QF-40C3 Gas Cylinder Valve

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The QF-40C3 is a cylinder valve for carbon dioxide service. It uses a 90° cone seat.

The cylinder inlet and equipment outlet are specified separately for connection matching. Check both interfaces and the sealing arrangement against the mating components when selecting this exact model.

Key advantages

Carbon dioxide — A cylinder-valve configuration for carbon dioxide service.
Cone-seat connection — The defined cone seat helps identify the required mating sealing geometry.
Connection matching — Check the cylinder-side and equipment-side connections independently for this model.

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Specifications

Parameter	Value
Applicable medium	Carbon dioxide
Working pressure	20 MPa
Gas-tightness test pressure	30 MPa
Proof test pressure	45 MPa
Safety device	30 MPa
Cylinder / inlet connection	PZ27.8(25E)
Outlet connection	SI21.7-14-RH-EXT/NF E-29-650
Connection sealing form	90° cone seat
Body material	HPb59-1
Stem material	HPb59-1
Handwheel material	ZL102
Temperature range	-40 °C to 60 °C
Manufacturing standard / reference	GB/T 15382

Technical Illustration

For reference. Not to scale.

Product Configurator

Model	Gas	Working pressure	Inlet	Outlet	Sealing
QF-40C3	Carbon dioxide	20 MPa	PZ27.8(25E)	SI21.7-14-RH-EXT/NF E-29-650	90° cone seat
Your request	Gas request	Working pressure request	Inlet request	Outlet request	Sealing request

Special requirements are subject to technical confirmation. Your requests do not change the standard product specifications.

Company catalogue

No approved company catalogue is currently available. You can request specific product documents through Technical Matching.

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