Eliminate post-earthquake gas leak risks in commercial & industrial buildings.
Meet California Title 24, NFPA 54 & IBC codes without the premium price tag.
✓ ISO 9001:2015 Certified ✓ UL 144 Compliant Design ✓ 15+ Years Engineering Experience
For facility managers and operations directors in seismic zones, a standard gas line without automatic shutoff capabilities is a critical vulnerability.
The result? Either overpaying for domestic valves or gambling on unverified imports. There is a better way.
At Ningjin Thriveon Valve Co., Ltd., we engineer automatic seismic gas shut off valves that bridge the gap between uncompromising safety and cost-effective procurement. Our valves are designed by a team of engineers with over a decade of experience in global flow control, serving facilities in the USA, Saudi Arabia, Italy, and South Africa.
| Model | Size Range | Connection | Pressure Rating | Seismic Threshold | Certifications | Body Material |
|---|---|---|---|---|---|---|
| TSV-100 | ½" – 2" | FNPT / Flanged (ANSI 150) | ANSI 150 / 300 | 5.4 MMI | ISO 9001, CE, UL 144 (Design) | Ductile Iron / WCB |
| TSV-300 | 2½" – 6" | Flanged (ANSI 150/300) / Grooved | ANSI 150 / 300 | 5.0 MMI | ISO 9001, CE, UL 144 (Design) | Ductile Iron / WCB / SS304 |
| TSV-HP | 1" – 4" | Flanged (ANSI 600) | ANSI 600 | 5.4 MMI | ISO 9001, CE, API 6D | Carbon Steel / Stainless Steel |
All valves comply with ASME BPVC Section VIII and are suitable for natural gas, propane, and other fuel gases.
“Thriveon supplied 240 seismic gas shut off valves for our new mixed-use development in Los Angeles. Their team provided the necessary submittals for Title 24 compliance, and we saved roughly 37% compared to our previous domestic supplier. The quality was excellent—zero defects on delivery.”
— John D. Cruz Project Manager, West Coast Commercial Builders“I was initially hesitant about sourcing safety-critical valves from China. But Thriveon's engineering support changed my mind. They sent detailed CAD drawings, mill test reports, and even a pre-shipment video of the testing. Delivery was 5 weeks ahead of schedule.”
— Sarah K. Mitchell Supply Chain Director, GasSafe Utilities Inc.“The TSV-300 model was exactly what we needed for a school retrofit project. Easy to install, robust latching mechanism, and the price point allowed us to bid competitively. We have since standardized on Thriveon for all our seismic valve needs.”
— Michael T. O'Brian Plumbing Contractor, O'Brian Mechanical“We run a large industrial campus in Texas with high-pressure gas lines. Thriveon’s TSV-HP series gave us the ANSI 600 rating we needed. The OEM customization (special flange facing) was handled perfectly. Technical support was prompt and clear. Highly recommended for industrial buyers.”
— David R. Chen Operations Manager, PetroChem LogisticsAnswers to common procurement and technical questions from B2B buyers.
A seismic gas shut off valve is a safety device that automatically stops the flow of natural gas when it detects earthquake-induced ground motion above a preset threshold (usually 5.4 MMI). It uses a mechanical pendulum or spring-latching mechanism—no electricity required. Once tripped, it must be manually reset, ensuring no gas flows until the system is inspected.
Yes. Our TSV series is engineered to comply with the intent of California Code of Regulations Title 24, Part 12, and NFPA 54 (National Fuel Gas Code). We provide compliance documentation, engineering submittals, and test reports to assist with local AHJ (Authority Having Jurisdiction) approval. For UL 144 listed requirements, we can manufacture to specification.
Standard lead time is 4–6 weeks from order confirmation. We offer FOB Tianjin, CIF USA Main Ports, or DDP (customs cleared) depending on your preference. Express production (2–3 weeks) is available for large or urgent orders. Shipping to Los Angeles or Houston typically takes 20–25 days via ocean freight.
Absolutely. We provide free samples (buyer pays shipping) for qualified engineering firms and distributors. Sample lead time is 7–10 days. We also offer low MOQs for initial pilot projects so you can validate fit, form, and function before scaling up.
An Excess Flow Valve (EFV) closes when gas flow exceeds a predetermined rate (e.g., a broken line). A Seismic Gas Shut Off Valve responds specifically to ground acceleration. For comprehensive safety, codes often require both or a combination device. Thriveon manufactures both types; we can advise based on your specific gas load and seismic zone mapping.
We offer a standard 18-month warranty on all valves covering manufacturing defects. Our technical team is available via email, WhatsApp, and Zoom for installation support. If an issue arises, we troubleshoot via video call and ship replacement parts immediately. We stand by our quality—our retention rate among US buyers is over 92%.
We accept T/T (wire transfer), L/C (irrevocable), and for smaller amounts, Western Union or PayPal. Payment terms are typically 30% deposit / 70% before shipment, but negotiable depending on order volume and credit history.
seismic gas shutoff valve seismic shut off valve gas natural gas seismic shut off valve
Liang Wei – Senior International Valve Standards Analyst at Ningjin Thriveon Valve Co., Ltd.
Upgrade your infrastructure with certified seismic gas shut off valves. We help you meet compliance, reduce supply chain costs, and secure your facilities.
📄 Get Your Free Compliance Package: Includes seismic valve spec sheet, installation manual, and code compliance overview.
🔒 Your engineering specifications are kept confidential. ISO-9001 certified quality management system.
📍 South of Huanmadian Village Town, Ningjin County, Xingtai, Hebei Province, China
Related Products
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 
