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Manufacturers / Garlock

Garlock

Lined butterfly valves and the plastic-bodied Gar-Seal Series 400 — a long-established sealing and valve manufacturer, part of EnPro Industries, sourced by LibertyCES through its regional distribution relationship with Allied Fluid Products.

Product Families

What LibertyCES sources from Garlock

Garlock, founded in 1887 and now part of EnPro Industries, is a long-established manufacturer of gaskets, seals, and valves for chemical, petrochemical, and industrial process service. LibertyCES sources Garlock's lined butterfly valve line through its regional distribution relationship with Allied Fluid Products, not as a direct Garlock-authorized distributor.

Garlock lined butterfly valve family — lug and wafer style, official product photo
Lined Butterfly Valves
Lug & Wafer Style, 2"-24"

PTFE, UHMWPE, or PVDF liner options — lug and wafer body styles for sterile, corrosive, toxic, and abrasive service.

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Garlock GAR-SEAL Series 400 plastic butterfly valve, official product photo
Gar-Seal Series 400
Plastic Butterfly Valve

Plastic-bodied butterfly valve purpose-built for non-metallic pipe systems, rather than a metal body with a lined bore.

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Spec Data

Garlock — Real Catalog Spec Data

Product LineModelCategoryMaterialSize / CapacityTemp Rating
Lined Butterfly ValvesLug & Wafer StyleValvePTFE, UHMWPE, or PVDF liner2"-24"-
Gar-Seal Series 400Plastic Butterfly ValveValveplastic body (for non-metallic pipe)--

Sourced from Allied Fluid Products' line-card documentation for Garlock.

FAQ

Frequently Asked Questions

What's the difference between PTFE-lined and PVDF-lined butterfly valves?

PTFE liners offer the broadest chemical resistance across strong acids, bases, and solvents over a wide temperature range, which is why Garlock offers it as a liner option on its lined valve line. PVDF is also chemically resistant and holds up well mechanically, but it doesn't match PTFE's resistance ceiling against the most aggressive chemistries — which liner is correct depends on the specific media, concentration, and temperature in your system, so confirm against Garlock's own chemical compatibility data for your exact service before specifying.

What sizes are available in Garlock's lined butterfly valve line?

Garlock's PTFE, UHMWPE, and PVDF lined lug & wafer style butterfly valves are cataloged from 2" through 24".

What makes the Gar-Seal Series 400 different from Garlock's standard lined butterfly valves?

The Gar-Seal Series 400 uses a plastic body rather than a metal body with a plastic liner — it's purpose-built for installation into non-metallic pipe systems, where a metal-bodied lined valve wouldn't be the right match.

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Spec Review

Get the right lined valve for your line size and chemistry

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