KR VALVE (TIANJIN) CO., LTD. has spent more than 20 years designing and manufacturing standard and non-standard valves. Our portfolio of 500+ products covers isolation, non-return, filtration and hydraulic control — engineered to DIN, BS and ANSI standards and supplied to contractors, distributors and EPC buyers in 50+ countries.
Wafer, lug, concentric and double eccentric designs with EPDM, PTFE or SS304 surfacing seals.
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Resilient seat, metal seat and knife gate valves to DIN F5 and BS5163 for full-bore isolation.
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Dual disc, swing, lift, silent and ball type non-return valves that protect pumps from backflow.
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GG25, GGG40, WCB and CF8 bodies with SS304 screens to keep debris out of pumps and meters.
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200X pressure reducing and 100X remote float valves for automatic hydraulic regulation.
View SeriesField-proven models from our 20+ years of production — specified by material, seal type and connection standard so your procurement team can match project specs at a glance.
KR VALVE (TIANJIN) CO., LTD. specializes in valve design, manufacturing and comprehensive technical services. Supported by more than 30 production facilities, we deliver both catalogue models and engineered non-standard valves for water supply, drainage, gas, oil and food processing systems.
Our engineers work directly with distributors, contractors and plant owners to confirm pressure class, face-to-face dimensions, flange drilling, body and seal materials before production — reducing site rework and approval delays on international projects.
Isolation, non-return, filtration and control valves with matching accessories.
Casting, machining, assembly and testing capacity for volume orders.
Serving distributors and project buyers across global markets.
Every finished valve is inspected before it leaves our facility.
With a mature valve supply system and production experience, we supply international-standard valves and supporting accessories under our own KR brand, and provide OEM manufacturing for partners worldwide.
A professional team with 24-hour fast response from first enquiry to on-site commissioning.
From raw materials to finished products, every process step is strictly inspected.
Full-chain supply control lets us define production plans and lead times upfront.
Buying butterfly valves, gate valves, check valves and strainers from separate factories means multiple audits, inconsistent quality and split shipments. KR consolidates the complete valve package for your project under one quality system.
Choose our KR brand or specify OEM branding, body materials (cast iron, ductile iron GGG40, WCB, CF8 stainless), seals (EPDM, PTFE, brass, SS304) and operation (lever, gearbox, electric actuator).
A practical shortcut used by our sales engineers: match the valve type to your duty before you request a quotation, so specifications are right the first time.
| Valve Type | Best For | Key Advantage | Typical Standards / Materials |
|---|---|---|---|
| Wafer Butterfly Valve | Water distribution, HVAC, general service | Compact, lightweight, lowest installed cost | Cast / Ductile IronEPDMPTFE |
| Lug Butterfly Valve | End-of-line and maintenance-critical lines | Dead-end service; downstream removal without draining | GGG40Soft Seal |
| Double Eccentric Butterfly Valve | Large-diameter mains, dams, pumping stations | Reduced seat wear, low operating torque | SS304 SurfacingFlanged |
| Resilient Seat Gate Valve | Municipal water and fire networks | Full bore, bubble-tight shut-off, low head loss | DIN F5BS5163EPDM |
| Metal Seat Gate Valve | Abrasive or higher-temperature media | Durable brass sealing, actuator-ready | GGG40Brass Seat |
| Wafer Dual Disc Check Valve | Pump discharge, space-limited plant rooms | Fast spring closure limits water hammer | BS5153CF8 Disc |
| Ball Type Check Valve | Sewage, wastewater and slurry pumping | Self-cleaning ball, low clogging risk | DINEPDM Ball |
| Y Type Strainer | Protection of pumps, meters and control valves | Removable screen, compact inline filtration | GG25GGG40WCBCF8 / ANSI |
| 200X Pressure Reducing Valve | Zone pressure management, high-rise supply | Stable downstream pressure, no external power | PN16Ductile Iron |
KR valves are installed in water treatment and dam construction, municipal water pipelines, food processing plants, gas networks and oil transport systems.
KR valves play a key role in municipal water supply, drainage and sewage treatment projects, where reliable shut-off and corrosion resistance are essential.
KR also produces sanitary standard valves, providing complete flow control solutions for food processing plants.
Leak-tight, pressure-resistant and durable valves that keep gas systems stable and ensure safe, accurate flow control for transmission, distribution and storage.
From crude oil extraction to transportation, KR supplies the valves required for safe and efficient oil handling.
Planning a pipeline, plant or distribution program? Get the full KR product catalog.
Request a CatalogSelection guides and maintenance advice written by our engineering team for buyers and pipeline designers.
Both prevent backflow, but they differ greatly in structure, pressure loss, installation orientation and anti-water-hammer performance. Compare key parameters and get practical selection advice for steam, water, oil and gas piping.
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Lug and wafer are the two most popular butterfly valve connection types. Learn how mounting, dead-end capability, weight and cost affect which design is right for your industrial piping project.
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Correct installation and routine maintenance prevent leakage, jamming and premature failure of flanged ball valves in water, oil, gas and chemical pipelines — cutting unplanned downtime.
Read MoreStraight answers to the questions procurement managers and engineers ask us most often.
Get the complete KR catalog with dimensions, materials and standards — and a direct line to our engineering team for project support.
