Engineered for excellence, reliability, and absolute hygiene in water transmission systems.
YD Series Wafer butterfly valve's flange connection is universal standard, and the material of handle is aluminium; It can be used as a device to cut-off or regulate the flow in various medium pipes.
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Allows downstream pipelines and equipments online repair, and it can be installed on pipe ends as exhaust valve. Alignment features of lugged body allows easy installation.
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Concentric disc and bonded liner, featured by a higher strength of the body and better resistance to pipe pressures as safety factor.
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Soft sleeve seated butterfly valve is Wafer pattern with flanges, the face to face is EN558-1 20 series. The soft sleeve seat can isolate the body from media.
View DetailsAs the economic heartbeat of Malaysia, Kuala Lumpur and its surrounding Klang Valley region are undergoing unprecedented industrial and urban expansion. From state-of-the-art commercial high-rises to massive water treatment facilities, the demand for high-quality, certified flow control products is higher than ever. Among these, the WRAS (Water Regulations Advisory Scheme) butterfly valve stands out as a critical component for safe, efficient, and reliable fluid management.
Although WRAS is a British certification system, it is recognized globally—including in Malaysia—as a gold standard for materials used in contact with potable water. WRAS approval ensures that the non-metallic materials (such as EPDM, NBR, and specialized coatings) used in the butterfly valves do not contaminate drinking water, promote bacterial growth, or affect the taste, color, or smell of the water. For municipal water projects in Kuala Lumpur, choosing WRAS-certified valves means complying with stringent safety parameters and ensuring public health safety.
Kuala Lumpur's unique tropical climate and rapid urbanization present distinct engineering challenges. The local market demands valves that can withstand high humidity, temperature fluctuations, and continuous operation in demanding environments. Key application scenarios in the region include:
The valve manufacturing industry is shifting towards smart technology and sustainability. In Kuala Lumpur, there is a clear trend toward integrating IoT (Internet of Things) and automation into water distribution networks. Modern systems utilize butterfly valves coupled with intelligent electric or pneumatic actuators with IP67/IP68 ingress protection. These smart configurations allow operators to monitor flow rates, valve positions, and system pressures remotely, enabling predictive maintenance and minimizing downtime.
Additionally, material science innovation is leading to the development of new, eco-friendly coatings that offer superior wear resistance and extended service life. Tianjin Tanggu Water-Seal Valve Co., Ltd. (TWS Valve) is at the forefront of these developments, continuously innovating to deliver products that meet the highest international standards of environmental safety and operational efficiency.
Tianjin Tanggu Water-Seal Valve Co., Ltd. (TWS Valve) was founded in 2003 and is a professional manufacturer that integrates design, development, production, installation, sales, and service. We operate two advanced manufacturing plants: one in Xiaozhan Town, Jinnan, Tianjin, and the other in Gegu Town, Jinnan, Tianjin. Today, we have grown to become one of China’s leading suppliers of water management valve products and comprehensive product solutions.
Furthermore, we have built up our own strong, globally recognized brand: “TWS”. TWS Valve's quality system is strictly certified by ISO 9001, and most of our products carry prestigious international approvals including CE and WRAS, making us a trusted partner for critical water infrastructure projects in Kuala Lumpur and around the globe.
Providing industry-leading engineering, certified safety, and customized fluid control solutions.
Our manufacturing and quality systems are strictly certified by ISO 9001, ISO 14001, WRAS, CE, EN1074-1, ABS, and CCS, ensuring absolute compliance with international standards.
We continuously develop advanced flow control technologies, designing specialized valves for seawater desalination, high-pressure water systems, and flue gas desulfurization.
With competitive pricing, premium quality, and professional support, TWS Valve is a trusted long-term partner for major municipal and industrial projects worldwide.
Explore our wide range of resilient seated valves, check valves, strainers, and actuators.
Features a universal standard flange connection and lightweight aluminum handle. Through selecting different materials of disc and seal seat, as well as the pinless connection between disc and stem, the valve can be applied to worse conditions, such as desulphurization vacuum and seawater desalinization.
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Allows downstream pipelines and equipment online repair, and it can be installed on pipe ends as an exhaust valve. Alignment features of the lugged body allow easy installation between pipeline flanges, saving time and costs.
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Featuring a centric disc and bonded liner, these valves offer all the common features of other wafer/lug series but are enhanced by a higher strength of the body and better resistance to pipe pressures as a safety factor.
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Wafer pattern with flanges, conforming to EN558-1 20 series face-to-face standards. Easy correcting during installation is enabled by correcting holes. The soft sleeve seat completely isolates the body from the media.
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Incorporates a positive retained resilient disc seal and an integral body seat. Features three unique attributes: lower weight, higher strength, and lower operating torque. Eccentric action reduces seat contact during operation, extending valve life.
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A wedge gate valve with a non-rising stem (NRS) design, suitable for use with water and neutral liquids (sewage). Features include online replacement of top seal, integrated brass nut, and an integral rubber-clad ductile iron disc.
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Equipped with two torsion springs added to each of the pair valve plates, which close the plates quickly and automatically to prevent medium backflow. Can be installed on both horizontal and vertical pipelines.
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Designed for mechanically removing unwanted solids from liquid, gas, or steam lines using a perforated or wire mesh straining element. Protects pumps, meters, control valves, and other downstream equipment.
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A key hydraulic balance product used for precise flow regulation in HVAC water pipeline systems. Ensures static hydraulic balance across the entire system, matching actual flow with the design flow.
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Combining a high-pressure diaphragm air valve and a low-pressure inlet/exhaust valve, this composite valve provides both exhaust and intake functions. Automatically discharges small air accumulations under pressure.
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Slight resistance Non-return Backflow Preventer (Flanged Type) TWS-DFQ4TX-10/16Q-D is a water control combination device designed to limit pipeline pressure and ensure one-way flow, preventing backflow contamination.
See MoreCustom engineering for challenging industrial environments and specialized fluid media.
The medium flow part adopts new special coatings and materials according to different working conditions to meet the demanding corrosion resistance requirements of the seawater desalination industry.
Designed for high-pressure water pipelines, water supply, and drainage in high-rise buildings. Characterized by high pressure resistance, low flow resistance, and bubble-tight shut-off.
Flange and wafer centerline butterfly valves widely used in flue gas desulfurization (FGD) and similar harsh working conditions. Made from safe, wear-resistant, and chemically stable materials.
TWS Valves are widely used in water treatment, water distribution, wastewater management, dams, hydropower, power plants, and diverse industrial sectors. Our quality system is strictly certified by ISO 9001, and most products carry approvals from CE and WRAS.
Thanks to our high quality, competitive pricing, and professional service, our products have been successfully deployed in major national projects and exported to Europe, North America, South America, Southeast Asia, and Africa. We have become a trusted, long-term OEM/ODM partner for many world-famous valve brands.
TWS Valve always adheres to the core management philosophy: “All For Customers, All From Innovation”. We continuously enhance our market competitiveness, casting masterpieces with modern concepts to define new standards in valves for water.
CE, ISO9001, ISO14001, WRAS, EN1074-1, ABS, CCS






Strictly compliant with international engineering standards for reliable, high-efficiency flow control.
High-speed composite air release valve offering both intake and exhaust capabilities for pipeline protection.
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Designed for quick installation in grooved piping systems, widely used in fire protection and HVAC.
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Universal standard wafer type butterfly valve featuring concentric design and reliable bubble-tight sealing.
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Compact design preventer to safeguard potable water systems from back-siphonage and backpressure.
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High-durability wafer butterfly valve with resilient seat, suitable for water distribution and industrial loops.
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Heavy-duty flanged type backflow preventer engineered for municipal connection points and sewage prevention.
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Resilient seated gate valve featuring non-rising stem (NRS) design, offering low torque and long service life.
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