China’s high-quality manufacturer of stainless steel lug butterfly valves. We can process products of various standards and materials according to needs.
Stainless Steel Lug Butterfly Valve can handle switch or Gear Operated, Valve body can choose SUS304, SUS316; The valve plate has SUS304, SUS316, dual-phase steel 2507, etc., the seat is mainly made of PTFE, EPDM, NBR, etc
Stainless steel lug type butterfly valve
Stainless steel lug butterfly valve, which can be driven by aluminum alloy handle or worm gear box, namely handle lug type butterfly valve, worm gear lug type butterfly valve; if customer needs, it can also be installed as electric actuator, pneumatic actuator, and become an automatic control electric actuator Lug Butterfly Valve, Pneumatic Lug Butterfly Valves. The structure is a centerline type, and the sealing structure is a soft seal – the optional valve seats are EPDM, PTFE, NBR, etc.; only need to rotate 90 degrees, it can be switched on and off, and the operation is simple. When the lug butterfly valve is fully opened, the only resistance to the flow of the medium through the thickness of the valve plate, so the pressure drop generated by the lug butterfly valve is very small, so it can be used as a valve to adjust the flow.
Lug type Butterfly Valve Main parts and materials
Body material: QT450, WCB, CF8, CF8M
Seat material: EPDM, PTFE, NBR
Valve plate material: QT450, CF8, CF8M
Standards: API, JIS, EN, DIN, etc.
Connection method: lug clip
Valve structure: centerline butterfly valve
| NO. | Accessory name | Material |
| 1 | Body | CF8/CF8M |
| 2 | Seat | PTFE/EPDM/NBR |
| 3 | Disc | CF8/CF3M |
| 4 | Pin | CF8/CF3M |
| 5 | Stem | 416 |
| 6 | Nut | SUS304 |
| 7 | Handle | Aluminum alloy |
| 8 | Worm gear | Aluminum alloy |
Gear Operated Stainless steel lug butterfly valve
The flange connection standard can be made into ASME/ANSI B16.5, EN PN16/PN10, JIS 10K size according to customer’s needs. The flange plate conforms to ISO 5211. Confirm the electric or pneumatic actuator arrangement for the selected valve. Stainless steel lug butterfly valve is suitable for water, sewage, air, oil and other media, but the choice of it at the same time need to be clear medium type, convenient for us to choose the most suitable material.
Frequently Asked Questions
Can I remove the downstream pipe while this lug butterfly valve remains closed?
Only where the exact valve configuration is explicitly approved for the required end-of-line duty and operating conditions. Confirm the valve design, bolting arrangement, seat requirements and applicable rating before planning downstream removal. A lug connection alone does not establish this capability.
What information is needed to choose an EPDM, PTFE or NBR seat?
The page lists these seat options. Provide the actual medium, operating pressure and temperature and confirm the complete wetted-material configuration for the order. Do not treat the listed materials as interchangeable or assume a single operating range for all of them.
Should I choose the handle or worm-gear version of this lug valve?
Confirm the required operating torque, valve size, duty and available operating space. The page describes both handle and worm-gear arrangements; identify the selected configuration in the order and confirm that its operation suits the installation.