LTK Valve | Industrial Valves & Precision Castings Manufacturer

About LTK Valve

Qingdao Zhonghe Meilian Precision Machinery Co., Ltd. is a professional manufacturer specializing in industrial valves and precision metal castings. With a complete production line covering pattern making, foundry, machining, and assembly, we are committed to delivering high-quality products to customers worldwide.

Our mission is to continuously improve our technical capabilities and contribute to society through reliable engineering solutions. We serve industries including oil & gas, water treatment, power generation, and chemical processing.

5Kg–20T

Unit Weight Range

30+

Global Partners

Advanced Technological Process

From raw material to final inspection, every step is optimized for precision, consistency, and quality assurance.

Moulding

Resin sand and green sand molding using precise patterns for consistent casting geometry.

Smelting & Pouring

Intermediate frequency furnace melting with strict control over composition and temperature.

Machining

CNC and conventional machining to meet exact dimensional tolerances per engineering drawings.

Painting

Spray or powder coating applied per customer specifications with hydrostatic testing.

Inspection

Comprehensive quality checks using advanced inspection equipment before shipment.

Delivery

Secure packaging and global logistics via land, air, or ocean transportation.

Our Product Range

We manufacture a wide range of industrial valves and precision castings for diverse applications and industries.

Ball Valve

Full port and standard port designs in stainless steel, carbon steel, and alloy materials. Suitable for on/off control in high-pressure systems.

Size: 1/2" – 48"
Pressure: Class 150–2500
Materials: SS304, SS316, WCB

Butterfly Valve

Concentric, double offset, and triple offset designs for water, gas, and chemical applications with tight shut-off performance.

Size: 2" – 72"
Pressure: PN6–PN40
Ends: Flanged, Lug, Wafer

Knife Gate Valve

Designed for slurry, viscous, and abrasive media. Features a sharp gate for positive closure and minimal clogging.

Size: 2" – 48"
Pressure: Class 150
Body: Cast Iron, Ductile Iron

Plug Valve

Lubricated and non-lubricated models for reliable isolation in oil & gas, refining, and petrochemical environments.

Size: 1/2" – 24"
Pressure: Class 150–900
Design: 2-way, 3-way

Check Valve

Swing and lift check valves to prevent backflow in pipelines. Available in wafer, lug, and flanged types.

Size: 1/2" – 48"
Pressure: Class 150–600
Materials: Carbon Steel, Stainless Steel

Strainer

Y-type and basket strainers for protecting pumps, valves, and instrumentation from debris in fluid systems.

Size: 1/2" – 24"
Pressure: Class 150–300
Mesh: 20–100

Valve Castings

Custom OEM castings for valve bodies, bonnets, and components in grey iron, ductile iron, and stainless steel.

Weight: 5kg – 20,000kg
Standards: ASTM, ISO, GB
Finishing: Machined or Raw

Pump Castings

Precision pump housings, impellers, and casings for centrifugal and positive displacement pumps.

Materials: Cast Iron, Bronze, SS316
Weight Range: 10–5,000kg
Applications: Water, Chemical, Oil