Specialized standards for specialized supply: Strict Standards separation ensures dimensional compatibility, eliminating misalignment risks.
Traceable Craftsmanship: ISO9001 casting with permanent markings enables lifetime quality tracking.
Full-process Reliability: Reinforced components exceed standard product performance in strength/sealing/operation.
Precision-Matched Flanges:Flanges customized from pipeline measurements for leak-free sealing.Thickness reinforced per standards (e.g., HG/T).
Guaranteed Material Integrity: We guarantee an optimized composition for our Carbon Steel, eg. ASTM A216 WCB, maximizing key elements like Manganese for strength while strictly minimizing impurities like Phosphorus and Sulfur, with a full MTC for traceability.
Design & Manufacturing Standards: API 609, ASME B16.34, ASME Section VIII
Leakage Class: API 598 (Bi-directional Zero Leakage)
Side Flange Standards: ASME / ANSI: Class 125LB & 150LB; EN / DIN: PN6, PN10, PN16; BS / AS: BS 10 Table D/E, AS 2129 Table D/E; JIS: 5K, 10K (JIS B2220); GB / HG/T / GOST
Top Flange (Actuator Mounting) : ISO 5211; GB 90°
Face-to-Face Dimension: API 609, ISO 5752, EN 558-1, ASME B16.10, MSS SP-68
Testing & Inspection Standards: API 598; EN 12266-1; ISO 5208; BS 6755-1
Certifications & Conformity: ISO 9001:2015; CE Marking (PED); SIL 3; EAC; BV
Technical description
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Q&A
SPECIFICATION OF THE VALVE |
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|---|---|
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Type of Connection |
Flange |
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Actuation |
Electric |
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Size |
1.5in ~ 48in |
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Pressure |
PN6 ~ PN20 / ANSI Class 125 ~ 150 |
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Testing Pressure |
Shell: 1.5 x Rated Pressure; Seat: 1.1 x Rated Pressure (acc. to API 598) |
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Medium |
Water, Oil, Gas, Steam, Slurries, and various Corrosive Media |
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Medium Temperature |
-25°C to +180°C (-13°F to +356°F) Dependent on seat material |
MATERIAL OF THE VALVE |
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|---|---|
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Body |
Carbon Steel (WCB, WCC) Low-Temp Carbon Steel (LCB, LCC, LC1) |
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Disc |
Cast Iron: DI, CI Stainless Steel: CF8 (304), CF8M (316), CF3 (304L), CF3M (316L), CD3MN (Duplex 2205), CE3MN (Super Duplex 2507), 1.4529 (926) Aluminum Bronze: C95400, C95800 Nickel Alloy: CW6MC (Hastelloy C-276 eq.) |
|
Stem |
Carbon Steel: 45# Stainless Steel: SS410, SS416, SS420; SS304, SS316, SS304L, SS316L; 17-4PH (SS630); Duplex 2205, Super Duplex 2507, 1.4529 Nickel Alloy: Monel K500, Hastelloy C-276 |
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Soft Seat |
Elastomers: EPDM, HTEPDM, NBR (Nitrile Rubber / Buna-N), SIL (VMQ), FKM (VITON™), HYPALON™ Plastics: PTFE, PFA, UHMWPE |
| Coating | • System: Fusion Bonded Epoxy (FBE) • Standard: Internal & External Coating • Dry Film Thickness (DFT): 200-250 µm |
Voltage Options: AC 220V, 380V; DC 24V
Frequency: 50Hz / 60Hz
Control Type: On/Off; Modulating; VF (Variable Frequency) & Fail-Safe
Modulating Input: 4-20mA / 0-10V DC
Current Draw: Varies by model (e.g., 0.2A ~ 2.5A)
Protection Class: Standard IP67 (NEMA 4/4X)
Optional Protection: IP68 (Submersible)
Housing Material: Die-cast Aluminum Alloy
Coating: Anti-corrosion Powder Coating
Ambient Temp: -20°C to +70°C (-4°F to +158°F)
Manual Override: Handwheel for Emergency Use
Position Indicator: Dome-type Visual Indicator
Limit Switches: 2x Open, 2x Close (Standard)
Torque Protection: Electronic Over-torque Cutoff
Optional Fail-Safe: Battery Backup Module
Before machining even begins, we solve the biggest challenge of large steel castings: rough surfaces caused by rapid cooling. By preheating shell molds up to 800°C, we guarantee superior blank quality.
Watch how we combine advanced casting techniques with 0.1mm CNC precision to manufacture industrial valves capable of withstanding the toughest conditions.
Our commitment to quality is verified by internationally recognized standards, providing the documentation and peace of mind you need for your critical industrial applications.
We leverage robust carbon steel materials and precision manufacturing to deliver automated valve solutions built for strength, reliability, and long service life in demanding industrial, water, and utility applications.
Founded by casting experts, we guarantee material integrity from the source. Through PMI spectral testing, we verify alloy compositions, ensuring every butterfly valve casting strictly adheres to ASTM/EN standards for optimal performance and longevity in automated systems.
Our advanced CNC centers machine critical interfaces, like the ISO 5211 mounting pad, to exacting tolerances. This precision guarantees effortless, accurate alignment with any standard electric or pneumatic actuator, ensuring reliable automated control.
With two decades of field validation in automated applications, our valve designs are proven to be sound and reliable. This experience means our products deliver consistent, dependable performance when integrated into complex control systems.
Our electric actuated carbon steel flange valves are the workhorse of modern industry, providing dependable and cost-effective automated flow control for a wide range of essential applications.
Essential for large commercial and industrial buildings, our automated valves provide reliable isolation and control in chilled water loops and heating systems. The robust design makes our hvac butterfly valve ideal for plant room automation.
From treatment plants to pumping stations, carbon steel is the standard for municipal water infrastructure. A reliable electric water butterfly valve ensures precise control over large-volume flows in critical distribution networks.
In power plants, carbon steel valves are vital for cooling water intake, condenser lines, and other auxiliary systems. For certain applications, a specially configured high temperature butterfly valve offers reliable service in demanding thermal conditions.
For tank farms, terminals, and pipeline utility lines handling non-corrosive hydrocarbons, our valves provide dependable isolation. Each valve is built to meet industry standards, with the api 609 butterfly valve design ensuring safety and performance.
The backbone of any manufacturing plant, our valves excel in utility applications like compressed air, nitrogen, cooling water, and process water. An automated industrial butterfly valve is a cost-effective solution for plant-wide flow control.
Onboard vessels, carbon steel valves are used extensively in ballast systems, engine room cooling circuits, and bilge systems. The electric actuation of our marine butterfly valve integrates seamlessly with ship automation and control systems.
In fire suppression systems for commercial and industrial facilities, our valves are used for main line isolation and control. A typical 6 inch butterfly valve with electric actuation can be integrated into the fire control panel for remote operation.
For managing water intake, effluent lines, and pulp stock at lower consistencies, carbon steel provides a durable solution. We manufacture a large diameter butterfly valve to handle the high-volume flows common in this industry.
Our valves are used for automated control of process water, molasses, and low-pressure steam lines. The robust construction of a carbon steel flange butterfly valve ensures reliable performance in the demanding environment of a sugar mill.
While carbon steel offers excellent strength, we provide specialized coatings, liners, and seat materials to enhance its performance in mildly corrosive or abrasive environments, extending service life.
How a mid-sized chemical manufacturer optimized its valve procurement strategy to achieve a 22% cost reduction and a 4-week lead time improvement for a corrosive media pipeline project, without compromising on material integrity or long-term performance.
Client Background: A Regional Specialty Chemical Producer
A specialty chemical plant in Southeast Asia was undergoing a critical expansion of its acidic cleaning agent production line. The project's success depended on procuring 52 electric, corrosion-resistant butterfly valves (DN150 to DN400) that met stringent performance and safety standards, all within a tight 10-week installation window and a controlled budget.
The Challenge: Balancing Cost, Lead Time, and Verifiable Quality
Project Engineer Mr. Hassan faced a typical procurement dilemma. Quotes from premium European brands, while reliable, exceeded the valve budget by nearly 30% and quoted lead times of 12-14 weeks, which would severely jeopardize the project timeline. On the other hand, low-cost options from uncertified traders presented significant risks of material non-compliance (e.g., insufficient molybdenum content in SS316) and inconsistent manufacturing quality—issues that had led to premature valve failures in past projects.
Instead of simply submitting a quote, we engaged with Mr. Hassan's engineering team to propose a comprehensive technical and supply chain solution. Our value proposition was built on verifiable quality control and transparent processes, rooted in our in-house foundry capabilities.
As a manufacturer with an 81,426m² facility that includes an integrated foundry, we demonstrated end-to-end control. Our founder, a casting expert with 20 years of experience, personally oversees the process. For the project's required ASTM A351 CF8M (SS316) valves, we provided batch-specific Material Test Reports (MTRs) directly from our foundry. These reports showed a consistent molybdenum content between 2.2-2.5% (exceeding the 2.0% minimum standard), which is critical for ensuring chloride corrosion resistance. We also made it clear that the client was welcome to commission an internationally recognized third-party inspection agency, such as SGS, at their own expense to conduct tests at our facility before shipment, ensuring complete transparency.
Leveraging our 11 key CNC machining centers, we ensured all valve bodies and flange faces strictly adhered to EN 1092-1 PN16 dimensional tolerances. The final QC dimensional inspection report, generated using calibrated measuring tools (e.g., vernier calipers), was included in each valve's documentation package, guaranteeing seamless on-site installation and perfect alignment.
Acidic media demand reliable, long-term sealing. Our solution featured EPDM-lined valves that achieved bi-directional zero-leakage performance under the API 598 Rate A test standard. This was accomplished through our proprietary seat geometry, which ensures uniform pressure distribution between the disc and seat, thereby extending the sealing life without increasing material costs—a core tenet of our design philosophy.
By controlling the casting and machining processes internally, we eliminated the delays and uncertainties common with outsourced production. We committed to and successfully delivered on an 8-week ex-works schedule, a full 4 weeks shorter than the European alternatives, effectively de-risking the client's critical installation timeline.
We provided a clear support framework: a 24-month warranty covering defects in materials and workmanship. During this period, any required spare parts (such as seats or gaskets) would be supplied free of charge. After the warranty period, because our valves are manufactured to international standards (e.g., ISO 5752), the client can easily source replacement parts from the market without being locked into a proprietary supply chain. Our technical team is available for online support to assist with any operational inquiries.
The partnership delivered specific, measurable results that directly addressed the client's initial challenges.
Engineered for industrial strength and reliability.
Carbon steel (ASTM A216 WCB) is a highly cost-effective choice for most general industrial applications. It is ideal for media such as water, air, steam, oil, and other non-corrosive fluids. When your application does not involve aggressive chemicals like strong acids, alkalis, or chlorides, and is budget-sensitive, carbon steel offers the ideal balance of strength and economy.
As a manufacturer with our own foundry, we control the material from the source. Every batch of WCB castings is produced in strict accordance with the ASTM A216 standard. Each valve body is cast with a traceable heat number, and we provide a detailed Material Test Report (MTR) with every shipment, clearly listing its chemical composition (e.g., carbon, manganese, silicon content) and mechanical properties (e.g., tensile and yield strength) to ensure 100% material compliance.
Our standard anti-corrosion treatment involves sandblasting the valve body surface followed by a multi-layer epoxy resin coating. The standard total dry film thickness (DFT) reaches 250-300 microns (μm), providing effective protection against atmospheric corrosion and meeting the requirements for C3/C4 industrial environments as per the ISO 12944 standard. For more severe environments, we can also provide customized heavy-duty coating solutions upon request.
We precisely size the actuator based on the valve's specific torque requirements, adding a safety factor of at least 30% to handle pressure fluctuations and long-term wear, ensuring reliable actuation. The valve-actuator connection uses a standard ISO 5211 mounting flange, which guarantees perfect alignment and interchangeability. Every complete actuated valve assembly is cycle-tested before shipment.
We guarantee that the material you specify is the material you receive. Our foundry-direct model and included MTRs provide verifiable proof of chemical composition and mechanical properties for every valve.
We guarantee a fully integrated and tested valve assembly. The actuator is properly sized with a safety margin, mounted per ISO 5211, and cycle-tested to ensure smooth, dependable operation right out of the box.
We provide a comprehensive 24-month warranty. During this period, we offer free spare parts and responsive online technical support. Our standardized production ensures easy access to parts for the valve's entire lifecycle, lowering your long-term maintenance costs.
Looking for a reliable, cost-effective automated valve solution for your industrial application? Contact our engineers for a technical consultation.
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Address: DaZhan Industrial Park, Xiaozhan Town, Jinnan District, Tianjin, China
Copyright @ 2026. Tianjin Jiangrui Steel Casting Co., Ltd.
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