BTL HANDWHEEL BUTTERFLY VALVE | MODEL: D371X-10

The BTL D371X-10 handwheel butterfly valve is an ideal solution for medium- and large-diameter pipelines that require frequent opening and closing. The valve is equipped with a gearbox combined with a handwheel, allowing operators to work smoothly and precisely without excessive effort. Its compact wafer-type design makes installation easy in water supply and drainage systems, fire protection, HVAC, and other industrial infrastructure pipelines.

General Information on the BTL D371X-10 Handwheel Butterfly Valve

The BTL D371X-10 handwheel butterfly valve is a wafer-type design, clamped between two pipe flanges. The valve is operated through a handwheel gearbox, which makes opening and closing large-diameter pipelines (DN200 and above) smoother and helps limit sudden water hammer. In addition, the gearbox is self-locking, holding the disc firmly in any position without being driven back by the flow pressure acting on the disc. This feature makes the valve suitable for applications that require relative flow regulation at intermediate opening angles.

Detailed Component Table of the D371X-10 Handwheel Butterfly Valve

Dimension Table of the BTL Handwheel Butterfly Valve (DN50 – DN400)

Operating Characteristics and Installation Position of the BTL Handwheel Butterfly Valve

BTL handwheel butterfly valves are widely used in urban water supply and drainage systems, fire protection, HVAC, and industrial pipelines that require frequent opening and closing, or are installed in locations where operating a lever handle is difficult.

Handwheel butterfly valves are suitable for both full open/close service and flow regulation at intermediate opening angles, thanks to the gearbox’s self-locking feature, which holds the disc at the desired position without any additional locking mechanism. Do not apply excessive force or use an extension bar (cheater bar) to turn the handwheel when it feels stuck, as this may damage the gearbox gears or bend the stem. Check the cause of the jam before continuing to operate the valve.

The valve is clamped directly between two pipe flanges using bolts passing through the valve body, with no separate flange required. It can be installed in horizontal or vertical pipelines depending on the design of each system. However, for large-size handwheel butterfly valves or valves that are opened and closed frequently, it is recommended to install them on a horizontal pipeline with the stem in a vertical orientation to make handwheel operation more convenient.

Note that sufficient clearance must be left so the disc can open a full 90 degrees without being obstructed by adjacent fittings such as elbows, tees, or other valves installed nearby, because the butterfly disc protrudes partly into the adjacent pipe when open. Also ensure there is enough space above or beside the valve to operate the handwheel, especially for installations below floor level or in manholes, where the working clearance must be calculated in advance.

Where to Buy Genuine BTL D371X-10 Handwheel Butterfly Valves in Ho Chi Minh City

With many years of experience in importing and supplying industrial valves and piping accessories, An Phu Thanh is a trusted supplier of genuine BTL Model D371X-10 handwheel butterfly valves in Ho Chi Minh City and nationwide. We provide contractors and construction units with high-quality pipeline regulation solutions in a wide range of sizes from DN50 to DN400, meeting the strict technical standards of water supply and drainage, fire protection, and HVAC systems.

An Phu Thanh places great importance on clear product origin and the ability to supply large quantities from stock, and is ready to provide complete technical documentation, CO/CQ certificates, and genuine manufacturer warranty. As a result, customers can take full control of construction schedules, investment budgets, and acceptance procedures for each project.

To receive a BTL D371X-10 handwheel butterfly valve quotation that fits your actual needs, simply provide basic information such as DN size, flange connection standard, working medium, and order quantity. An Phu Thanh’s team will promptly advise on the correct specification, propose the optimal solution, and send a discounted price list based on current market conditions.

Contact An Phu Thanh via Hotline/Zalo OA 0946 729 913 for in-depth technical consultation and to get the latest BTL D371X-10 handwheel butterfly valve quotation today!