Pneumatic Lug Butterfly Valve PTFE Lined
PN10~PN25 / CL150LB
1-1/2”~20” (40~500mm)
Steel, Stainless Steel
Pneumatic Lug Butterfly Valve PTFE Lined Product Information
Pneumatic lug butterfly valve PTFE lined is one type of lug type PTFE lined butterfly valve mounted with double action or single action pneumatic actuator, which is mounted between two matching flanges of the piping. And our PTFE lined butterfly valve has special gland structure, which can be adjustable, in this case our PTFE lined valve has better sealing performance. And it’s with direct mounting pad ISO 5211 standard, which make it be mounted with pneumatic actuator directly, no need mounting another bracket. Because this type of PTFE lined butterfly valve is with materials of steel and stainless steel, it can work with bigger pressure up to 25bar or even 300LB. According to actual piping conditions, wafer type butterfly valve can be manufactured according to different flanges standards, such as ASMEB16.5, JB78, JB79, JIS10K, EN1092. Lug type butterfly valve can be also mounted on the piping end as exhaust valve. Flowspec Luokai can manufacture the pneumatic lug butterfly valve PTFE lined according to standard of GB/T12238, ASME B16.34 with sizes of 1-1/2”~20” (DN40~500mm).
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1. FEATURES
- Simple and compact construction
- Small in size and light in weight
- Quick 90° on-off operation, low torque
- Good sealing capability, no leakage
- With direct mounting pad, can be mouted with actuator directly, no need mounting the bracket for actuator.
- The gland is adjustable, better sealing performance
- Can put the valve internal parts out for repair or maintenance by disassembling the gland, no need assembling the butterfly valve off from the pipe
3. STANDARDS
- Design & manufacturing: GB/T12238, ASME B16.34
- Face to face: GB/T 12221, ASME B16.34
- Matching flanges: JB78, JB79, ANSI B16.5
- Top flange: ISO 5211
- Inspection & testing: GB13927, API598
2. TECHNICAL SPECIFICATIONS
- PN10 / PN16 / PN25 / 150LB / 300LB
- Size: 1-1/2”~20” (DN40~500mm)
- Materials: steel (A216 WCB), stainless steel 304 (CF8), stainless steel 316 (CF8M), stainless steel 304L (CF3), stainless steel 316L (CF3M)
- Pneumatic actuator: double acting or single acting (AT type)
- Applicable medium: water, sewage, sea water, air, oil, acid, alkali, corrosive liquids
- Applicable temperature: -29℃~+120℃ (higher temperature is available upon request)
4. APPLICATIONS
- Water works, water projects
- Environment protection
- Textile, printing & dyeing mill
- Power plant
- Petroleum, chemical industry
- Steel work, metallurgy
- Paper plant
- Food & beverage
Why Choose Flowspec Luokai
45+ Years Experience
Founded in 1978, manufacturing industrial valves for over four decades with proven reliability worldwide.
Global Certifications
ISO 9001, CE/PED, WRAS, FM, UL, API approved — compliant with international quality and safety standards.
OEM Custom Solutions
Flexible design and manufacturing per your specifications — material, size, pressure, actuation tailored to project needs.
Worldwide Delivery
Exported to 5 continents — North & South America, Europe, Middle East, Southeast Asia, and Africa.
Our Service Promise
Strict Quality Control
Every valve tested to API 598, EN 12266 before shipment
Timely Global Delivery
Reliable logistics to 5 continents with secure packaging
OEM & Custom Design
Tailored material, size, pressure and actuation to your specs
Dedicated After-Sales
Technical support and service throughout product lifecycle


