Low-Temperature Material Assurance: ASTM A352 LCB/LCC steel ensures impact toughness and mechanical strength at -40°C+, preventing low-temperature brittleness cracks.
Reinforced Valve Body Design: HG/T-compliant structural optimization enhances wall thickness and strength, resisting stress under low temperatures for extended durability.
Flange Precision Customization: Tailored flange adjustments eliminate pipeline dimensional mismatches, ensuring leak-free connections.
Actuator Upgrade Flexibility: ISO 5211-compliant platform supports seamless pneumatic/electric actuator retrofits for system adaptability.
Design and Manufacture: ASME B16.34; ASME VIII; API 609; AWWA
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 |
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|---|---|
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Type of Connection |
Wafer |
|
Actuation |
Round/ Square Head |
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Size |
1 1/2in ~ 48in (DN40~DN1200) |
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Pressure |
10bar~20bar (1.0mpa~2.0mpa) |
|
Testing Pressure |
256psi |
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Medium |
Water, Oil, Gas, Steam, Corrosive Media, Slurry, etc. |
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Medium Temperature |
-25~180℃ |
Material of the Valve |
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|---|---|
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Body |
WCB/ WCC/ LCB/ LCC/ LC1 |
|
Disc |
DI/ CF8/ CF8M/ CF3/ CF3M/ 2205/ 2507/ 1.4529/ HC276/ C95400/ C95800 |
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Stem |
45#/ SS410/ SS416/ SS420/ SS304/ SS316/ SS316L/ 17-4/ 2205/ 2507/ 1.4529/ K500/ CF8/ CF8M/ HC276 |
|
Soft Seat |
EPDM/ NBR/ SIL/ FKM/ FPM/ VITON/PTFE/ HYPALON/ UHMWPE |
| Coating | Epoxy Resin 200um~250um |
Our bare stem carbon steel valves are the foundation of reliable automated systems. By controlling the entire manufacturing process—from raw material casting to precision CNC machining of the ISO 5211 mounting pad—we deliver valves ready for seamless integration with any electric or pneumatic actuator.
We build on a foundation of strength, using only certified WCB and LCB carbon steel, validated by in-house PMI and mechanical testing to guarantee the material integrity required for industrial automation.
Our CNC machining centers produce a perfectly flat and dimensionally accurate ISO 5211 top flange, ensuring perfect actuator alignment, reduced side-load on the stem, and extended operational life.
Every valve body is protected by a 250μm+ fusion-bonded epoxy coating applied via electrostatic spray, creating a resilient barrier against corrosion and abrasion, essential for long-term field deployment.
Our bare stem carbon steel wafer butterfly valves are specified for automated systems across diverse sectors. They provide the reliability and seamless actuator integration required for modern process control.
In automated chemical plants, our valves are crucial for controlling process fluids. The bare stem design with an ISO 5211 top flange ensures easy mounting of pneumatic actuators for precise, remote control, making it an ideal core component for a complete Lined Butterfly Valve solution when paired with a PFA/FEP liner.
For municipal water treatment facilities, our valves enable automated flow regulation in large-diameter pipelines. As a trusted Awwa Butterfly Valve manufacturer, we ensure our products meet stringent industry standards for reliability and long service life in automated filtration and distribution systems.
The core of modern, efficient building management systems relies on automated flow control. Our Hvac Butterfly Valve is designed for seamless integration with BMS, allowing for precise temperature regulation in large-scale heating and cooling loops through automated actuator control.
In tank farms and processing facilities, reliable automated shut-off is critical for safety and efficiency. This wafer type valve, when fitted with an electric actuator, provides dependable performance for controlling the flow of various hydrocarbons and utility fluids within the plant's distributed control system (DCS).
The production of pulp and paper involves numerous automated processes handling water, chemicals, and fibrous slurries. The robust construction and reliable sealing of our Wafer Style Butterfly Valve make it a preferred choice for automated control loops throughout the mill, from the pulp stock lines to the chemical recovery areas.
Automated control of abrasive slurries demands durability. By combining our carbon steel body with a highly wear-resistant liner, we create a Rubber Lined Butterfly Valve that can be automated to manage slurry flows precisely, minimizing downtime and maximizing throughput in mineral processing circuits.
In automated food production lines, hygiene and precision are key. Our butterfly wafer type valve with a food-grade EPDM seat and polished disc integrates perfectly into automated Clean-in-Place (CIP) systems, ensuring both product purity and process efficiency.
High-purity water (WFI) systems and utility lines in pharmaceutical manufacturing require precise, automated control. When configured as a Ptfe Lined Butterfly Valve, our bare stem model offers a non-reactive, contaminant-free flow path essential for maintaining stringent quality standards in automated batching processes.
Large-scale desalination facilities are highly automated. Our Marine Butterfly Valve, featuring a durable epoxy-coated carbon steel body and specialized alloy trim, provides reliable, long-term performance in corrosive seawater environments when integrated into automated pressure and flow control systems.
Our bare stem carbon steel valves are engineered to excel in environments where automation is not just an option, but a necessity for efficiency, safety, and precision.
Designed for applications with frequent opening and closing, our valves feature a robust stem and bearing system. This ensures that the industrial butterfly valve can withstand the demands of high-cycle automation without premature wear, ensuring process uptime.
In locations like remote pumping stations or pipeline terminals, manual intervention is impractical. Our valves are the ideal choice, allowing for reliable remote actuation and monitoring, backed by a trusted wafer butterfly valve manufacturer.
The standardized ISO 5211 mounting pad on our center line butterfly valve guarantees compatibility with a wide range of actuators. This facilitates direct integration into centralized PLC or DCS systems for precise, feedback-controlled operation.
Near pumps, motors, and other heavy machinery, our solid carbon steel butterfly valve body and secure top flange provide a stable platform for actuators, resisting vibration that could lead to stem misalignment and control issues.
Our standard multi-layer coating provides excellent protection against the elements. These epoxy coated butterfly valves resist UV degradation, humidity, and temperature swings, ensuring long-term reliability for the valve and its mounted actuator.
For complex processes like batching or blending, multiple valves must act in perfect unison. The consistent dimensional accuracy of our China wafer style butterfly valve ensures that when automated, they respond predictably and uniformly for precise process control.
While the carbon steel body provides strength and economy, our ability to customize internal components allows these valves to be deployed in a wide range of mildly corrosive environments.
The heavy-duty epoxy coating offers superior external protection against salt spray. When specified with a stainless steel or bronze disc, a 6 wafer butterfly valve provides a cost-effective and durable solution for automated seawater cooling systems.
For dilute acidic solutions, a carbon steel body is an economical choice when protected by a full PTFE liner. This configuration provides the chemical resistance of PTFE where it matters most, making our PN16 butterfly valve a versatile option for process industries.
A standard WCB wafer butterfly valve combined with a robust EPDM or specialized FKM/Viton seat offers excellent resistance to many common industrial alkalis and caustic solutions, ideal for automated chemical dosing and transfer applications.
In water treatment and large commercial pools, the combination of a coated body and a high-grade EPDM seat is critical. Our butterfly valve EPDM seat material is specially formulated to resist degradation from chlorine, ensuring a tight seal over thousands of cycles.
For applications with trace H2S, our A216 WCB butterfly valve body can be specified with internal wetted parts (disc, stem) made from materials compliant with NACE MR0175, providing a safe and reliable automated valve solution.
The thick, non-porous epoxy coating on the valve exterior acts as a shield in environments with aggressive chemical fumes, like plating shops or chemical storage areas. This ensures the integrity of an EPDM lined butterfly valve and its mounted actuator over time.
Optimizing Automated Skids for a Southeast Asian Water Utility Project
Client: A leading system integrator in Malaysia specializing in automated water management solutions.
Project: Supply of 250 automated valve assemblies for modular pumping skids destined for a municipal water distribution network upgrade.
Product: DN150 - DN400 Bare Stem Carbon Steel Wafer Butterfly Valves (WCB Body, SS316 Disc, EPDM Seat).
The system integrator faced a three-fold challenge. Their end-client required a 15-year design life for the skids, necessitating high-cycle valve reliability. Secondly, as they were integrating their own specified pneumatic actuators, the bare stem valves needed exceptional dimensional accuracy on the ISO 5211 mounting flange to prevent premature stem seal failure. Lastly, quotes from established European brands exceeded the project's valve procurement budget by over 25%, while previous experiences with low-cost suppliers led to unacceptable failure rates during factory acceptance testing (FAT).
JRVAL was selected after a rigorous technical and commercial evaluation. Our approach focused on providing a solution that addressed the client's core requirements for verifiable quality and mechanical integrity, rather than just a low price.
As a foundry with 20+ years of casting expertise, we provided full material traceability. Each valve batch was supplied with an EN 10204 3.1 Material Test Certificate (MTC), detailing chemical composition and mechanical properties. Our WCB casting chemistry was consistently in the upper quartile of the ASTM A216 standard, ensuring superior structural integrity. This level of transparency satisfied the end-client's quality audit requirements from the source.
The client's primary concern was actuator alignment. Our 11 CNC machining centers ensured the ISO 5211 top flange was machined to a flatness tolerance of 0.05mm. This precision minimizes actuator side-loading on the valve stem, a common cause of packing leaks in high-cycle automated applications. We provided QC dimensional reports for the first article batch, verified with calibrated digital instruments, confirming consistent compliance.
Our vertical integration from casting to final assembly allowed us to offer a price point that resulted in a 22% cost saving on the valve procurement budget compared to the initial European quotes. Leveraging our 81,426 m² facility, we established a delivery schedule of 50 units per fortnight, completing the full 250-unit order in 10 weeks — well within the 12-week project timeline.
Our valves feature a heavier body design, exceeding standard wall thickness requirements by an average of 10%, providing greater rigidity. The aesthetic finish, including an inlaid stainless steel nameplate, reflected the high-quality standard expected by the end user. We backed our product with a 24-month warranty covering free replacement of parts and provided online technical support for the integrator's assembly team.
Our commitment to quality is verified by internationally recognized standards. We provide the documentation to prove it.
Ready for actuator integration in your project?
Our valves are engineered for seamless automation integration. Every valve features a top flange machined in strict accordance with ISO 5211 standards. This guarantees dimensional compatibility with standard electric and pneumatic actuators, minimizing installation time and eliminating stem side-loading, which extends the valve's operational life.
As a foundry-direct manufacturer, we control quality from the molten metal. Our competitive advantage lies in:
Our wafer butterfly valves are designed with universal compatibility in mind. The body and alignment holes are precision-machined to fit between a wide range of international flange standards, including ANSI B16.5 Class 150, DIN PN10/PN16, and JIS 10K/16K, ensuring a perfect fit and seal in global projects.
We believe in total transparency. Every shipment is accompanied by a comprehensive quality dossier, which includes:
We stand behind our products with a comprehensive 24-month warranty covering defects in materials and workmanship. Because our valves are built to international standards, spare parts like seats and seals are easily interchangeable. Should you need assistance, our technical team is available online to provide prompt troubleshooting and support.
As the source manufacturer, we oversee the entire process from casting to final testing, ensuring superior material integrity and full traceability.
Our 11 CNC centers guarantee every ISO 5211 top flange is machined for perfect actuator alignment, enhancing the reliability of your automated systems.
Every shipment is backed by a full documentation package—including MTR and pressure test reports—providing the verifiable proof of quality you need.
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Address: DaZhan Industrial Park, Xiaozhan Town, Jinnan District, Tianjin, China
Copyright @ 2025. Tianjin Jiangrui Steel Casting Co., Ltd.
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