Pigtails

Cylinder pigtails are used to connect a manifold to compressed gas cylinders. They are equipped with a CGA inlet fitting which matches the cylinder valve CGA outlet connection (to minimize the possibility of hazardous misconnections). Most pigtails are provided with an attached wrench. All pigtails are pressure tested in excess of their required working pressure (all pigtails have a working pressure equal to the required CGA connection).

Brass manifold pigtails are ordered as options, allowing a choice of flexible or rigid construction.Stainless steel manifolds come standard with flexible type 316 stainless steel pigtails to provide maximum system integrity and product purity.

RIGID PIGTAILS

Rigid pigtails are the most common and least expensive pigtail, made from annealed copper, stainless steel, or brass heavy wall tubing. These pigtails are ideal for all gas services, especially high-purity service. The major drawback is work hardening and cracking due to bending in use over an extended period of time.

FLEXIBLE PIGTAILS

Flexible pigtails are recommended for frequent cylinder replacement situations where rigid pigtails can work harden and leak due to excessive bending. Flexible synflex pigtails have a nylon inner core with a polyester braid and polyester or polyurethane cover (recommended for general service). Flexible teflon pigtails have a virgin teflon inner core with a stainless steel outer braid. Flexible stainless steel pigtails have a corrugated inner stainless steel core with a stainless steel outer braid (recommended for high-usage or corrosive gas service).

Ordering Information

(with Wrench handle - pigtails with handtights (instead of wrench handlges) are noted in description)

Gas Service

CGA

Description

Part Number

Acetylene 300 Flexible Pigtail, Synflex Hose with Check Valve & Flash Arrestor 273-330363
510 Rigid Pigtail, Brass with Check Valve and Flash Arrestor 273-331204
Carbon Dioxide 320 Flexible Pigtail, Synflex Hose 273-330347
Rigid Pigtial, Coppe 273-331237
Rigid Pigtail, Copper with Check Valve 273-411225
Flexible Pigtail, Teflon Hose w/ Stainless Steel Outer Braid 273-437517
Compressed Air 346 Rigid Pigtail, Copper with Check Valve 273-410996
Flexible Pigtail, Handtight, Teflon Hose w/ Stainless Steel Outer Braid, Check Valve 273-413857
Flexible Pigtail, Teflon Hose w/ Stainless Steel Outer Braid, Check Valve (CGA 90 degree to hose) 273-413858
Rigid Pigtail, Copper 273-414368
Rigid Pigtail, Copper, Handtight 273-414369
Hydrogen  350  Rigid Pigtail, Copper with Check Valve 273-400234
Flexible Pigtail, Synflex Hose with Check Valve 273-411551
Rigid Pigtail, Brass with Check Valve 273-415754
Fuel Gases, Apachi, Propane (510P), MAPP, Propylene  510  Flexible Pigtail, Copper for Charging/Discharging 273-330359 
Rigid Pigtail, Copper, Handtight 273-400233 
Oxygen  540  Rigid Pigtail, Copper for Charging/Discharging 273-331200 
Rigid Pigtail, Copper, Handtight 273-411662
Oxygen Mixtures 296 Rigid Pigtail, Copper 273-412032
Argon, Helium, Nitrogen      580 Flexible Pigtail for Charging/Discharging 273-330348 
Rigid Pigtail, Copper for Charging/Discharging 273-331232 
Flexible Pigtail for Charging/Discharging 1/4" FNPT 273-411833 
Flexible Pigtail, Handtight for Cylinder Charging  273-331203 
Flexible Pigtail, Handtight for Cylinder Charging  273-411664
Rigid Pigtail, Copper, Handtight for Cylinder Charging 273-411692 
       
       

Note: Pigtails for acetylene manifolds must have a check valve and dry flash arrestor and cannot be of copper construction. Use only those pigtails listed for acetylene service.

Pigtails used for fuel gas service other than acetylene must have a check valve at the manifold end.