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3 Steps To Installing Your New Actuator Of Valve

How do I install my new actuator of valve? This article will show you the Actuator Of Valve Installation Instructions.
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    The actuator of the valve is an important component of the valve system. It controls the opening and closing or modulating of the valve. 

    Before you install your new actuator of valve, you should notice four points. 

    1. You need to completely shut the process down or use a bypass valve to get the valve out of the process pressure. The ends of the valve have fluid drained from them.

    2. Air power, electric power, or any control signal should be disconnected from the operating lines to the actuator of valve.

    3. If there is a sudden release of process fluid pressure, avoid personal injury or damage to the processing system. 

    4. During the maintenance of valve trim, packing, seat, or other inner parts, all the gasket or sealing should be replaced after reassembly, this is necessary to ensure the valve has good sealing and avoid any leakage.

    Depending on the pressures, temperatures, pressure drops, and fluid conditions, valve configurations and materials of construction are selected. Contact the THINKTANK if you want to apply additional conditions that aren’t approved because they are limited in pressure, temperature, and pressure drop ranges. Now let’s step by step install a new actuator of valve. 

    Step 1. Remove the old actuator from the valve

    step 1 remove old actuator
    step 1 remove old actuator
    • The actuator should be put in the mid-lift position and secured by air or hand wheel.
    • Unscrew the bolts from the coupling (part 15) and remove the two halves of the stem coupling.
    • The gland nut(part 10) should be loosened to allow valve stem to slide free through the valve bonnet. 
    • Remove the air connection from the actuator of valve.
    • The slotted nut (part 14) should be unscrewed.
    • Be careful during lifting the actuator assembly over the stem from the valve, and avoid any damage to the valve or actuator parts. 
    double diaphragm actuator
    diaphragm actuator 1

    Diaphragm Pneumatic Actuator of Valve Manufacturer

    Step 2. Install the new actuator of valve

    • The valve bonnet should be lowered over the actuator of valve and the slotted nut should sit squarely on the shoulder.
    • The actuator should be rearranged to the correct position. The travel indicator plate should be on the front of the vehicle.
    • The valve bonnet threads need to be tightened after the slotted nut is screwed onto them. It is recommended that you apply molykote to the threads.
    • Slowly regulate the supply of air to 1 bar above the valve’s beginning range.
    • Install the connector between the valve stem and actuator stem, and match the threads of the connector with the threads of the stem. 
    • Lift the stem of the actuator by applying a little air power to the actuator, and raising it by a maximum of one pitch if they are not aligned.
    • The 13mm nut and 6mm head should be tightened if they are aligned.
    • Supply max. air power to pneumatic diaphragm actuator, until the travel indicator reaches 100% full opening of valve, release air power and check the valve travel again.  

    Step 3. Test it

    Once you have installed your new actuator of valve, test it to make sure everything works as expected. If not, contact us at 86-185 1656 9221(WhatsApp) so we can help you fix any issues.

    Picture of Will Don

    Will Don

    After earning my bachelor's degree in mechanical engineering from Zhejiang Normal University in 2008, l was fortunate enough to begin my career with Siemens, Fisher, and YTC, focusing on control valve accessories. Over the past dozen years, l've poured my heart and energy into understanding technology and fluid solutions for control valves.
    Now, as the marketing director for THINKTANK, a trusted branch of the Taiwan STONE valve group, I can't help butf eel proud of how far we've come. Our knowledge isn't just reaching professionals like engineer and valve distributors; it's also inspiring the next generation of automation college students.
    l genuinely hope you're enjoying our articles and finding them helpful.Your thoughts, questions, and feedback mean the world to me, so please don't hesitate to reach out to marketing[at] Whether you're a seasoned expert or just curious about the field, I'm here to connect, share, and learn together.

    All Posts »

    I am the author of this article, and also the CEO and marketing director of THINKTANK, with 15 years of experience in the industrial valve industry. If you have any questions, you can contact me at any time.

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    With expertise in valves and rich experience in the oil&gas, chemical industry, textile mills, power plants, and sugar mills. THINKTANK has become the premier manufacturer of next-generation precision control valves.

    With a customer base that includes over 42 of the world’s leading engineering&contractors and international valve brands, THINKTANK Valves offers cost-effective valves that help our customers achieve automated process control without paying high prices.

    Why are more and more international valve brands choosing THINKTANK for OEM service?

    Brand is reputation, which not only requires high valve technology, but also great comercial support and fast response after-sales service and delivery time. They will not gamble their brand on an unknown product

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