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PRODUCTS / Concentric Butterfly valves / PTFE Seated Butterfly valves

Jeongdo Machinery’s Concentric PTFE Seated Butterfly Valve is designed for use with chemicals, corrosive fluids, and ultrapure water systems, utilizing PTFE material for both the disc and seat to ensure excellent chemical resistance.
Available in Wafer, Lugged, and Flanged types depending on connection requirements.

Concentric - PTFE LIined - Wafer

This valve features a PTFE-lined seat for excellent chemical resistance.

4 or more Guide Holes ensure easy installation.

Option 1.
Oil-Free & Oil Removal: For DI water / UPW
(cleanroom processed)
Operator
Lever, Gear, Gear (with Lock Device), Gear (with Limit Switch), Gear Box Chain, Pneumatic actuator, Electric actuator
Certification
ISO 9001 CE/PED

Features and benefits

1. Bushing (4ea)
Reduce torque and absorb shock during stem rotation, ensuring smooth and stable operation.
2. O-Rings & V-Packings
Effectively prevent shaft leakage.
3. One-Piece Stem
Rigid design with minimal deformation under pressure; ensures excellent sealing performance.
4. Guide Hole
Equipped with 4 Guide Holes for easy alignment and accurate installation during piping assembly.
5. Seat
The PTFE-lined rubber seat provides excellent chemical resistance.
The inner rubber layer supports the PTFE lining to prevent deformation or damage, resulting in outstanding sealing performance.
6. Disc
Manufactured using Investment casting for a smooth and uniform surface.
The hemispherically machined sealing edge minimizes torque and provides superior sealing reliability.

TECHNICAL SPECIFICATIONS

Design Standards
Design Standards
Valve Design API 609 Category A
ASME B16.34
MSS-SP 67
Flange Drilling ASME B16.5
Face to Face API 609, ISO 5752
Specfication
Specfication
Body Type Wafer / Lugged / Flanged
Size 1.5 " ~ 64"
Flange Connection ASME 150
PN 10
Temperature Range PTFE (-20℃~120℃)
PFA (-20℃~120℃)
Material Option
Material Option
Body Cast Iron, Ductile Iron
A216-WCB
A351-CF8 / CF8M / CF3M
DISC A351-CF8 / CF8M
A351-CF8+PTFE / CF8M+PTFE
A351-CF8+PFA / CF8M+PFA
Stem SS420
SS316
Seat PTFE LINED EPDM
PTFE
PFA

DOWNLOAD

Catalog
IMO
Instruction Manual
Certification
You may also check out other models.

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