| Control 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: Control Valve Seats, Designed for Precision
Control valve performance is highly dependent on the response characteristics and durability of the seat. We offer a variety of material and structural designs to meet a full spectrum of needs, from general regulation to extreme service.
Precision Fit and Optimized Design: We provide customized control valve seats for rotary (e.g., eccentric rotary) and linear (e.g., single/double-port) valves. By optimizing the sealing face geometry, material hardness, and elastic modulus, we ensure shut-off class compliance (e.g., ANSI Class IV, VI) while minimizing hysteresis, improving rangeability, and reducing the risk of cavitation and noise.
Material Science for Demanding Service: Our solutions encompass a wide range of materials, from reinforced polymers (e.g., PTFE, PEEK) to specialty alloys (e.g., Stellite, Hastelloy) and ceramic coatings. This enables our seats to withstand high temperatures, high pressures, corrosive media, and slurries containing particulates, ensuring long-term stable operation in sectors such as chemicals, power generation, oil & gas, and pharmaceuticals.
From Selection to Support: Comprehensive Service
We are committed to moving beyond simple part supply by offering convenient, lifecycle-spanning support to our customers.
Source Quality Seats with Ease (Buy Valve Seat)
Whether you require standard model replacements or custom-engineered control valve seats for specific valve models or operating conditions, we provide efficient, accurate quoting and delivery to simplify your procurement.
Ready-to-Use Valve Seat Kit
To minimize maintenance downtime, we offer complete valve seat kits containing the seat, associated gaskets, fasteners, and other necessary parts. All components are compatibility-verified to restore optimal control valve performance post-replacement.
Expert Valve Seat Replacement Support
Our technical support team can provide detailed valve seat replacement guidelines, specialized tool recommendations, or on-site service plans. This assists you in performing maintenance efficiently and safely, maximizing control valve service life and minimizing total lifecycle cost.
Why Choose TongBall Control Valve Seats?
Precision-Crafted Flow Characteristics
Our deep understanding and precise machining capabilities for seat flow characteristics (e.g., equal percentage, linear) ensure valves achieve their intended control curve, enhancing overall loop performance.
Durability Ensures Operational Continuity
Superior resistance to wear, erosion, and fatigue allows our seats to maintain long-term sealing integrity under frequent actuation and in harsh media, reducing unplanned outages.
Proven Across Industries
Our products serve numerous demanding process industries worldwide, with their reliability and consistency validated by partners including Emerson and Flowserve.
Collaborative Engineering Capability
We actively collaborate with valve manufacturers and end-users to develop optimal seat solutions for unique application challenges.
In process industries, the value of control precision and reliability is immeasurable. Every smooth adjustment stems from the flawless partnership between the trim and the seat. TongBall Valve Co., Ltd. provides not just a component, but a solid commitment to the stability and efficiency of your processes.
Whether you are selecting high-performance control valve seats for a new project, replenishing standard valve seat kits for maintenance stock, or seeking a technical solution for critical valve seat replacement, TongBall's expert team and mature product line stand ready to help you master every precise flow.
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