Lug Butterfly Valve Manufacturers-Concentric Butterfly Valve with Worm Gear Operator

Introduction:

Lug Butterfly Valve Manufacturers-Concentric Butterfly Valve with Worm Gear Operator features a disc that rotates around a central axis within the valve body. In a concentric design, the disc is centered both in the flow passage and relative to the valve seat. The concentric design ensures good sealing performance, reducing leakage and providing reliable shut-off. When the worm gear operator is actuated, the worm gear meshes with the worm wheel, converting rotational motion to precisely control the opening and closing of the disc, thereby regulating the flow of fluid through the valve.

Product Feature：

  100% bi-directional tight shut-off.

Installation without restriction in direction of flow.

Reduced weight and overall dimensions.

Low pressure loss and reduced energy costs.

High Kv / Cv values.

Easy to clean and disinfect for potable water systems etc.

Self cleaning ( no residue will be trapped ).

Good resistance to corrosion.

Technical Parameters：

Size	DN32-DN600	DN650-DN2000
Working pressure	16Bar	10Bar
Shell	24Bar	15Bar
Seal	18Bar	11Bar
Operating Temperature	-45℃~+150℃
Operating Environment	Ballast and bilge system          Chemical processing Desalination plants   Drilling rigs    Drinking water Dry powder     Food and beverage     Gas plants HAVC  Mining industry  Paper industry    Sand handling     Seawater    Sugar industry Thermo technical water treatment   Waste water
Driving  method	Hand  Lever  Worm Gear  Electric  Pneumatic

Main Material:

Name	Material
Body	Cast Iron  Ductile Iron  Carbon Steel  Stainless Steel  AL-Bronze
Disc	Ductile Iron  Carbon Steel Stainless Steel  AL-Bronze
Shaft	Stainless Steel  Monel K500
Seat	BUNA  NBR  EPDM  VITON  PTFE  HEPDM  Neoprene  Hypalon Natural rubber

Executive Standard:

Design Standard	EN 593 , MSS SP67   API 609  BS5155
Inspection & Test	API 598  ISO 5208  EN 12266
End Standard	ANSI B16.1 CL. 125LB & B16.5 CL. 150LB AS 2129 Table D & E   BS 10 Table D & E DIN 2501 PN6, PN10 & PN16 EN 1092 PN6, PN10 & PN16 ISO 2531 PN6, PN10 & PN16 ISO 7005 PN6, PN10 & PN16 KS B 1511 / JIS B 2210 5K & 10K MSS SP44 CL. 150LB  AWWA C207 SABS 1123 Table 1000/3 & Table 1600/3
Face to Face	ISO 5752 , EN 558 , MSS SP67 and API 609 DIN3202
Top Flange	ISO 5211

Conclusion:

In summary, the concentric butterfly valve with worm gear operator is a reliable and efficient valve solution for a wide range of fluid control applications, valued for its performance, durability, and ease of operation.