Description
PTFE lined double flange butterfly valve
Double flanged butterfly valve PTFE lined is high performance flanged butterfly valve with PTFE lined, which is widely used in the chemical industry and food industry. Our PTFE lined butterfly valve has special gland structure, which can be adjustable, in this case the PTFE line valve has better sealing performance. And it’s with direct mounting pad ISO 5211 standard, which make it be mounted with pneumatic actuator or electric 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. Flowspec Luokai can manufacture the double flanged butterfly valve PTFE lined according to standard of GB/T12238, ASME B16.34 with sizes of 1-1/2”~20” (DN40~500mm).
1. FEATURES
- Double flanged ends
- Quick 90° on-off operation
- Bidirectional seal, 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 B16.10
- Flange standard: HG/T 20592, 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)
- 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
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