Anti Static Device In Gate Valve

Api 6d 2014 5 23 anti static device stipulates as follows.

Anti static device in gate valve.

In api 6d 2014 page 23 5 23 anti static device states. An insert 19 screwthreadably mounted in the body 10 retains the valve ball 14 and seat rings 18 in their operating positions. Application of anti static device in valves. Soft seated ball valve plug valve and gate valve shall have an anti static device.

Anti static device jv090006 stainless steel fire safe ball valve iso 5211 direct mount a high performance fire safe stainless steel bodied full bore ball valve suitable for various heavy duty applications with an iso 5211 mounting pad enabling the valve to be fitted with various actuation options. China anti static device ball valve manufacturer. The seat steam and body joint of ball valve are with fire safe design. The test of the device shall be carried out in accordance with section.

Soft seated ball valves plug valves and gate valves shall have anti static devices api 6d 2014 only stipulates that soft seat shall have anti static device but does not require metal to metal seat to have anti static device. To avoid static sparkle an antistatic device is designed on the valve to reduce or derive the static charge from the ball. Anti static devices 20 are provided between the stem 15 and valve ball 14 and between the stem 15 and body 10. Fig 2 fire safe design.

The valve ball 14 is sealed to the body 10 by suitable seat rings 18. When open and close the valve the friction between the ball and the non metal seat will produce static charges.