28 INCH Lug Type Butterfly Valve, Chainwheel Gear Operated, CF8/CF8M Body

When a large-diameter valve is installed in a hard-to-reach location—above grade, on a high platform, or in a trench—standard handwheel operation becomes impractical. Engineered for accessibility, this 28-inch lug butterfly valve features a chainwheel gear operator, allowing your team to safely open or close the valve from floor level or a remote standing position.

We manufacture this valve with a CF8 (304) or CF8M (316) stainless steel body and disc, offering full corrosion resistance for chemical, marine, wastewater, and industrial process lines. The lug body design supports end-of-line service and easy maintenance without dismantling adjacent piping.

Series PT-LT
Type Concentric Resilient Seal
Size DN700, 28 INCH
Design Standard EN 593, API 609
Pressure Rating PN10/PN16/125LB/150LB/10K
Certificate ISO, CE, WRAS, ACS
Sample Available
Service OEM & ODM

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Description

Specifications

Dimension

Features

Operation Cycles	Over 15,000 times
Lugged Design	Strong and stable flange connection. Both threaded and through holes are acceptable
Corrosion Resistant	Stainless steel body for excellent corrosion resistance
Leakage Level	Bubbles-tight sealing with no leakage
Low Torque	Operation easy and flexible
Bidirectional Sealing	Any installation position
Lower Cost	Simple and compact structure with high cost-effectiveness
Low Flow Resistance	Improve fluid efficiency and reduce energy consumption
Application	Seawater, Saline Water
Certificates	ISO9001, CE, WRAS, ACS

Specifications

Design Standard	API 609, EN 593
Top Flange Standard	ISO 5211
End Flange Standard	ANSI 150LB
Face to Face Dimension	API 609, EN558-1 Series 20, BS5155, DIN3202 K1
Testing Standard	API 598, EN12266
Temperature	0℃~100℃(depends on the sealing material)
Body Material	CF8, CF8M, CF3M
Disc Material	CF8, CF8M, CF3M, 904L, 2205, 2507
Shaft Material	Stainless Steel, Inconel
Seat Material	NBR, EPDM, VITON, Silicone
Operator	Gearbox, Chain Gearbox, Pneumatic, Electric Actuator

Dimension

FAQ

Frequently Asked Questions

Everything you need to know about double eccentric butterfly valves, including design features, materials, applications and performance.

What is a stainless steel lug butterfly valve?

A stainless steel lug butterfly valve is a quarter-turn valve with a stainless steel body and lug-style mounting holes. It is designed for reliable shut-off and flow control in pipelines and can be installed between flanges or used for dead-end service.

What materials are available for stainless steel lug butterfly valves?

Common materials include CF8, CF8M, CF3M stainless steel. The seat can be supplied in EPDM, NBR, PTFE, or other materials depending on the medium and operating temperature.

What sizes are available?

Stainless steel lug butterfly valves are available in a wide range of sizes, typically from small-bore sizes up to large-diameter pipeline applications. Custom sizes may also be available according to project requirements.

What types of actuators can be used with Lugged butterfly valve?

The valve can be operated manually with a lever or gearbox, or automated with a pneumatic or electric actuator. Limit switches, solenoid valves, positioners, and other accessories can also be configured for automation.

What media can stainless steel lug butterfly valves?

Depending on the body, disc, seat, and sealing materials, they can be used for water, air, gases, seawater, chemicals, and various industrial fluids. Material compatibility should always be checked against the specific medium.