STONE is a Taiwan company with more than 30 years of experience in valve manufacturing and is a leading valve manufacturer in Taiwan’s textile, dyeing & finishing machinery industry. STONE mainly engaged in ball valves, butterfly valves, aluminum actuators, cast iron actuators, control valves, angle seat valves, and other industrial valves. For more information about electric actuators, you can read this article.
Before Using a double-acting actuator, we need to determine the torque of the valve, if works for steam/vapor or non-lubricated medium, please add a 25% safety factor. If works for non-lubricated dry air medium, please add a 60% safety factor. If works for non-bribery with gas transport granular medium add 100% safety factor. And for a clean, frictionless lubricated medium just add a 20% safety factor, then according to the air source pressure, find the double-acting torque table, and you can get the right ST model. For example the air supply is only 5 bar, ball valve torque requests 180N.m, the medium is non-lubricated steam, taking into account the safety factor, add 25% equals 225N.m, first look up the air supply 5 bar according to the table, then look up the torque data equal or similar along the vertical, select 247 to 319N.m, then look up the model number along the line to the left, select model ST-125 pneumatic actuator is perfect.
STONE 1000WOG ball valves are generally supplied to machinery and equipment manufacturers. The low torque, heavy-duty material, and stable working performance keep the equipment working and save a lot of unnecessary after-sales service for the equipment manufacturers. In Taiwan, 80% of the dyeing and finishing machinery and equipment use the STONE valve brand, for over 30 years, STONE has become a well-known brand of machinery and equipment in Southeast Asia, and we have maintained continuous win-win cooperation with the dyeing and finishing machinery manufacturers.
Our VT control valves are particularly suitable for steam service with stable regulation performance. We have rich experience in textile mills, dyeing and finishing machinery, acrylic industry, paper mills, power stations, chemical plants, and other industries.
The steam proportional control valves are widely used in Vietnam, Thailand, Indonesia, Singapore, Malaysia, and other countries. If you are a distributor or want to become a STONE agent, please feel free to consult with us about the partnership.
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