| Plug Valve Seats | ||
| Size Range | 1/2" to 56" (Custom sizes available) | |
| Pressure Rating | PN10-PN420 (Class150-2500) | |
| Body Material | A105, A350 LF2, A182 F304, A182 F316, A182 F321, A182 F51, A182 F53, A182 F55, A182 F60, A182 F44, A564 630 (17-4PH) INCONEL625, INCONEL718, INCONEL825, Monel 400, Monel 500 etc |
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| Core Process/Coating | ENP,HCR,STL6, STL12, STL20,Cr3C2, WC-Co, WC-Cr3C2-Ni, TiC-NiMo, SiC, CrC,ZrO2, Al2O3, Cr2O3, ZnO, TiO, Al2O3-TiO2,STL1, STL6, STL12,Ni60, Ni55, Ni45 etc. | |
| Operating Temperature Range | ≤1200°C | |
| Parameter Category | Core Technical Parameters | Standards for Determining Advanced Technological Level |
| Machining Seat accuracy | ≤ 0.025 mm | ≤ 0.005 mm (Ultra-High Precision) |
| Processing Seat Roundness | ≤ 0.025 mm | ≤ 0.011 mm (Micron-Level ) |
| Seats concentricity | ≤ 0.025 mm | ≤ 0.005 mm (Ultra-High Precision) |
| Other supplements | ≤ 0.4 μm | ≤ 0.1 μm (Mirror-Level) |
| Parameter Category | Core Technical Parameters | Criteria for High-End Technical Level |
| Coating Thickness Control | Thickness Uniformity | Thickness deviation at any spherical position ≤±8% (stricter than the general ±10% standard) |
| Thickness Tolerance Range | 100 - 300 μm (common range for wear-resistant layers); special ranges can be noted. No missed spraying for ultra-thin coatings (<10μm) | |
| Coating Adhesion Performance | Surface Hardness | HV 1300+ |
| Bond StrengthBond Strength | ≥80 MPa | |
| Interface PorosityInterface Porosity | <0.5% | |
| Coating Surface Quality | Surface Roughness (Ra) | ≤0.2 µm |
| Spraying Accuracy (Positioning & Coverage) | Spraying Positioning Accuracy | ±0.1mm |
Core Product: Plug Valve Seats Engineered for Severe Service
The performance core of a plug valve lies in the precise and durable sealing interface between the plug and the seat. Our product range covers needs from standard to extreme service conditions.
Complete Sealing and Long-Term Adaptability: We offer plug valve seats in a variety of elastomers (e.g., FKM, FFKM) and high-performance polymers (e.g., reinforced PTFE, UHMWPE). These materials not only provide excellent initial sealing but also utilize their elasticity to automatically compensate for minor gaps caused by wear or thermal changes. This ensures reliable, bubble-tight shut-off is maintained throughout the service life while effectively reducing operating torque.
Confronting Extreme Wear and Corrosion: For media containing hard particles, powders, or causing severe erosion, we have developed metal seat solutions and surface-hardened/coated options (e.g., tungsten carbide spray, ceramic composite). These plug valve seats offer exceptional wear and corrosion resistance, significantly extending maintenance intervals for valves in harsh environments such as mining, coal chemical processing, and flue gas treatment.
Full Lifecycle Support: From Streamlined Procurement to Professional Maintenance
We strive to be a long-term partner to our customers, offering comprehensive support that goes beyond the product itself.
Source Quality Seats with Ease (Buy Valve Seat)
Whether you need replacement seats for a specific brand or model of plug valve, or require custom-engineered seats for a new project, we provide efficient and accurate selection and quoting services to simplify your process to buy valve seat.
Ready-to-Use Valve Seat Kit
To ensure maintenance efficiency, we offer complete valve seat kits containing the seat(s), necessary seals, lubricant, and installation instructions. Designed for quick, standardized field repair, these kits help users drastically reduce downtime and swiftly resume operations.
Expert Valve Seat Replacement Support
Our technical team can provide detailed valve seat replacement procedure guidance, specialized tool recommendations, or on-site technical service support for complex situations. This ensures every maintenance action is precise and effective, restoring valve performance to like-new condition.
Why Choose TongBall Plug Valve Seats?
Precision Fit Ensures Sealing
Precision machining of the plug taper angle and sealing face profile guarantees perfect line or surface contact between our seat and the plug, eliminating internal leakage at the source.
Material Expertise Meets Challenges
We are proficient with a wide range of materials, from ultra-elastic rubbers to ultra-hard alloys, enabling us to match the optimal seat material to specific media (e.g., strong acids, solvents, dry powders) and conditions (e.g., high temperature, high pressure, abrasion).
Reduces Total Cost of Ownership
Longer service life, reduced maintenance frequency, and streamlined replacement services collectively help lower the total lifecycle cost of your valves.
Validated by Global Industry Leaders
Our seat products have been successfully integrated into valves serving top-tier international engineering firms and end-users, with their reliability proven in numerous demanding applications worldwide.
In pipelines conveying the most challenging media, every reliable closure of a plug valve is critical. TongBall provides not just a sealing component, but a solid commitment to your process continuity, safety, and operational economy.
Whether you are searching for plug valve seats that resist specific chemicals, stocking standard valve seat kits for routine maintenance, or seeking a professional solution for critical valve seat replacement, TongBall's expertise and proven products stand as your reliable support.
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