PFA Lined Valves
Lug Type Lined Butterfly Valves
Size: 2” – 96” DN50-DN24000
Pressure: Class 150, PN16
Body Material: ASTM A216 WCB, A351 CF8/CF8M
Seat: PTFE PFA FEP
Disc Material: CS+PFA or SS+PFA (FEP material also is available)
End Connection Standards: GB/T, JIS, DIN, API
Technical Specification
• Basic Design: API 609
• Wafer End: ASME B16.5, Class 150, RF
• Face to face: ASME B16.10
• Inspection and Testing: API 598
Product Description:
ISO 5211 Mounting Pad for Easy & Quick actuator installation
Positioning holes keep valve in the center between pipe flanges and also applied to many international standards.
Three different sealing ensure PFA lined butterfly valve in high performance.
Three self-lubricating bushing could keep stem not be deformed under pressing.
When two back-up Belleville springs under pressing, it will makes sealing among body seat, tapered seal ring and disc edge more tightness
Epoxy coating with baked finishing before valve assembly, keep inner body can’t be rusted.
Media temperature: -20℃ to 200℃
Available body material: Carbon steel, Stainless steel, Cast iron, Ductile iron
Available design standard: JIS B2032, DIN EN1092
PFA Lined Diaphragm Valves
High reliability due to thick-walled PFA lining and diaphragms made of PTFE
Reliable as "floating" connection diaphragm to stem
Long service life: diaphragm made of PTFE
Clean-room applications possible
Size Range 0.5" ~ 12" DN15 ~ DN 300
1.Design and manufacture:GB12239
2.Face to face:EN558-1
3.Flanged ends:EN1092-1
4.Testing and checking:API 598
PFA Lined Ball Valve
Reliable on-off isolation, and modulating control for all industrial anti-corrosion applications.
Size：1/2" ~ 24" DN15~ DN600
Technical Specification
• Basic Design: ASME B16.34
• Flange End: ASME B16.5, Class 150, RF
• Face to face: ASME B16.10
• Inspection and Testing: API 598
Product Description:
1-One piece ball/stem design PFA lined ball valve, this design is good for avoids weak spot stem to ball.
2-Body inside and ball full of PFA lining with Locked-In design to avoid negative pressure.
3-Self adjusting "MAZE" type stuffing box design make stem seal perfect.
4-ISO 5211 mounting pad easy for actuator connecting.
5-Stainless steel lever with lockable design
6-Maintenance free
Swing check valve
Chobo fully lined swing check valves are ideal for use in highly corrrsive applications due to the universal chemical resistance of fluorpolymer lining. These valves can be used in horizontal and vertical installations due to the special design of the hinge pin, which enables the disc to achieve a seal with out support of any system pressure. 2 Piece design eliminating a potential leak path with a seat face integrated in the body liner to seal against the disc in the closed position. The disc can swing feely within piping system without interference with the diameter of the connecting pipe
PFA Lined ball check valve
ball check valves are developed for use on fluids compatible with the corrosion resistant characteristics of virgin PFA. These valves can be used in horizontal and vertical installations. The body of the valve is made from a combination of ductile iron and steel. The body parts do not come into contact with the process flow.
Lined ball check valve sight glass
With pressure rating up to 19 bargs, the Chobo ball check valves sight glass are very robust, having integrated borosilicate windows each side of the ball check assembly makes it very easy to see if there is flow through the valve. No wetted metal parts are used. The valves are immune to most aggressive chemicals and are used in place of expensive exotic alloys.
Wafer Type Lined Butterfly Valves
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Lined Plug Valve
straight through lined plug valves provide unristricted flow when fully open, and are also operable in a throttled position. The moulded liner assure excellent chemical resistance and long service life. DOXI products are manufactured using latest production methodology backed by continuing quality control form raw materials to finish products to ensure the highest possible quality standards
PFA Lined Check Valves
Ball type Check Valve
PFA lined carbon steel body
Pure PTFE Ball
Maximum reliability: body PFA lining 4 - 5 mm
ASME/ISO design, with solid ball,can be installed vertically and horizontally
Can also be used for vapours and gases
Combine ball check valve and sight glasses
Vacuum-resistant
Suitable vapours, gases and liquids
Maximal protection by Borosilicate glass panes
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