Butterfly Valve Double Offset Design HG7 - Gefa Processtechnik GmbH

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Double-eccentric butterfly valve HG7

Lug typ valve, can be removed from the flange on one side

Technical data

Double offset valve with lugs for high pressure and temperature loads. Can be removed from the flange on one side. For installation between flanges EN 1092, PN 10/16/25/40, PS25 ASME Cl 150/300, PS25.

• Sizes: DN 50 to DN 600
• Temperature range: -50 °C to + 400 °C
• Vacuum: up to 1 mbar
• Face-to-face dimension: DIN EN 558 line 20 API 609 table 1
• Mounting flange: DIN EN ISO 5211
• Test: DIN EN 12266 P10 P11 P12 F20
• Marking: DIN EN 19, AD 2000

Industries and applications

• Water / Sewage
• Engineering
• Food industry
• Chemical, petrochemical and pharmaceutical industry
• Colouring, Varnish, Dyeing factories

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Materials

Body	Steel 1.0619, Stainless steel 1.4408
Disc	1.0619/nickel-plated, 1.4408, 1.4408/nitrated
Stem	Stainless steel 1.4571
Seat	PTFE/glass, PTFE/1.4571/graphite, PTFE/1.4571/nitrated+graphite
Bearing	1.4401/PTFE, 1.4571/nitrated
Gland packing	PTFE, graphite
Insert ring	C-steel, Stainless steel 1.4571

We are pleased to be at your disposal for further material requests. Please do not hesitate to contact us.

Further information

Product information HG Documentations HG7 Request CAD

Application examples

Use in tank farms

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Double-eccentric butterfly valve HG1

Double-eccentric butterfly valve HGF

Product group butterfly valves

• Two-piece butterfly valves - soft-seated
• Two-piece butterfly valves - PTFE-lined
• One-piece butterfly valves - soft-seated

• Double eccentric butterfly valves
• Triple eccentric butterfly valves
• Double flange butterfly valves

• Throttle valves
• Granulate and bulk material butterfly valve

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