METALOK INDUSTRIES

CHECK VALVE NPT FEMALE X NPT FEMALE

CHECK VALVE NPT FEMALE X NPT FEMALE

wE offers high-performance Check Valves with NPT Female x NPT Female connections designed to allow unidirectional flow and prevent reverse flow in a wide range of industrial systems. These valves are ideal for applications involving gases, liquids, and steam, and are commonly used in process control, instrumentation, oil & gas, chemical plants, and power generation.

  • Connection Type: NPT Female x NPT Female
  • Thread Standard: ASME B1.20.1 (NPT)
  • Available Sizes: 1/4″, 3/8″, 1/2″, 3/4″, 1″, 1-1/2″, and 2″
  • Pressure Rating: Up to 6000 psi (depending on size and material)
  • Cracking Pressure: Standard 1/3 psi (custom cracking pressures available on request)
  • Temperature Range: -20°C to 200°C (standard), higher with special materials/seals
  • Body Material Options: SS316 / SS304, Carbon Steel, Brass, Duplex / Super Duplex, Monel / Hastelloy (on request)
  • Seal Material Options: Viton, PTFE, NBR, EPDM, Kalrez
  • Compact, low-pressure drop design
  • Suitable for both horizontal and vertical installations
  • Prevents backflow to protect sensitive equipment
  • Reliable sealing with low cracking pressure
  • Easy installation with NPT threaded ends
  • Compatible with a wide range of industrial fluids and gases
  • Durable construction for extended service life
  • Fully tested for pressure, leakage, and functionality
NPT Size (inches)Orifice Diameter (mm)Body Length (L) mmHex Size (H) mmCracking PressureMax Pressure (psi)
1/4″5.556190.33 psi (standard)6000
3/8″7.562220.33 psi6000
1/2″9.567270.33 psi6000
3/4″12.082320.33 psi4500
1″15.097410.33 psi4500
1-1/2″25.0120550.33 psi3000
2″32.0150700.33 psi3000

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