Premium Materials: MTC certificates + PMI testing ensure material authenticity and compliance.
Thick-Wall Body: Meets chemical industry standards (HG/T), resists corrosion/stress.
Clog-Resistant Structure: Smooth flow path minimizes residue.
Flexible Integration: Customizable flanges & ISO 5211 actuator interfaces for easy retrofitting/upgrades.
Design and Manufacture: GB/T 12238-1989; GOST 12815-1980; GOST 5263-1975
Leakage Class: API 598 (Bi-directional Zero Leakage)
Side Flange Standards: ANSI 125LB/ 150LB; ASME; AS-D/E; BS; DIN; EN PN6/ PN10/ PN16; GB; GOST; HG/T; JIS 5K/ 10K
Top Flange (Actuator Mounting): ISO 5211; GB 90°
Face-to-Face Dimension: ISO 5752; MSS SP-68; ASME B16.10; EN 558-1; API 609
Testing Standards: API 598; EN 12266-1; ISO 5208; BS 6755-1
Certifications: ISO 9001; CE; BV; API 609; API 598; EAC; SIL3；
Technical description
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Q&A
Specification of the Valve |
|
|---|---|
|
Type of Connection |
Wafer |
|
Actuation |
Lever |
|
Size |
1 1/2in ~ 8in (DN40~DN200) |
|
Pressure |
10bar~20bar (1.0mpa~2.0mpa) |
|
Testing Pressure |
256psi |
|
Medium |
Water/Oil/Air |
|
Medium Temperature |
-25~180℃ |
Material of the Valve |
|
|---|---|
|
Body |
WCB/WCC/ LCB/ LCC/ LC1 |
|
Disc |
DI/ CF8/ CF8M/ CF3/ CF3M/ 2205/ 2507/ 1.4529/ HC276/ C95400/ C95800 |
|
Stem |
45#/ SS410/ SS416/ SS420/ SS304/ SS316/ SS316L/ 17-4/ 2205/ 2507/ 1.4529/ K500/ CF8/ CF8M/ HC276 |
|
Soft Seat |
EPDM/ NBR/ SI/ FKM/ FPM/ VITON/ PTFE/ HYPALON/ UHMWPE |
| Coating | Epoxy Resin 200um ~ 250um |
We leverage our expertise in carbon steel casting and precision machining to produce robust, reliable valves. From raw WCB material sourcing to final epoxy coating, we ensure every valve meets stringent industrial standards for performance and longevity.
We utilize high-grade A216 WCB carbon steel, subjected to rigorous quality control and heat treatment processes. This ensures superior mechanical strength and structural integrity, essential for high-pressure and industrial utility applications.
Our advanced CNC centers ensure critical dimensions of the valve body, disc, and stem are machined to tight tolerances. This precision guarantees a perfect seat-to-disc seal, minimizes operating torque, and extends the valve's service life.
Every carbon steel valve undergoes a multi-stage surface preparation process followed by the application of a high-performance fusion-bonded epoxy coating, providing excellent protection against atmospheric corrosion and mechanical impact.
Our carbon steel wafer butterfly valves are engineered for durability and cost-effectiveness, making them the preferred choice for a wide range of general industrial and commercial applications.
Ideal for heating, ventilation, and air conditioning systems, our valves provide reliable flow control for chilled water, hot water, and condenser water lines. The compact design of the wafer butterfly valve saves crucial space in mechanical rooms.
In municipal and industrial water treatment plants, these valves are used for isolation and throttling duties in aeration systems, backwash lines, and effluent discharge. As a leading wafer butterfly valve manufacturer, we ensure our products withstand the rigors of continuous operation.
Used extensively in cooling water circuits, ash handling systems, and other utility services within power plants. The robust construction of the wafer type butterfly valve ensures long-term performance under demanding thermal and pressure cycles.
Carbon steel valves are a cost-effective solution for handling process water, white water, and low-corrosive chemical lines. The streamlined disc of our china wafer butterfly valve minimizes flow obstruction, making it suitable for pulp stock at low consistencies.
In dewatering, tailings transport, and process water lines, our valves offer reliable shut-off. A properly selected seat, like in a 4 wafer butterfly valve, can handle mildly abrasive slurries, providing a durable solution for mining support systems.
While not for hydrocarbon process streams, these valves are perfect for utility applications like firewater systems, cooling water, and general service lines in refineries and storage terminals. The WCB wafer butterfly valve body provides the required strength and safety.
Used for ballast control, bilge systems, and engine room cooling water circuits. As a trusted wafer type butterfly valve supplier, we provide valves with protective coatings that withstand the humid and saline atmospheric conditions onboard ships.
For compressed air systems, plant water distribution, and other general-purpose fluid handling, our valves offer an excellent balance of performance and price. Sourcing a wholesale wafer butterfly valve from us ensures quality for large-scale industrial facility outfitting.
In large-scale irrigation systems and agricultural water distribution networks, our valves provide reliable and easy-to-operate flow control. Our efficient wafer butterfly valve factory ensures we can meet the demands of large projects with consistent quality.
Optimizing Procurement for an EPC Project: How JRVAL's Vertically Integrated Manufacturing Delivered a 22% Cost Reduction on Carbon Steel Butterfly Valves Without Compromising Quality.
Project: Retrofit of a 250MW power plant's auxiliary cooling water system.
Requirement: Sourcing of 320 units of DN150-DN400, PN16 hand-lever operated carbon steel wafer butterfly valves for manual isolation duties.
The EPC contractor faced a classic procurement dilemma. The project's budget for valves was stringent, making Tier-1 European brands—initially specified—financially unviable (approx. 40% over budget). However, previous experiences with low-cost suppliers had resulted in project delays due to inconsistent material quality and dimensional inaccuracies. The procurement manager needed a supplier that could offer significant cost optimization while mitigating risks related to material integrity, delivery schedule, and long-term reliability.
Instead of presenting standard procedures as unique benefits, we focused on demonstrating how our specific manufacturing capabilities directly addressed the client's risk and cost concerns.
Our key differentiator was our 81,426 m² facility with an integrated foundry, managed by a 20-year casting expert. This allowed us to control the valve's entire lifecycle from raw material melt to final machining. We provided Material Test Reports (MTRs) directly from our foundry, ensuring the ASTM A216 WCB carbon steel's chemical composition (particularly Carbon and Manganese levels) was optimized for strength and weldability, not just meeting the minimum standard. This direct control reduced casting lead time by an average of 3-4 weeks compared to suppliers who outsource casting.
The client's concern was long-term performance. We specified our valves with a body wall thickness conforming to the more robust GOST standards, resulting in a wall approximately 10-15% thicker than the minimum required by standard ASME B16.34. This provides a tangible increase in mechanical strength and pressure containment safety factor, directly contributing to a lower Total Cost of Ownership (TCO) through extended service life.
We acknowledged that pressure testing to API 598 Rate A (bi-directional zero leakage) is an industry standard. Our value was in the rigor of its application. We provided our full internal QC documentation package, including dimensional reports from calibrated instruments and hydro-test certificates for every valve size. Critically, we were fully transparent that for independent verification, the client would need to appoint a Third Party Inspector (TPI) at their cost. The client engaged SGS for a 5% random inspection at our facility, which passed with zero non-conformities.
With 11 key CNC machining centers, we demonstrated a clear production capacity plan, ensuring the order would not create a bottleneck. This addressed the timeline risk. Furthermore, we provided explicit after-sales commitments: a 24-month warranty for free spare part replacement (seats and seals) and guaranteed availability of standardized parts post-warranty. Technical support is provided online for immediate troubleshooting assistance.
Our commitment to quality is verified by internationally recognized standards. We provide the documentation to prove it.
Ready to configure for your project?
Validate our quality firsthand. We are confident our product's material superiority and build quality will be evident upon inspection.
We stand by our craftsmanship. Our 24-month warranty covers material and manufacturing defects, ensuring your investment is protected.
Every shipment is backed by comprehensive documentation, including material test reports (MTR 3.1), pressure test certificates, and dimensional reports.
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Address: DaZhan Industrial Park, Xiaozhan Town, Jinnan District, Tianjin, China
Copyright @ 2025. Tianjin Jiangrui Steel Casting Co., Ltd.
Technical Support: Magic Lamp - Website
