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{"title":"Custom Side Cut Tungsten Carbide Sealing Seat with Polished Surface and High","imgUrl":"https:\/\/img.chinax.com\/nimg\/78\/e5\/c254386374d04bf2795fdb1f49af-200x200-1\/custom_side_cut_tungsten_carbide_sealing_seat_with_polished_surface_and_high_wear_resistance.jpg","attrs":{"Place of Origin":"China","Brand Name":"Sanxin","Certification":"ISO","Minimum Order Quantity":"1 piece"}}
{"title":"Abrasion Resistant Corrosion Resistant High Density Tungsten Carbide Bearing","imgUrl":"https:\/\/img.chinax.com\/nimg\/33\/c1\/89c65e97e2085dc90a3153909543-200x200-1\/abrasion_resistant_corrosion_resistant_high_density_tungsten_carbide_bearing_rings_for_oilfield_machinery.jpg","attrs":{"Place of Origin":"China","Brand Name":"Sanxin","Certification":"ISO","Minimum Order Quantity":"1 piece"}}
{"title":"Tungsten Steel Production Custom Made High Flatness Mechanical Carbide Seal","imgUrl":"https:\/\/img.chinax.com\/nimg\/5c\/f4\/1b5033521166ba12f1f52f329c82-200x200-1\/tungsten_steel_production_custom_made_high_flatness_mechanical_carbide_seal_rings.jpg","attrs":{"Place of Origin":"China","Brand Name":"Sanxin","Certification":"ISO","Minimum Order Quantity":"1 piece"}}
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{"title":"Wear-Resistant Corrosion-Resistant Tungsten Carbide Nozzle Tip with Precision \u00b10","imgUrl":"https:\/\/img.chinax.com\/nimg\/22\/8a\/43f5f0fbada959f22117fbe2abc6-200x200-1\/wear_resistant_corrosion_resistant_tungsten_carbide_nozzle_tip_with_precision_c2_b10_002mm_for_inkjet_equipment.jpg","attrs":{"Place of Origin":"China","Brand Name":"Sanxin","Certification":"ISO","Minimum Order Quantity":"1 piece"}}
{"title":"High Pressure 350 MPa Cylinder with Valve and Plunger Made of 100% Virgin","imgUrl":"https:\/\/img.chinax.com\/nimg\/c2\/43\/78b179bfc80cb776771c058ac5d5-200x200-1\/high_pressure_350_mpa_cylinder_with_valve_and_plunger_made_of_100_25_virgin_tungsten_carbide_for_excellent_corrosion_resistance.jpg","attrs":{"Place of Origin":"China","Brand Name":"Sanxin","Certification":"ISO","Minimum Order Quantity":"1 piece"}}
This cemented carbide valve seat and valve stem matching assembly is manufactured from primary ultrafine tungsten carbide powder using a high-pressure sintering process. Specifically engineered to withstand extreme working conditions involving erosion, corrosion, high pressure, and high temperature, this assembly is ideal for demanding industrial applications.
Core Advantages
Extreme Hardness and Wear Resistance
Material Properties: Made from YG-class sub-micron tungsten carbide-based cemented carbide, achieving hardness of HRA 88-93 (approximately equivalent to > HRC 76)
Erosion Resistance: Resistance to particle erosion is dozens of times higher than traditional stainless steel (e.g., 316L), effectively resisting cutting wear from solid particles in high-velocity fluids
Excellent Corrosion and High-Temperature Resistance
Chemical Stability: Tungsten carbide offers excellent resistance to chemical corrosion. Customizable binder phase (e.g., Cobalt, Nickel) provides tailored resistance to acidic (e.g., H2S/CO2) or alkaline media
High-Temperature Application: Maintains high hot hardness in environments up to 600°C to 900°C, resisting softening and deformation to ensure sealing performance at elevated temperatures
Precision Fit and Zero-Leakage Sealing
Mirror Lapping Process: Valve stem and seat manufactured using matched grinding technology with high-precision internal/external cylindrical grinding and lapping/polishing
Sealing Class: Fit clearance controlled to micron level, enabling bubble-tight sealing (meeting ANSI/FCI 70-2 Class VI or higher standards) and preventing internal leakage
Impact Resistance and Structural Integrity
Tough Matrix: Optimized cobalt content and sintering process maintain high hardness while providing adequate toughness and strong impact resistance
Durability: Prevents breakage or chipping during rapid valve cycling or pressure fluctuations
Technical Specifications
Material
Tungsten-Cobalt cemented carbide (YG6X, YG8, YG15, etc.) / Tungsten-Cobalt-Nickel (customizable non-magnetic or corrosion-resistant formulas based on media)
Petrochemical: Valves in catalytic cracking units and hydrocracking units
Coal Chemical: Wear-resistant control valves in gasification units and black water/grey water treatment systems
Thermal Power: Slurry shut-off valves and slag discharge valves in Flue Gas Desulfurization (FGD) systems
Mining & Metallurgy: Wear-resistant directional valves in ore slurry pipelines
General Industry: High-pressure cleaning equipment, steam traps, etc.
Customization and Services
We offer comprehensive custom services based on customer-provided drawings, samples, or operating parameters (temperature, pressure, medium composition):
Material Customization: Optimize cobalt content or add rare metal carbides to enhance specific properties
Dimension Machining: Accept non-standard dimensions for turning, milling, drilling, and threading
Assembly Support: Provide brazing, shrink-fitting, or mechanical fastening assembly services with valve body metal components
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Importer,Exporter,Seller,Other
Year Established:
2003
Total Annual:
8000000-10000000
Employee Number:
150~180
Ecer Certification：
Verified Supplier
Zhuzhou Sanxin Cemented Carbide Manufacturing Co.,Ltd is located in Zhuzhou, Hunan Province, which is known as the “Hometown of Cemented Carbide”. It is a national high-tech enterprise that has passed ISO9001:2015 international quality certification system, specializing in manufacturing,... Zhuzhou Sanxin Cemented Carbide Manufacturing Co.,Ltd is located in Zhuzhou, Hunan Province, which is known as the “Hometown of Cemented Carbide”. It is a national high-tech enterprise that has passed ISO9001:2015 international quality certification system, specializing in manufacturing,...
