WCB Flanged Ball Valve

This WCB flanged ball valve is constructed from WCB carbon steel, designed for heavy-duty industrial piping systems，available in sizes DN15 to DN300（Inch 1/2"-10"）. The flanged connection ensures firm, leak-proof installation, easy maintenance and reliable performance even with pipeline vibration and thermal expansion. The full-bore ball structure minimizes flow resistance and pressure loss, allowing quick full opening and tight shut-off.

Available with soft seal and metal hard seal options: soft seals deliver bubble-tight shut-off for general medium-temperature services, with a maximum operating temperature of up to 150°C. While metal hard seals suit high-temperature(up to 425°C), abrasive and particle-laden media such as steam, thermal oil, oil products and mild chemical fluids.

Thanks to the WCB carbon steel body, the valve features great toughness and pressure resistance, performing stably across a wide temperature range and resisting brittle fracture under temperature cycling. The WCB flanged ball valve is widely used in petrochemical, heating, power and pipeline industries for process regulation, line isolation and emergency cut-off.

Engineering Configurator

Elastic Soft Seal (Reinforced PTFE): Optimally paired for water, compressed air, nitrogen, LPG, and clean natural gas distribution lines. It guarantees bidirectional bubble-tight shut-off for general medium-temperature systems up to 150°C.

Metal-to-Metal Hard Seal: Engineered explicitly for abrasive, particle-laden media, superheated factory steam, and heavy thermal oil networks. It sustains continuous, long-lasting isolation under severe workloads up to 425°C.

Application Scenarios of WCB Flanged Ball Valve

WCB flanged ball valves are designed for medium/high pressure and high-temperature working conditions.

1.Petrochemical & Oil & Gas Industry

Pipelines for crude oil, refined oil, natural gas, LPG and mildly corrosive chemical media, for line isolation, flow regulation and emergency shut-off.

2.Thermal Heating Systems

High-temperature steam, thermal oil pipelines, central heating mains and boiler auxiliary piping (max 425°C), resistant to temperature cycles and pressure fluctuations.

3.Power & Energy Industry

Steam, water and auxiliary pipelines in thermal power plants and energy projects, for maintenance isolation and safe emergency cut-off.

4.General Industrial Piping

Circulating water, compressed air, nitrogen and slightly abrasive process pipelines, suitable for automated industrial systems.

5.Municipal Utilities

City gas pipelines, municipal heating mains and industrial park utility piping, for routine isolation and safety control.

Note: Not applicable for strong corrosive media (strong acid/alkali) or ultra-low temperature cryogenic service.

Our Commercial Guarantees

To protect your industrial procurement contracts, Xiangzheng Valve Co., Ltd. stands behind every exported batch with a responsible, transparent B2B support framework:

Technical Drawing Approval: We supply dimensional drawings, catalogs, and technical material test evaluations quickly upon inquiry to ensure alignment before manufacturing begins. ·The Xiangzheng Quality Pledge: If any quality problem or functional manufacturing defect is officially confirmed after arrival at your job terminal, we commit to issuing an immediate direct refund, and your project team can keep the related products free of charge.

Faq

Q1: How does the WCB flange connection adapt to pipeline thermal expansion?

A: Our ball valves feature standardized heavy-duty flange face configurations (including PN64 arrays). The structural design provides robust rigidity against pipeline mechanical vibrations and thermal contraction/expansion, ensuring a firm, leak-proof joint that remains accessible for routine pipeline maintenance.

Q2: Can I mount third-party pneumatic actuators onto your WCB flanged ball valves?

A: Yes. Xiangzheng WCB valves are designed with globally recognized standard actuator mounting pads. Because the valve stems and internal balls are machined to precise dimensional tolerances, the operational torque is reduced and highly predictable, permitting seamless integration with most standard third-party electric or pneumatic drive units.

Q3: What is the standard Minimum Order Quantity (MOQ) for WCB flanged ball valves, and do you support mixed-size purchasing?

A: For standard PN64/Class 300 series spanning DN15 to DN300, our basic MOQ is 10 PCS per size. However, for large pipeline engineering procurement or initial distributor bidding trials, Xiangzheng supports flexible mixed-size container load orders. If special seat configurations or custom high-temperature alloys are requested, the minimum limit is adjusted based on actual cast steel heat production requirements.

Q4: How does your factory guarantee shortened lead times for high-volume automated pipeline project tenders?

A: Operating 5 dedicated soft-seated ball valve production lines and 1 specialized metal hard-seated line allows us to balance flexible scheduling with mass production. Standard stock valves or un-machined WCB bodies can be processed, pressure-tested, and shipped within 7 days. For custom actuating configurations or non-stock large-bore project orders, our streamlined production workflow ensures safe delivery to global logistics terminals within 30 days.

Q5: What protective rust-prevention and seaworthy packaging methods does Xiangzheng use for WCB carbon steel valves?

A: Carbon steel is sensitive to atmospheric humidity during long-distance maritime transit to regions like the Middle East or South America. To counter this, every Xiangzheng WCB flanged ball valve undergoes severe surface sandblasting followed by dual-layer anti-corrosive painting. Before boxing, internal flow paths are fitted with heavy-duty plastic end protectors, wrapped in moisture-barrier VCI anti-rust bags, and finally secured inside robust, fumigation-free plywood cases lined with internal shock-absorbing materials.

Q6: Are your WCB flanged ball valves fully compliant for seamless customs clearance in Russia, Central Asia, and Middle Eastern markets?

A: Yes, absolute import compliance is guaranteed. Xiangzheng industrial valves are backed by an active infrastructure of international certifications, including European CE, Russian EAC/GOST, and regional TS qualifications. All related customs evaluation files, chemical composition test reports (MTRs according to EN 10204 3.1), and pressure testing logs are organized and dispatched promptly with your commercial shipment to ensure zero operational delays at regional entry terminals.