Lug Type Butterfly Valves Made in Tianjin China
Lug type butterfly valves with threaded lugs on both ends, designed for use in pipe systems where one side of the valve must be isolated and removed under pressure without disturbing the other side.
Lug Type Butterfly Valves Available From Stock Drawings
Model codes as they appear on our production drawings. Sizes and pressure ratings for each code are confirmed on quotation.
DL3B005 Worm Gear Actuator Lug Type Butterfly Valve No Pin
View Specification
DL3B001 Lug Butterfly Valve No Pin and Spline Spindle
View Specification
DL3A001 Lug Butterfly Valve Pin Type and Gearbox
View Specification
DLC002 Lug Butterfly Valve 2pc Shaft
View Specification
DLC001 Lug Butterfly Valve Half Axle
View Specification
DLB101 Lug Butterfly Valve No Pin PTFE Seat
View Specification
DLA101 Lug Butterfly Valve with Pin PTFE Seat
View Specification
DLA010 Lug Butterfly Valve DN250 Malleable Iron Hand Lever
View Specification
DLA005 Lug Butterfly Valve Malleable Iron Hand Lever
View Specification
DLA004 Lug Butterfly Valve Carbon Steel Hand Lever
View Specification
DLA002 Lug Butterfly Valve Carbon Steel Hand Lever
View Specification
DLA001 Lug Butterfly Valve Vulcanized Seat and Bare Shaft
View SpecificationBuyers This Category Suits
- Water utility contractors installing isolation valves in tight spaces with limited flange access
- Pump and skid builders needing valves that can be removed from one side under pressure
- HVAC and fire protection installers standardising on lug valves for maintenance access
- Valve distributors stocking a full range of lug valves across nominal diameters
- EPC buyers packaging medium- and low-pressure valves for water, heating, and industrial scopes
What It Fixes on the Line
- Existing piping systems lack the space to remove a wafer valve without disconnecting both flanges
- Valves with no threaded lugs cannot be isolated and removed from one side while the system remains pressurised
- Mixed valve types across a project lead to inconsistent spare parts and higher inventory costs
- Small and mid-sized valves are often quoted as custom items with long lead times
- Buyers need a single supplier capable of covering both small and very large diameters in one order
Why Engineers Specify This Family
Advantage
Threaded lugs on both ends allow one side of the valve to be removed under pressure while the other remains connected
Advantage
Pinned and half-shaft disc connections provide reliable torque transfer and long-term sealing
Advantage
Resilient and PTFE seat options cover clean water, aggressive media, and high-temperature applications
Advantage
Actuation options include hand levers, gearboxes, and pneumatic or electric actuators, all fitted and tested before shipment
Advantage
The series spans DN10 to DN2600, enabling one supplier to cover the full diameter range across projects
Advantage
All components are manufactured in the same Tianjin facility under ISO 9001 and ISO 14001 systems
Where These Valves Are Installed
- Isolating pump suction and discharge lines in municipal water pumping stations with limited flange spacing
- Zone shut-off on building fire and service water risers where one side must remain connected
- Throttling cooling water return lines in power plant auxiliary systems with frequent maintenance access
- Batch isolation on process water headers in chemical and pharmaceutical plants requiring clean and safe operation
- Balancing duty on district heating secondary circuits running at low pressure with frequent maintenance
Industries and Guides for This Family
Water Supply and Drainage
Sectioning valves non-return protection and joints for distribution mains pumping stations and treatment works.
Shipping and Marine
Ballast cooling and service water isolation in compact machinery spaces.
How To Choose Between Wafer and Lug Butterfly Valves
The body style decides whether the valve can hold the line on its own. Here is how to pick without guessing.
Lug Type Butterfly Valves FAQ
Can a lug type butterfly valve be used at the end of a pipe run?
Yes. The threaded lugs on both ends allow the valve to be installed at the end of a line, with one side capped or blanked off.
Which seat should I choose for my medium?
Resilient seats suit clean and raw water and general service. PTFE seats and coated discs are used where the medium attacks rubber. Send the medium temperature and concentration and we confirm the seat.
What sizes are available in this family?
Our valve programme runs from DN10 to DN2600 across all families, and the lug type butterfly series covers the common water and process diameters. The exact size and pressure rating per model code are confirmed on quotation.
Can the valves be supplied with actuators fitted?
Yes. Levers, gearboxes, and pneumatic or electric actuators are fitted, set and tested at our plant before the valves are packed.
What certification does the factory hold?
Tianjin MIC Valve Co., Ltd. holds ISO 9001 quality management and ISO 14001 environmental management certification. Test records for your order are issued on request.
Do you supply mixed orders across families?
Yes. Butterfly valves, gate valves, check valves, joints, and strainers ship together in one container, which is how most project orders leave our plant.
Quote Lug Type Butterfly Valves for Your Project
Send the sizes, quantities and flange standard on your line list. Our engineers reply with a model-by-model quotation and a confirmed specification sheet.