Series ST straight through couplings are designed for use where minimum pressure drop is required and valving is not needed. They are well suited for use on pressure wash, steam and carpet cleaning equipment, and many fluid transfer systems. Body sizes range from 1/8" to 2½".

Features:

  • Ball lock
  • Manual operation
  • Smooth bore permits free flow of liquid or gas
  • Male and female NPTF, BSPP and hose stem connections
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    Unit of Measure
    Items
    FCouplings seriesST primary

    Fluid Couplings, Series ST, Straight Through
    FCouplings seriesST primary

    Fluid Couplings, Series ST, Straight Through
    FCouplings seriesST primary

    Fluid Couplings, Series ST, Straight Through
    FCouplings seriesST primary

    Fluid Couplings, Series ST, Straight Through
    FCouplings seriesST primary

    Fluid Couplings, Series ST, Straight Through
    Description N/A
    Series ST straight through couplings are designed for use where minimum pressure drop is required and valving is not needed. They are well suited for use on pressure wash, steam and carpet cleaning equipment, and many fluid transfer systems. Body sizes range from 1/8" to 2½".

    Features:

  • Ball lock
  • Manual operation
  • Smooth bore permits free flow of liquid or gas
  • Male and female NPTF, BSPP and hose stem connections
    • Body Size1 N/A 1/8 in N/A 1/4 in N/A 3/8 in N/A 1/2 in N/A 3/4 in
    Temperature Range N/A -40 to 250 ºF-40 to 121 ºC
    Interchangeability N/A Other Manufacturers’ ST Style Couplings
    Rated Pressure
    w/ Brass Socket & Plug2         		N/A 2,800 psi193 bar N/A 5,200 psi359 bar N/A 2,800 psi193 bar N/A 2,200 psi152 bar N/A 1,700 psi117 bar
    Rated Pressure
    w/ Brass Socket & Steel Plug         		N/A 3,400 psi234 bar N/A 5,500 psi379 bar N/A 4,200 psi290 bar N/A 3,500 psi241 bar N/A 2,100 psi145 bar
    Rated Pressure
    w/ Stainless Steel Socket & Plug         		N/A 4,200 psi290 bar N/A 7,500 psi517 bar N/A 6,300 psi434 bar N/A 3,600 psi248 bar N/A 3,000 psi207 bar
    Materials N/A
  • Brass or 303 stainless steel socket
  • Stainless steel spring, balls and retaining ring
  • Brass, zinc plated steel and 303 stainless steel plug
  • High impulse heat treated 416 stainless steel plugs available in 1/4" and 3/8" body sizes
  • Buna-N (Nitrile) seal; PTFE (1-ST through 8-ST), Neoprene, Fluorocarbon (FKM) and EPDM available
    • Applications & Markets N/A
  • General Industry
  • Marine
  • Food & Beverage
  • Fluid Transfer
  • Military
  • Breathing EquipmeLOC
  • Chemical
  • Carpet Cleaning .
  • Pressure Wash
  • Steam Cleaning
  • Cooling Systems
  • Injection Molding
  • Medical
    		• N/A
  • General Industry
  • Marine
  • Food & Beverage
  • Fluid Transfer
  • Military
  • Breathing EquipmeLOC
  • Chemical
  • Carpet Cleaning .
  • Pressure Wash
  • Steam Cleaning
  • Cooling Systems
  • Injection Molding
  • Medical
    		• N/A
  • General Industry
  • Marine
  • Food & Beverage
  • Fluid Transfer
  • Military
  • Breathing EquipmeLOC
  • Chemical
  • Carpet Cleaning .
  • Pressure Wash
  • Steam Cleaning
  • Cooling Systems
  • Injection Molding
  • Medical
    		• N/A
  • General Industry
  • Marine
  • Food & Beverage
  • Fluid Transfer
  • Military
  • Breathing EquipmeLOC
  • Chemical
  • Carpet Cleaning .
  • Pressure Wash
  • Steam Cleaning
  • Cooling Systems
  • Injection Molding
  • Medical
    		• N/A
  • General Industry
  • Marine
  • Food & Beverage
  • Fluid Transfer
  • Military
  • Breathing EquipmeLOC
  • Chemical
  • Carpet Cleaning .
  • Pressure Wash
  • Steam Cleaning
  • Cooling Systems
  • Injection Molding
  • Medical
    • 1 Nominal
    • 2 Pressure ratings are for sockets and plugs with threaded end connections. Pressure ratings of couplings with hose stems may be signifi cantly lower, and will depend on the type of hose and the method of clamping. Refer to hose manufacturer’s end connection pressure ratings. The best way to determine suitability for an application is to run pressure testing under controlled conditions.