China High Quality Ball Valve Manufacturer
As a company with several API and ISO qualifications, we have provided more than 1 million high-performance ball valves for the global energy, chemical, construction, and shipbuilding fields, setting an industry record of zero accident operation for 12 consecutive years.
The sealing type of JiangHeng ball valve can still maintain good sealing performance under the working condition of 30Mpa ultra-high pressure fluctuation in time. The surface of the valve ball adopts the supersonic flame spraying (HVOF) process to form a 50um thick tungsten carbide alloy layer, which is said to increase the particle erosion life to 8 times that of the traditional ball valve.
According to your requirements, JiangHeng can also customize special ball valves containing rare materials, sizes, sealing surface materials, driving methods, pressure sizes, colors and other requirements.
Whether you choose a ball valve for industrial or general use. JiangHeng is your best supplier. We offer competitive prices while also guaranteeing quality.
JH Ball Valve Precision And Excellence
- Perspective Core Structure: High-definition 3D exploded view and operation animation intuitively demonstrate the precise floating ball/fixed ball design and bidirectional sealing principle of Jiangheng ball valve.
- Zero The Cornerstone of Leaks: Uncover how advanced polymer seals and metal secondary seals work together to ensure absolute sealing in harsh operating conditions.
- Certification is in Our DNA: Every step strictly complies with international standards such as API 6D, API 607/6FA (fire protection), EN ISO 17292, ASME B16.34, etc., creating globally recognized reliability.
- Key Features Presented: Dynamically demonstrate the core advantages such as low operating torque, full-bore design (reduced pressure loss), and fire-safe structure.
- Strong and reliable, excellent performance: Jiangheng ball valve adopts high-quality forged/cast valve body and hardened valve stem, specially designed for harsh working conditions such as high pressure, high temperature, corrosive media, etc.
- Core feature guarantee:
- Bidirectional 0 leakage seal: ensures safe and worry-free fluid control.
- Ultra-low operating torque: easy to open and close, reducing operating load.
- Full bore design (optional): Minimizes flow resistance and reduces energy consumption.
- Fire safety certification (API 607/6FA): The last line of defense in extreme situations to ensure safety.
- International Quality Certification: We strictly implement API 6D, EN ISO 17292, ASME and other core standards. Our products have passed CE, SIL, CRN and other major global market certifications, and our quality is recognized around the world.
- Wide range of applications: Reliable solutions for key industries such as oil and gas, chemicals, electricity, water treatment, and shipping.
FAQ—Industrial Ball Valve
The ball valve controls the flow of the medium by rotating the ball with a through hole (90° switch). It has the characteristics of fast opening and closing and low flow resistance . It is suitable for high-pressure and high-frequency operation scenarios in industries such as petroleum, natural gas, chemical, and water treatment , and is especially suitable for full-open/full-close cutoff requirements.
Core differences:
- Sealing : Ball valves have tighter sealing (metal/soft seal) and are suitable for high pressure; butterfly valves are suitable for low pressure and large diameter;
- Flow resistance : When the ball valve is fully opened, the flow resistance is close to zero, while the butterfly valve has valve plate resistance;
- Cost: Butterfly valves are cheaper and suitable for projects with limited budgets.
Selection suggestions : Choose ball valve for high pressure and tight sealing, and butterfly valve for low pressure and large flow.
Material needs to match medium characteristics:
- Water/steam : cast steel (WCB) or stainless steel (304/316);
- Corrosive media : Hastelloy, Monel;
- High temperature service : Chrome-molybdenum steel (ASTM A217 WC6) or ceramic coated ball.
Key installation steps:
- Direction calibration : the arrow on the valve body is consistent with the flow direction of the medium;
- Welding protection : Remove the valve core when welding the pipeline to prevent high temperature from damaging the seal;
- Support and fixation : Large-diameter ball valves need to be equipped with brackets to avoid pipeline stress deformation;
- Pressure test : After installation, perform a sealing test at 1.5 times the working pressure.
Leakage causes and countermeasures:
- Valve seat wear : replace PTFE or metal valve seat;
- Ball scratches : polish or replace the hard alloy (such as tungsten carbide) ball;
- Packing failure : Upgrade to graphite braided packing, resistant to high temperature and high pressure.
- Full bore : The channel diameter is consistent with the pipeline, with minimal flow resistance, suitable for pigging or high flow systems;
- Reduced diameter : The channel is reduced, the cost is lower, but the pressure loss is larger, which is suitable for non-harsh working conditions.
- Pneumatic ball valve : suitable for remote control and high-frequency operation (such as automated production lines), requires solenoid valves and controllers;
- Manual ball valve : low cost, suitable for simple opening and closing or maintenance of spare pipelines.
High-pressure ball valves must meet the following requirements:
- Strengthen the valve body : increase the wall thickness, the material must comply with ASTM A182 F316;
- Metal seal : Spring-loaded valve seat is used to compensate for thermal expansion and contraction;
- Explosion-proof design : API 6D/6A certified, suitable for extreme working conditions in oil and gas fields.
Maintenance strategy:
- Regular lubrication : Fill the valve stem with high-temperature grease (such as Molykote) every 6 months;
- Clean the valve cavity : flush the residual medium (especially liquids that are prone to crystallization) when the machine is shut down;
- Check the seal : Perform a nitrogen leak test once a year.
Core certification includes:
- API 6D : Standard for oil and gas pipeline valves;
- ISO 17292 : General specification for metal ball valves for industrial use;
- CE/PED : EU Pressure Equipment Directive (for high pressure hazardous media);
- Fireproof certification : API 607/6FA, ensuring that the seal will not fail in case of fire.