API 6D / API 608 Soft-Seated Ball Valve — Low Platform
WIDER SIZE RANGE · ISO 5211 STEM TOP · WENZHOU FACTORY
Medium-to-large diameter pipeline ball valve covering NPS
1/2″–8″. Manufactured to API 6D, API 608, and ASME B16.34
with PTFE/RPTFE soft seat for zero-leakage shutoff per API
598 Class VI. Standard ISO 5211 stem top compatible with all
major actuator brands via bracket and coupler
Sales team responds within 24 hours
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— Full Specifications
API 6D / API 608 Soft-Seated Ball Valve - Low Platform - Parameter Table
| PARAMETER | SPECIFICATION |
|---|---|
| Standard | API 6D / API 608 / ASME B16.34 |
| Model | Q41F-150LB-YT |
| Size Range | NPS ½" – 8" (DN15 – DN200) |
| Body Material | WCB (ASTM A216) · CF8 · CF8M (316SS) |
| Ball Material | SS304 / SS316 — Mirror polished Ra ≤ 0.4μm |
| Seat Material | PTFE / RPTFE — Soft seat, zero leakage |
| Platform Type | Low Platform — ISO 5211 stem top with bracket & coupler |
| Fire Safe | API 607 / API 6FA compliant |
| Leakage Class | API 598 Class VI — Zero leakage |
| Temperature | -29°C ~ +180°C |
Our Production Process
1. Casting
2. Machining
3. Testing
4. Loading
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· Product documentation
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This Product Spec Sheet
Single-page datasheet for API 6D / API 608 Soft-Seated Ball Valve – Low Platform
- Full parameter table
- Dimensional drawing
- Materials & standards list
- Ordering code guide
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— WHY bAUTU
Why Specify This Valve from Bautu
ISO 5211 Universal Mount - Any Actuator Brand
Standard bracket-and-coupler interface accepts Rotork, Bettis, Bray, EL-O-Matic, AUMA. Field-replaceable mounting hardware reduces inventory complexity for EPC retrofit projects.
Widest Size Range - Up to NPS 8"
Larger size envelope than High Platform version. NPS ½"–8" covers most midstream pipeline isolation duties in a single product family.
— FAQ
Frequently Asked Questions
What does “soft seated” mean, and what are its advantages?
Soft seated means the valve seat is made from PTFE or RPTFE polymer material, rather than metal. This design achieves ISO 5208 Rate A bubble-tight shutoff (zero measurable leakage) and operates continuously from -40°C to +180°C, requires lower operating torque, and delivers longer service life. It is ideal for clean media including water, natural gas, oil, and process chemicals that do not contain abrasive particles.
What does “Low Platform” mean on this valve?
“Low Platform” refers to a compact actuator mounting pad conforming to ISO 5211. It allows direct mounting of pneumatic or electric actuators — including Rotork, Bettis, AUMA and Bray — without a separate bracket. This reduces overall installation height, lowers pipeline stress, and cuts total installed cost.
What is the lead time, and can you accommodate custom specifications?
Standard sizes (NPS ½” to 8″, Class 150 / 300) are available in 4–6 weeks. Custom alloys, actuated packages, or witness inspection orders typically require 8–12 weeks. OEM private labeling and ITP documentation are available for EPC projects. Contact our team for a formal quotation.
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Tell us size, quantity, material and required standard — sales team responds within 24 hours.