Lug Type Butterfly Valve Catalogue Supplier: Is Series F101 the Right Fit?

Start with the line size and flange standard

Series F101 covers 1½″, 2″, 2½″, 3″, 4″, 5″, 6″, 8″, 10″, 12″, 14″, 16″, 18″, 20″, 24″, 28″ and larger sizes up to 48″. Match the nominal valve size to the line size first, then check the flange drilling required by the project.

We make the valve compatible with GB, ANSI, DIN, BS and JIS flanges. The dimension table includes ANSI 125/150, PN10, PN16 and 10K connection patterns. This matters when a distributor is replacing valves across projects that use different regional piping practices. A Series F101 selection for an ANSI 125/150 line should not be treated as interchangeable with a PN16 or JIS 10K arrangement without checking the corresponding drilling and flange dimensions.

The A and B dimensions are listed by nominal valve size. For example, the 4-inch model has a 114 mm A dimension and 200 mm B dimension, while the 12-inch model has 242 mm A and 337 mm B dimensions. The flange dimensions, bolt quantities and bolt details vary with the selected connection pattern. Use the exact size and flange-class row when checking a replacement envelope or a new spool drawing.

Choose the body style for the installation

Series F101 is available in wafer, lug and U-section wafer body styles. Select the lug type when the project specification calls for a lug body and its corresponding bolting arrangement. The body choice should appear on the purchase order because the three configurations are not the same installation detail.

Picture a replacement in an existing pump-room line: the nominal size may match the old valve, but the flange class, bolt pattern and face-to-face space still determine whether the replacement fits. Send the line size, flange standard and available installation length with your inquiry so we can match the correct table entry.

Select the operating method around the valve size

The operating range differs by method. Handles are available from 1½″ to 12″. Manual gear operators cover 1½″ to 48″, as do electric and pneumatic actuators.

This gives you two practical purchasing paths. For a small valve that will be adjusted locally, a handle may suit the specified size range. For a larger valve, or for a line that must connect with an automated control system, choose a manual gear, electric or pneumatic arrangement within the full 1½″ to 48″ range. We need the valve size and the intended operating method before preparing the configuration.

A second working situation is a larger process line where the valve is installed away from the operator's normal position. The Series F101 range allows the specification to move from a manual gear operator to an electric or pneumatic actuator while keeping the valve family within the same size span. The actuator type still needs to match the control design and order specification.

Use the pressure and standard information correctly

The Series F101 product range is designed to comply with MSS SP-67, BS5155 and API 609. Its listed connection classes are ANSI 125/150, PN10, PN16 and 10K. These are selection references for the piping package, not a reason to choose a valve before the project class is known.

For a procurement schedule, record four items together: the nominal size, the body style, the flange standard and the pressure class. A fifth item, the operating method, completes the basic configuration. This format helps prevent a broad catalog request from becoming an ambiguous valve order.

The 1½-inch entry, for example, is shown with different flange dimensions for ANSI 125/150, PN10, PN16 and 10K. The 8-inch and 12-inch entries also use different bolt quantities and dimensions across the listed patterns. Check the exact row instead of using a single flange dimension for every connection class.

What Series F101 suits, and where to be careful

Series F101 suits distributors and project teams that need one butterfly valve family spanning small and large nominal sizes, multiple international flange systems and several operating methods. It is also a practical candidate for projects where wafer, lug and U-section wafer body choices must be considered within one product line.

Its useful boundaries are clear. A handle selection stops at 12 inches, while gear, electric and pneumatic options extend to 48 inches. The valve must also be matched to one of the listed flange standards and pressure classes. If the piping drawing uses another connection arrangement, send the drawing for a fit review before ordering.

Questions to settle before the purchase order

Send the piping details with your inquiry

Choose Series F101 when your project needs a lug type butterfly valve within the 1½″ to 48″ range and can be matched to the listed flange standards and operating options. Send the valve size, lug body requirement, flange class, pressure class, operator type and installation dimensions to NINGJIN COUNTY HONGDA VALVE CO.,LTD. for a configuration review.