| Seat 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 Series: Comprehensive Solutions for Floating & Trunnion Valves
We offer a full range of high-performance ball valve seats, precisely tailored to different valve designs and operating conditions to ensure consistent, reliable sealing.
Floating Ball Valve Seat
Optimized for floating ball designs, our seats feature excellent elastic sealing and self-adjusting compensation capabilities. They maintain a tight seal against the ball even under system pressure fluctuations, which is key to achieving zero leakage. Ideal for low to medium-high pressure services, they offer responsive performance and easy maintenance.
Trunnion Ball Valve Seat
Built for the high-pressure, large-bore demands of trunnion ball valves, these seats incorporate a reinforced structure for exceptional pressure-bearing capacity. They ensure lasting stability of the sealing surface while effectively reducing operating torque under high or fluctuating pressure conditions, making them the ideal choice for sectors like energy and long-distance pipelines.
Beyond Components: Streamlined Procurement & Lifelong Support
We understand that superior products must be paired with easy access and dependable support. That's why we are committed to being your total sealing solution partner.
Source Quality Seats with Ease (Buy Valve Seat)
We provide both standard and custom-engineered valve seats in a variety of materials-including reinforced PTFE, PEEK, metal seals, and specialty alloys-to meet diverse temperature, pressure, and media requirements. Our efficient and transparent procurement process helps you get the right part, fast.
Ready-to-Use Valve Seat Kit
To simplify maintenance, we offer complete valve seat kits containing the seat, related seals, and components. All parts within a kit are precision-matched and tested to restore system performance to like-new condition, significantly reducing maintenance downtime.
Expert Valve Seat Replacement Support
When valve maintenance is required, reliable valve seat replacement is crucial. We provide detailed technical guidance, tool recommendations, or on-site service support to ensure accurate and efficient replacement, restoring your valve to its optimal working condition and extending its overall service life.
Why Choose TongBall Valve Seats?
Precision Defines the Seal
Our industry-leading ball machining accuracy (sphericity and surface finish) allows our seats to achieve near-perfect spherical contact, ensuring absolute sealing from the source.
Advanced Processes Enhance Performance
Top-tier coating and surface treatment technologies (e.g., ceramic coating, hardening treatments) give our seats superior wear, corrosion, and galling resistance, empowering them to handle extreme service conditions.
Mastery of Material Science
From high-performance polymers to special metals, we expertly process a wide range of materials to recommend and manufacture the seat best suited to your specific media, temperature, and pressure.
Proven by Global Leaders
Our products are trusted and utilized by top international valve brands such as Emerson, Flowserve, and Kitz, with their reliability demonstrated in numerous critical projects worldwide.
When every cycle impacts system safety, and long-term sealing directly affects operational cost, choosing the right seat partner is paramount. TongBall Valve Co., Ltd. delivers not just a precision component, but a commitment to reliability, efficiency, and long-term value.
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