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GB/T 12237 PTFE-Lined Ball Valve - High Platform
FULL PTFE / PFA LINING · pH 0–14 RESISTANT · ISO 5211 MOUNT
Full PTFE / PFA lined ball valve for strong acid, strong alkali,
and oxidizing chemical media. Complete isolation of CF8M
body from process fluid via factory-bonded fluoropolymer
lining — pH 0–14 service range. Optional PFA lining extends
temperature to 260°C for fine chemical and pharmaceutical
reactors.
Standard GB/T 12
| GB/T 12237 | |
|---|---|
| Pressure | PN16 / PN25 |
| Size Range | DN25 – DN200 |
| Body | CF8 / CF8M (+ Full PTFE Lining) |
| Mounting | High Platform — ISO 5211 |
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— Full Specifications
GB/T 12237 PTFE-Lined Ball Valve - High Platform - Parameter Table
| PARAMETER | SPECIFICATION |
|---|---|
| Standard | GB/T 12237 |
| Model | Q41F46-16C/P/RC |
| Pressure Rating | PN16 / PN25 |
| Size Range | DN25 – DN200 |
| Body Material | CF8 (304 SS) / CF8M (316 SS) / WCB |
| Lining Material | PTFE (Polytetrafluoroethylene) / PFA (Optional) |
| Ball Material | SS304 / SS316 (PTFE Encapsulated) A105 |
| Stem Material | SS316 (PTFE Lined Stem Seal), 17-4PH, XM-19 |
| End Connection | Flanged – GB/T 9113 |
| Platform Type | High Platform – ISO 5211 Actuator Mounting Pad |
| Leakage Class | Zero Leakage – GB/T 26480 Class A / API 598 Class VI |
| Temperature Range | -29°C ~ +180°C (PFA option: up to +260°C) |
| Applicable Media | Strong Acids / Alkalis / Oxidizing Agents / Corrosive Chemicals |
Our Production Process
1. Casting
2. Machining
3. Testing
4. Loading
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This Product Spec Sheet
Single-page datasheet for GB/T 12237 PTFE-Lined Ball Valve –
High Platform
- Full parameter table
- Dimensional drawing
- Materials & standards list
- Ordering code guide
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— WHY bAUTU
Why Specify This Valve from Bautu
Full PTFE Encapsulation — pH 0–14 Service
Factory-bonded PTFE liner covers body, ball, seats, and stem seal. Eliminates exotic alloy substitution — CF8M + PTFE lining outperforms Hastelloy C-276 at a fraction of the cost for most corrosive duties.
Optional PFA Lining for High-Temperature Chemica
PFA (Perfluoroalkoxy) upgrade extends service temperature to 260°C with identical chemical resistance — required for fine chemical reactors, pharmaceutical synthesis, and high temperature acid recovery.
— FAQ
Frequently Asked Questions
What is a PTFE lined ball valve, and what makes it different from a standard ball valve?
A PTFE lined ball valve has its entire wetted flow path — including the body interior, ball, and seats — covered with a continuous layer of polytetrafluoroethylene (PTFE). This lining creates a chemically inert barrier between the pipeline media and the metal valve body, providing excellent resistance to acids, alkalis, solvents, and aggressive chemicals that would corrode or degrade a standard carbon steel or stainless steel valve. PTFE lined valves are the standard choice in chemical processing, pharmaceutical manufacturing, electroplating, and water treatment where media purity and corrosion protection are critical.
Which corrosive media is this valve suitable for, and what are its limitations?
Bautu's PTFE lined ball valves handle a wide range of aggressive media including hydrochloric acid (HCl), sulfuric acid (H₂SO₄), nitric acid, sodium hydroxide (NaOH), chlorine solutions, and most organic solvents. The PTFE lining is chemically resistant to virtually all industrial chemicals at temperatures up to 180°C. However, PTFE lined valves are not recommended for molten alkali metals, elemental fluorine, or media containing abrasive solid particles that would mechanically damage the lining surface. For abrasive or ultra-high-temperature service, metal seated or ceramic lined alternatives should be specified. Contact Bautu's engineers with your exact media and temperature for a compatibility confirmation.
What is the standard lead time, and can Bautu supply actuated or custom configurations?
Standard PTFE lined ball valves (PN16/PN25) are delivered in 3–5 weeks from order confirmation. Bautu supports custom configurations including pneumatic or electric actuator packages for automated control, FEP or PFA lining for superior chemical resistance or higher temperature service, and lining thickness customization for high-pressure applications. Third-party inspection (SGS, BV, TÜV) is available on request. Submit your media datasheet and pipe specifications for a tailored quotation within 24 hours.
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