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Home, HVAC & Safety Mesh · ANSI Z21.80 / EN 88-1 · Application guide

What Is Gas Regulator & Valve Inlet Filter Screen Used For?

A small cup-shaped stainless steel mesh inlet filter screen next to a brass gas pressure regulator on a workbench

Gas Regulator & Valve Inlet Filter Screen is used primarily for catching pipe scale, sealing tape fragments and debris at the inlet of gas regulators, safety shut-off valves and burner controls. This page lists the industries and assemblies where it is specified, the selection criteria that matter for each application, handling and installation practice, and the cases where a different mesh, screen or filter type is the correct choice. It is supplied to ANSI Z21.80 / EN 88-1.

Typical Applications for Gas Regulator & Valve Inlet Filter Screen

Where Gas Regulator & Valve Inlet Filter Screen is specified and bought:

  • Gas appliance OEMs: valve inlet screens in boilers, water heaters and furnaces.
  • Gas utilities: service regulator inlet screens.
  • Industrial burners: gas-train inlet strainers.
  • Outdoor heaters & grills: regulator screens on propane systems.

How to Specify Gas Regulator & Valve Inlet Filter Screen for Your Application

  • Size: Matched to the 1/2, 3/4 or 1 in inlet.
  • Mesh: 80–120 mesh stops particles that would hold a valve seat open.
  • Material: SS304, compatible with natural gas and LPG.
  • Standard: Quote ANSI Z21.80 / EN 88-1 and the size designation from the table on the product page, plus any value you changed in the technical drawing.

Handling & Installation Practice

  • Install in the flow direction marked on the regulator.
  • Leak-test every joint with approved solution after installation.

Common Selection Mistakes with Gas Regulator & Valve Inlet Filter Screen

  • Removing the screen to cure low pressure, exposing the valve seat.
  • Using sealing tape loosely so fragments reach the screen.

Where Gas Regulator & Valve Inlet Filter Screen Is Not the Right Choice

Not a substitute for a dedicated gas line filter where heavy dust is present.

If This Construction Is Not the Right Fit

Closely related mesh types for the same duty — compare open area, aperture range and cleanability before you commit.

Reusable Stainless Steel Water Filter CartridgeReusable Stainless Steel Water Filter CartridgeNSF/ANSI 61 housings (10 in / 20 in)Hydrophobic Mesh Moisture-Eliminator Air FilterHydrophobic Mesh Moisture-Eliminator Air FilterAMCA 500-L / ASHRAE 62.1Pool Skimmer & Pump Strainer BasketPool Skimmer & Pump Strainer BasketNSF/ANSI 50Gas Appliance Burner & Flame Arrestor MeshGas Appliance Burner & Flame Arrestor MeshEN 437 / ANSI Z21 appliance

Technical Drawing

Customize the parameters below — every spec field is editable, and the drawing redraws to match the values you choose. Changing the size will snap the other fields to that size's standard values; you can then override any individual value.

Sends the selected values to the quote form below.

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Set the size and options in the drawing above, then send the exact configuration straight to this form.

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Specification
Business Information

Dimensions & Specifications (ANSI Z21.80 / EN 88-1)

SizeDiameter (mm)MeshMicron rating (u00b5m)Format
1/2 in1580-Mesh SS304178Pressed cup
3/4 in2080-Mesh SS304178Pressed cup
1 in26100-Mesh SS304154Flat disc + ring
Burner valve 1010120-Mesh SS304122Pressed cup

Frequently Asked Questions

What is Gas Regulator & Valve Inlet Filter Screen used for?

Catching pipe scale, sealing tape fragments and debris at the inlet of gas regulators, safety shut-off valves and burner controls.

Why do gas valves have inlet screens?

To keep debris off valve seats so the valve closes tightly.

What mesh is used for gas inlet screens?

About 80–120 mesh stainless.

Can a gas inlet screen be cleaned?

Only by qualified personnel, with the gas isolated and leak-tested afterwards.

Can I get a quote for Gas Regulator & Valve Inlet Filter Screen to my own drawing?

Yes. Set the size and any custom value in the technical drawing on the product page and send it with the quote form; we reply within one business day.