Emily Finch

2025

Butterfly Valve Bolt Chart

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January 23, 2025

Butterfly Valve Bolt Chart – Bolt lengths may vary due to manufacturing tolerances in valves,. Studs & bolts for mounting butterfly valves 2” to 24” between ansi class 125/150 flanges. Cap screws must be short.

Lug valve & cap screws. Bf series wafer / lug butterfly valves being tested at an independent. Dimensions provided for flange bolting are intended only as a guide. Follow the advice on flange bolts in section d5 !

Butterfly Valve Bolt Chart

Dn 50 to 600 (nps 2 to 24) wafer and lug styles pressure rating: Bolting and hex nuts are unified coarse thread series (unc) class 2a (bolts) and class 2b (hex nuts) per asme b1.1 20 inch and 24 inch lug valves have 4 blind tapped holes. Series z, f, m, t, tw, be.

Since inside flange diameters vary depending on the type. Cap screws machine bolts stud bolts. Ductile iron body • extended neck • geometric drive.

Improper bolt and stud lengths could result in leakage at the flange resulting in damage,. Zspec resilient seated butterfly valves are designed to fit between ansi b16.5 class 150 flanges without flange gaskets. The wafer butterfly valve bolt chart serves as a critical guide for users to select the appropriate bolts during the installation and maintenance of a wafer butterfly valve.

Type a11 high performance butterfly valves are available in either a flangeless wafer or a single flange design, with a variety of seal, valve body, and internal components. Z011 z014 f012 t211 t214. 60 ksi minimum • elongation:

Pn16 Lug Type Butterfly Valve