{"id":15287,"date":"2026-10-16T02:49:07","date_gmt":"2026-10-16T02:49:07","guid":{"rendered":"https:\/\/anphuthanhvalve.com\/?post_type=product&p=15287"},"modified":"2026-10-16T04:52:18","modified_gmt":"2026-10-16T04:52:18","slug":"btl-lever-operated-butterfly-valve-d71x-10","status":"publish","type":"product","link":"https:\/\/anphuthanhvalve.com\/en\/btl-lever-operated-butterfly-valve-d71x-10\/","title":{"rendered":"BTL LEVER-OPERATED BUTTERFLY VALVE | MODEL: D71X-10"},"content":{"rendered":"

The BTL lever-operated butterfly valve, Model D71X-10<\/strong>, is a quick and flexible open\/close solution for small to medium-sized pipelines. Thanks to a locking lever handle that can be set at multiple angles, the operator can easily open and close the flow as desired. With an ultra-thin wafer-type design, the valve saves installation space and significantly reduces the load on the piping system.<\/p>\n

\"The
The BTL lever-operated butterfly valve, Model D71X-10<\/figcaption><\/figure>\n

Construction of the BTL D71X-10 lever-operated butterfly valve<\/h2>\n

The BTL D71X-10 lever-operated butterfly valve uses a lever that acts directly on the stem, so opening and closing are faster, which suits systems that need instant shut-off and opening of the flow.<\/p>\n

The product consists of 6 main parts:<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n
No.<\/th>\nComponent<\/th>\nMaterial<\/th>\nFunction<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nBody<\/td>\nCast iron<\/td>\nThin disc-type valve shell, clamped between two pipeline flanges with through-bolts, containing the cavity for the disc and the stem<\/td>\n<\/tr>\n
2<\/td>\nDisc<\/td>\nDI\/CF8\/CF8M<\/td>\nMain opening\/closing element, rotating 90 degrees about the stem axis to close the flow tightly or open it fully<\/td>\n<\/tr>\n
3<\/td>\nStem<\/td>\nStainless steel<\/td>\nDrive shaft connected directly from the lever to the disc, bearing the entire torque during operation<\/td>\n<\/tr>\n
4<\/td>\nSeat<\/td>\nEPDM\/NBR<\/td>\nSealing ring molded inside the valve body, surrounding the perimeter of the disc and forming the seal when the disc is closed. The material is selected according to the temperature and properties of the fluid<\/td>\n<\/tr>\n
5<\/td>\nSleeve<\/td>\nPolymer<\/td>\nIntermediate bushing between the stem and the valve body, reducing friction during rotation and preventing leakage along the stem<\/td>\n<\/tr>\n
6<\/td>\nLever handle<\/td>\nSteel\/Aluminum\/Cast iron<\/td>\nManual operating mechanism, with an opening angle indicator plate and a locking pin at the closed, open, and intermediate positions<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Dimension table of the BTL D71X-10 lever-operated butterfly valve (DN50 – DN400)<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
DN<\/th>\nL (Body length \u2013 mm)<\/th>\nD0 (Bolt circle diameter \u2013 mm)<\/th>\nZ x \u03a6d (No. of holes \u00d7 hole diameter)<\/th>\n<\/tr>\n<\/thead>\n
50<\/td>\n43<\/td>\n\u03a6125<\/td>\n4 x \u03a619<\/td>\n<\/tr>\n
65<\/td>\n46<\/td>\n\u03a6145<\/td>\n4 x \u03a619<\/td>\n<\/tr>\n
80<\/td>\n46<\/td>\n\u03a6160<\/td>\n4 x \u03a619<\/td>\n<\/tr>\n
100<\/td>\n52<\/td>\n\u03a6180<\/td>\n4 x \u03a619<\/td>\n<\/tr>\n
125<\/td>\n56<\/td>\n\u03a6210<\/td>\n4 x \u03a619<\/td>\n<\/tr>\n
150<\/td>\n56<\/td>\n\u03a6240<\/td>\n4 x \u03a623<\/td>\n<\/tr>\n
200<\/td>\n60<\/td>\n\u03a6295<\/td>\n4 x \u03a623<\/td>\n<\/tr>\n
250<\/td>\n68<\/td>\n\u03a6355<\/td>\n4 x \u03a623<\/td>\n<\/tr>\n
300<\/td>\n78<\/td>\n\u03a6410<\/td>\n4 x \u03a626<\/td>\n<\/tr>\n
350<\/td>\n78<\/td>\n\u03a6400<\/td>\n4 x \u03a626<\/td>\n<\/tr>\n
400<\/td>\n102<\/td>\n\u03a6456<\/td>\n4 x \u03a630<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Advantages and practical applications of the D71X-10 lever-operated butterfly valve<\/h2>\n

Outstanding advantages of the BTL lever-operated butterfly valve<\/h3>\n