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Check standards and interfaces
Compare flange dimensions, face-to-face length, material and the applicable pressure–temperature rating before replacing a valve.
Cross-standard replacement guide →Industrial valves, matched to your application
Explore ball, butterfly, gate, globe, check and control valves. Share your medium, operating conditions and connection requirements to discuss the right series for your project.
Find a valve by type
Compare valve families, then check the individual product's structure, materials and connection details. Ratings and suitability depend on the selected configuration and operating conditions.
Trekre & Tekron
Jiangsu Tekron Flow Control Valve Co., Ltd. operates two valve brands: Trekre for international markets and Tekron for the domestic Chinese market. Valve selection depends on the fluid, temperature, pressure and connections, not on the brand name. We provide selection, manufacturing and technical support for ball, butterfly, gate, globe, check and control valves.
Technical articles
What is a two-way pressure butterfly valve
Overview of a top-entry metal-seated butterfly valve for bidirectional shut-off, including access to internal parts and maintenance considerations.
Comparison Table of Valve Nominal Diameter and Pipeline Size
Compare valve nominal diameters, inch sizes and pipe outside diameters in reference tables, then check the applicable piping standard and connection dimensions.
Differences in valve cores for regulating valve flow characteristics
Compare control-valve flow characteristics and how the valve trim, pressure-drop distribution and piping system affect the installed flow response.
The relationship between various types of ball valves and PTFE polytetrafluoroethylene
How PTFE is used in ball-valve seats, seals and gaskets. Review friction, chemical compatibility and service conditions when choosing the sealing material.
What does RF flange valve mean?
Learn what RF (raised face) means on a valve flange and which connection, gasket and sealing-face details to check before selecting a matching pipe flange.
Analysis of forged and cast valves
Compare forging and casting as valve manufacturing processes, including body formation and material considerations for product selection.
Plan your valve purchase or replacement
Start with the interface, duty and acceptance requirements—not just a nominal size or a model code.
Avoid butterfly valve replacement errors
Check disc clearance, mating pipework, seat design and actuator compatibility against the actual installation.
Butterfly replacement checklist →Describe leakage before selecting a fix
Distinguish seat leakage from external leakage and record the conditions before discussing repair, testing or replacement.
Valve leakage troubleshooting →