Cast steel ball valve

Technical Specifications

Product model: Q41F 
Nominal diameter: DN15 - 500mm 
Nominal pressure: PN1.6 - 10.0 MPa 
Working temperature: -196 to 150℃ 
Main materials: WCB, A216-WCB 
Design standards: GB/T 12237, API 6D, ASME B16.34 
Connection flange: GB/T 9113, JB/T79, Hg20592, ANSI B16.5, B16.47 
Testing and inspection: GB/T9092, AP16D, AP1598

Sales Hotline:

0086-21-59110018

Product Details

Product Overview

Floating ball valves are an important type of valve and are widely used in fields such as petrochemicals and long-distance pipelines. The closing element of a floating ball valve is a spherical body with holes (or a part of a sphere). The spherical body rotates with the valve stem to achieve the opening or closing of the valve. 
Among various valves, the flow resistance of ball valves is the lowest. When the full-diameter ball valve is opened, the ball body passage, the valve body passage, and the connecting pipe diameter are all equal and form a single diameter. The medium can flow through almost without any loss. 
The floating ball valve can be fully closed or opened by rotating 90°. It operates quickly. Compared with gate valves and globe valves of the same specifications, the ball valve is smaller in size and lighter in weight, making it easier for pipeline installation.


Main external connection dimensions

DN 15 20 25 40 50 65 80 100 125 150 200
d1 13 19 25 38 64 64 76 102 127 152 203
L 108 117 127 165 191 191 203 229 356 394 457
H 59 63 75 95 142 142 152 178 252 272 342
W 130 130 160 230 400 400 400 650 1050 1050 1410
Wt(kg) 2.5 3 5 7 15 19 19 33 58 93 160