Worm Gear DI Body Lug Type Butterfly Valve

Worm Gear also called gearbox or hand wheel in butterfly valve. Ductile Iron body lug type butterfly valve with worm gear is common used in water valve for pipe. From DN40-DN1200 even larger lug type butterfly valve, we also can use the worm gear to open and close the butterfly valve. Ductile Iron body is suitable for a wide range of medium.Such as water, wast water,oil and etc.

Size: 2”-160”/DN50-DN4000

Pressure Rating: PN10/16, JIS5K/10K, 150LB

Warranty: 18 Month

Brand Name: ZFA Valve

Service: OEM

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Product Detail

Size & Pressure Rating & Standard
Size	DN40-DN1600
Pressure Rating	PN10, PN16, CL150, JIS 5K, JIS 10K
Face to Face STD	API609, BS5155, DIN3202, ISO5752
Connection STD	PN6, PN10, PN16, PN25, 150LB, JIS5K, 10K, 16K, GOST33259
Upper Flange STD	ISO 5211
Material
Body	Cast Iron(GG25), Ductile Iron(GGG40/50), Carbon Steel(WCB A216), Stainless Steel(SS304/SS316/SS304L/SS316L) , Duplex Stainless Steel(2507/1.4529), Bronze, Aluminium Alloy.
Disc	DI+Ni, Carbon Steel(WCB A216), Stainless Steel(SS304/SS316/SS304L/SS316L) , Duplex Stainless Steel(2507/1.4529), Bronze, DI/WCB/SS coated with Epoxy Painting/Nylon/EPDM/NBR/PTFE/PFA
Stem/Shaft	SS416, SS431, SS304, SS316, Duplex Stainless Steel, Monel
Seat	NBR, EPDM/REPDM, PTFE/RPTFE, Viton, Neoprene, Hypalon, Silicon, PFA
Bushing	PTFE, Bronze
O Ring	NBR, EPDM, FKM
Actuator	Hand Lever, Gear Box, Electric Actuator, Pneumatic Actuator

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Product Advantage

Small size, light weight and easy maintenance. It can be installed wherever needed.

Simple and compact structure, 90-degree quick switch operation.

The flanged butterfly valve disc has two-way bearings, good sealing and no leakage during pressure test.

The flow curve tends to be straight. Excellent adjustment performance.

Can be used to cut and condition media.

Body test: 1.5 times the working pressure of water. The test is carried out after the valve is assembled, and the valve disc is in the half-open position, which is called the valve body hydraulic test.

Seat test: water at 1.1 times the working pressure.

Functional/Operational Test: At final inspection, each valve and its actuator (flow lever/gear/pneumatic actuator) undergo a complete operational test (open/close). The test is performed without pressure and at ambient temperature. It ensures proper operation of the valve/actuator assembly, including accessories such as solenoid valves, limit switches, air filter regulators, and more.

The lug valve is mainly used for pipeline flow, pressure and temperature control in various industrial automation production, such as: electric power, petrochemical, metallurgy, environmental protection, energy management, fire protection system and butterfly valve sales.

At the same time, the lug valve has good fluid control performance and is easy to operate.

They are not only widely used in general industries such as petroleum, gas, chemical, water treatment, etc., but also in the cooling water system of thermal power plants.

16 years valve manufacturing experience.

Company Advantage

Our valves are compliance with valve international standard of ASTM, ANSI, ISO, BS, DIN, GOST, JIS, KS and so on. Size DN40-DN1200, nominal pressure: 0.1Mpa~2.0Mpa, suitable temperature:-30℃ to 200℃. The products are suitable for non-corrosive and corrosive gas, fluid, semi-fluid, solid, powder and other medium in HVAC, fire control, water conservancy project, water supply and drainage in urban, electric powder, petroleum, chemical industry, and so on.