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Nickel-plated brass axial valve trap with FNPT connections

Legris

Legris 4203 10 18 20 Axial Valve Trap 3/8" FNPT

SKU CH-BCGT-DANSX MPN 4203

A normally-closed axial valve with 3/8" FNPT connections, 150 psi maximum pressure and FKM seals

  • TypeDrain Components
  • MaterialHAWA
  • Axial valve with 150 psi maximum operating pressure for reliable fluid control
  • Nickel-plated brass body resists corrosion in demanding plumbing applications
  • FKM seals withstand -4 °F to 275 °F temperature range for versatile use
  • 3/8" FNPT x 3/8" FNPT connections simplify inline installation
  • 60 psi minimum pilot pressure ensures dependable actuation with standard air supply

3/8" FNPT Axial Valve

This Legris 4203 axial valve provides on-off control for compressed-air or fluid lines with 3/8" FNPT connections on both ports. The nickel-plated brass body and FKM seals handle a maximum operating pressure of 150 psi and temperatures from -4 °F to 275 °F. A 1/8" FNPT pilot port actuates the normally-closed valve between 60 psi and 115 psi pilot pressure. Overall length is 3.6 in and hex size is 22 mm for installation.

Suits pneumatic systems needing compact NC valve

Builders who need a normally-closed axial valve with 3/8" FNPT ports and pilot actuation will find this unit matches the specified pressure and temperature range. Systems requiring a normally-open function, larger pipe sizes, different pilot-port threads or higher pilot-pressure limits are not addressed by this model. Applications outside the -4 °F to 275 °F or 150 psi service envelope should look elsewhere.

1/8" FNPT pilot port controls NC operation

The single specification that decides fit is the 1/8" FNPT pilot port which requires 60 psi minimum and 115 psi maximum pilot pressure to shift the normally-closed valve. If the available pilot supply cannot meet that 60–115 psi window, the valve will not operate as intended. Confirm pilot pressure before selecting this part.

Highlights

  • Axial valve with 150 psi maximum operating pressure for reliable fluid control
  • Nickel-plated brass body resists corrosion in demanding plumbing applications
  • FKM seals withstand -4 °F to 275 °F temperature range for versatile use
  • 3/8" FNPT x 3/8" FNPT connections simplify inline installation
  • 60 psi minimum pilot pressure ensures dependable actuation with standard air supply

Specifications

TypeDrain Components
MaterialHAWA
BrandLegris
Model4203 10 18 20

Questions about this item

What thread size and hex size are needed to install the 4203 10 18 20 axial valve trap?

It uses 3/8 inch FNPT connections on both ports and requires a 22 mm hex for tightening.

How is the valve actuated and what pilot pressure range must be supplied?

It is a normally closed axial valve operated by a 1/8 inch FNPT pilot port requiring 60 to 115 psi pilot pressure.

Which seal material is used and what temperature range does it cover?

FKM seals handle the full operating range from -4 °F to 275 °F.

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