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McMaster 7739K178 High-Pressure Galvanized Steel Pipe Fitting Union Straight Connector, 1-1/2 NPT Female
McMaster 7739K178 High-Pressure Galvanized Steel Pipe Fitting Union Straight Connector, 1-1/2 NPT Female
McMaster 7739K178 High-Pressure Galvanized Steel Pipe Fitting Union Straight Connector, 1-1/2 NPT Female

McMaster 7739K178 High-Pressure Galvanized Steel Pipe Fitting Union Straight Connector, 1-1/2 NPT Female

$106.28 - $106.28
$106.28
$106.28 - $106.28
$106.28

A galvanized finish gives these fittings better corrosion resistance than our plain steel high-pressure fittings. Also known as Pressure Class 3000 fittings, they have excellent strength to handle high-pressure applications.

Union connectors separate into three pieces so you can access your line without unthreading pipe connections.

For Use With Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water 
Shape Straight 
Type Connector, Union 
Body Shape Hex 
Pressure Class 3000 
Fabrication Forged 
Connection Type Pipe 
Connection Style Threaded 
Connection NPT Female 
Pipe Size 1 1/2 
Dash Size 24 
Length 3 3/64" 
Hex Width 3 27/64" 
Maximum Pressure 3,000 psi @ 72° F 
Maximum Steam Pressure 300 psi @ 360° F 
Material Galvanized Steel 
For Pipe Schedule 160 
Specifications Met ASME B1.20.1, ASTM A105, ASTM B633, MSS SP-83 
RoHS RoHS 3 (2015/863/EU) Compliant 
REACH REACH (EC 1907/2006) (01/21/2025, 247 SVHC) Compliant 
DFARS Specialty Metals COTS-Exempt 
Country of Origin United States 
USMCA Qualifying Yes 
Schedule B 730799.2000 
ECCN EAR99