When was TJL INDUSTRY GROUP CO.,LIMITED founded?

TJL INDUSTRY GROUP CO.,LIMITED was founded in 1998.

What products does TJL handle?

TJL handles valves, actuator, pipe and fittings products.

What valve categories are listed on tjlindustry.com?

The site lists gate valve, ball valve, butterfly valve, check valve, globe valve, filter and exhaust valve, PVC valve, solenoid valve, and steam trap categories.

What butterfly valve subtypes are listed on tjlindustry.com?

The site lists wafer type butterfly valve, lug type butterfly valve, flange center line butterfly valve, double offset butterfly valve, triple eccentric butterfly valve, PTFE butterfly valve, and industry butterfly valve.

How can customers contact TJL?

The site directs customers to contact TJL by email at info@tjlindustry.com and through inquiry pages.

China Valve manufacturer Industry News

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Industry News

Designing a Swing Check Valve for High-Pressure Service — A Conversation with TJL's Product Manager [2026-10-15]

TJL's high-pressure swing check valve combines alloy-seated sealing, self-tightening body geometry and broad material options for industrial reverse-flow protection.
Inside-Set Bolt Design in High Pressure Swing Check Valves [2026-10-12]

High pressure check valve bodies have to contain pressure and keep every external joint from becoming a leak path.
How Swing Check Valves Stop Backflow in High Pressure Pipelines [2026-10-12]

A swing check valve prevents reverse flow by letting forward flow push the disc open and letting reverse flow push it closed.
API 598 Shell and Seat Tests in Swing Check Valve Orders [2026-10-12]

API 598 shell and seat tests turn a general pressure-test claim into a verifiable order condition, and the contract wording decides what gets pressurized, what counts as a pass, who witnesses the test, and which records arrive with the shipment.
Navigating Product Offerings of GOST Gate Valves for Industrial Buyers [2026-09-16]

GOST-compliant gate valves cover DN50–DN600 and 16–63 Bar, with material options and GOST 356 testing ensuring reliable, interchangeable performance in industrial systems.
Key Attributes of Gate Valves Meeting GOST Certification Requirements [2026-09-16]

GOST-certified cast iron gate valves use robust alloys and standardized designs, cover DN50–DN600 and 16–63 Bar, and undergo GOST 356 testing to ensure durable, safe industrial flow control.
Overview of GOST Gate Valve Product Lines for Procurement Decisions [2026-09-16]

GOST-compliant gate valves (DN50 to DN600) with 16 to 63 bar ratings and vetted materials provide standardized, reliable options for procurement across varied industrial applications.
Lifecycle Thinking in Industrial Valve Procurement: Why Serviceability Matters for Water Projects [2026-09-08]

Serviceable gate valves can help water projects reduce replacement waste, maintenance disruption, and avoidable lifecycle resource use.
Customizable Gate Valve Options Within GOST Standard Parameters [2026-09-03]

GOST-compliant wholesale gate valves offer DN50–DN600 sizes and 16–63 bar ratings with optimized materials for reliable, interchangeable performance across diverse industrial systems.
Evaluating GOST Gate Valve Specifications for Efficient Pipeline Control [2026-09-03]

The article shows how GOST-compliant gate valves, with DN50–DN600 face-to-face consistency, use suitable materials and rigorous testing to ensure reliable, safe integration in pipeline systems.

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