Stainless steel floating ball valve

Technical Specifications

Product model: Q41F 
Nominal diameter: DN15 - 500mm 
Nominal pressure: PN1.6 - 10.0 MPa 
Working temperature: -29 to 150 degrees Celsius 
Main materials: CF8, 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, API6D, API598

Sales Hotline:

0086-21-59110018

Product Details

Product Overview

The stainless steel floating ball valve has a 90-degree rotation action. The plug body is a sphere, with a circular hole or passage passing through its axis. The stainless steel ball valve is mainly used in pipelines for cutting off, distributing, and changing the flow direction of the medium. It only requires a 90-degree rotation operation and a very small torque to close tightly. The stainless steel floating ball valve is most suitable for use as a control and shut-off valve. The stainless steel flange ball valve is made of high molecular polymer materials such as polytetrafluoroethylene and oriented polyphenylene, with good sealing performance, but the material is relatively soft. Due to the softness of the material, in order to achieve a certain sealing pressure ratio, the opening and closing torque will inevitably increase. Stainless steel valves are suitable for various media such as water, steam, oil, nitric acid, acetic acid, oxidizing media, urea, etc.


Main component materials

Serial Number
Part Name Material
GB ASTM
1 Body CF8 A2116-WCB
2 Sealing ring PTFE PTFE
3 Ball 1C18Ni9Ti SS304
4 Nut 35 A194-2H
5 Bolt 35CrMoA A193-B7
6 Stone body WCB A216-WCB
7 Gasket

Flexible graphite + stainless steel

B12.10-304F/.G
8 Packing PTFE PTFE
9 Filling cap WCB A2116-WCB
10 Positioning plate 25 A105
11 Gasket ring 65Mn AISI 1066
12 Handle K33 A47-667
Gr.32510
13 Stem 1Cr33 A276-410
14 Screw 35 A193-B7
15 Thrust gasket PTFE PTFE


Main technical specifications

Design basis National Standard Series American Standard series
Design standards GB/T12237 API6D ANSI B16.34
Length of the flange connection structure GB/T12221 API6D ANSI B16.10
Structural length (welding) GB/T15188.1 API6D ANSI B16.10
Connecting flange GB/T9113
JB/T79
HG20592
ANSI B16.5、B16.47
Butt weld end GB/T12224 ANSI B16.25
Testing and inspection GB/T9092 API6D API598


不锈钢浮动球阀(图1)


Main dimensions of the shape

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