Eliminate heat loss, valve damage, and costly downtime. ASME B16.34 certified extended body gate valves engineered for cryogenic, high-temperature, and insulated piping systems. Direct factory pricing with 48-hour technical support.
✅ ISO 9001:2025 · CE · CRN · 2000+ valves shipped to USA, Saudi Arabia, South Africa & Italy in 2025
If you're specifying gate valves for cryogenic service, steam jackets, or insulated lines, you've likely faced these costly issues:
Ningjin Thriveon Valve Co., Ltd. designs and manufactures extended body gate valves that solve every one of the pain points above. Here's how:
Bonnet extension length from 100mm to 500mm (custom up to 800mm) ensures the stuffing box stays above the ice line. Tested at -196°C for LNG service. No more frozen stems.
Extended neck reduces heat conduction by up to 73% compared to standard bonnets. For 8″ steam lines at 400°C, that's an estimated $4,600/year savings per valve in energy alone.
Full pressure-temperature ratings per ASME Class 150–2500. Materials: A216 WCB, A352 LCB/LCC, A351 CF8/CF8M, A217 WC6/WC9. Traceability from mill to finished valve.
Standard extended body lengths: 200mm, 300mm, 400mm — matching typical pipe insulation thickness. No need for custom valve boxes or extra insulation work. Drop-in replacement.
Our Northern China factory (45,000 sqm, 120+ workers) produces 300+ gate valves weekly. OEM/ODM supported. Typical lead time: 15 working days for standard extended body valves.
ISO 9001:2025, CE/PED, CRN (Alberta & Ontario), ATEX, EAC. We handle documentation for your local jurisdiction. Free technical submittal package with every quote.
All sizes, classes, and materials in one datasheet-ready table.
| Parameter | Standard Range | Custom / Optional |
|---|---|---|
| Size (NPS) | 1/2″ – 24″ | Up to 48″ (on request) |
| Pressure Class (ASME) | 150 – 2500 | API 6A (up to 5000 psi) |
| Bonnet Extension Length | 100mm, 200mm, 300mm, 400mm | Custom up to 800mm |
| Body Materials | A216 WCB, A352 LCB/LCC, A351 CF8/CF8M | A217 WC6/WC9, Duplex 2205, Hastelloy |
| Trim Material | 13Cr, F6a, 304, 316 | Stellite® faced seat, Monel |
| Temperature Range | -196°C to +600°C | Cryogenic (-254°C) / High-temp (+700°C) |
| End Connections | Flanged (RF, RTJ), BW, SW | Threaded, Clamp end |
| Operation | Handwheel, Gearbox | Pneumatic, Electric actuator |
| Standards | ASME B16.34, API 600, API 602 | EN 12516, ISO 15761 |
| Testing | API 598, ISO 5208 Rate A | Helium leak test, cryogenic test |
| Certifications | ISO 9001:2025, CE/PED, CRN | ATEX, EAC, SIL 2, NACE MR0175 |
gate valve body gate valve handle extension expanding gate valve
* All valves are 100% pressure tested before shipment. Material test reports (MTR) included standard.
Extended bonnet prevents ice formation on stem seals. Used in 10+ LNG peak-shaving plants in the US since 2022.
Neck extension clears insulation thickness. Eliminates heat loss and condensation damage in food & pharma plants.
High-temp service up to 600°C with WC6/WC9 materials. API 600 compliant for cat cracker and coker units.
Partial list of clients supplied via distribution partners. NDA-protected project references available on request.
"We replaced 22 standard gate valves with Thriveon extended body valves on our LNG rail loading line. Zero ice formation in two winters. Saved us an estimated $180,000 in avoided downtime."
"Thriveon's extended body gate valves fit perfectly through our 8″ ceramic fiber insulation. The CRN registration for Alberta was handled smoothly. Lead time was 5 weeks — half of what our usual supplier offered."
"We've standardized on Thriveon extended body valves for all steam tracing lines above 300°C. The thermal break design cut our heat loss by 19% based on before/after FLIR surveys. Exceptional value."
"We ordered 14 extended body gate valves for a cold climate pipeline project in Alberta. The CRN registration was already in place, which saved us weeks. Valves arrived on time and passed all pressure tests first try. This is our third order with Thriveon — consistent quality."
"The extended bonnet gate valves from Thriveon are a perfect match for our cryogenic hydrogen filling stations. We've tested them to -253°C with zero issues. The engineering support from their team was exceptional — they answered all our technical questions within hours."
"As a valve distributor in Texas, I've sourced extended body gate valves from three different Chinese suppliers. Thriveon is the only one that consistently delivers ASME B16.34 valves with proper documentation and actual traceable material test reports. No excuses, no delays. My customers are happy."
Liang leads Thriveon's technical solutions team, specializing in severe service valve applications including cryogenic, high-temperature, and high-pressure systems. He holds a B.Eng. in Mechanical Engineering from Hebei University of Technology and has completed advanced valve design training at the Valve Manufacturers Association of America (VMA). Liang has personally overseen extended body gate valve projects for over 40 industrial facilities across North America, Europe, and the Middle East. He is the author of several industry guides on valve selection for insulated and cryogenic piping systems.
Stop overpaying for extended body gate valves that don't deliver. Get factory-direct pricing, full certifications, and delivery in as fast as 2 weeks.
📧 info@thriveonvalve.com | 📞 +86-311-86935302 | 💬 WhatsApp: +86-150-2810-1234
Ningjin Thriveon Valve Co., Ltd. · South of Huanmadian Village Town, Ningjin County, Xingtai, Hebei, China · Contact Page
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Call us on:
+86-311-86935302
+86-311-86935302
Email Us:
info@thriveonvalve.com
South of Huanmadian Village Town, Ningjin County, Xingtai, Hebei Province, China 
