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

ANSI Z21.80 Gas Regulator & Valve Inlet Filter Screen Specifications

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 for catching pipe scale, sealing tape fragments and debris at the inlet of gas regulators, safety shut-off valves and burner controls. ANSI Z21.80 is the reference cited for it on drawings, datasheets and purchase orders.

What ANSI Z21.80 Means for Gas Regulator & Valve Inlet Filter Screen

The dimensions in the table below are supplied to suit ANSI Z21.80. Where the standard sets requirements for the finished appliance, device or system, compliance testing of that assembly stays with its manufacturer; we supply the metal mesh part to the drawing and can provide material certificates and dimensional reports with the shipment.

Gas Regulator & Valve Inlet Filter Screen Dimensions

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

Specifying Gas Regulator & Valve Inlet Filter Screen Beyond the Standard

  • 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.

When 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.

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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Specification
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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

Can a gas inlet screen be cleaned?

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

Why do gas valves have inlet screens?

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

How do I request a quotation?

Use the technical drawing on this page to pick the exact specification, then submit it with the quote form. We respond within one business day.