8" x 5/8" 1010-6
12-DU 3/4" x 3/4" 1210-6
16-DU 1" x 1" 1610-6
Dixon Valve & Coupling

Dixon Valve & Coupling

Dixon, founded in 1916, is a premier manufacturer and supplier of hose couplings, valves, dry disconnects, swivels, and other fluid transfer and control products. Our global reach includes a wide range of products for numerous industries including petroleum exploration, refining, transportation, chemical processing, food and beverage, steel, fire protection, construction, mining, and manufacturing.

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