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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 Seated - Wafer

A product in which the seat, disc, and packing components are all made of PTFE, offering excellent chemical resistance and sealing performance.

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
Prevent shaft leakage and maintain sealing integrity.
3. Guide Hole
Equipped with 4 Guide Holes for accurate alignment and easy installation during piping assembly.
4. Wide Sealing Face
The seat features a broad contact surface with the flange, providing structural stability.
It also acts as a gasket, eliminating the need for a separate gasket.
5. Seat
Constructed with PTFE for excellent chemical resistance.
The internal rubber layer supports the PTFE lining, preventing deformation or damage and ensuring reliable sealing performance.
6. Disc
The disc surface is molded with PTFE or PFA, forming a fully integrated structure.
Precision-machined sealing surfaces ensure low operating torque and superior sealing capability.

TECHNICAL SPECIFICATIONS

Design Standards
Design Standards
Valve Design API 609 Category A
ASME B16.34, KS B 1511
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
KS JIS 10K/16K/20K
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.

NOTICE

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