Skip to content Looking for reliable and efficient valve automation solutions at competitive prices? At KST, we provide one-stop actuator systems designed to meet the demanding needs of industrial operations worldwide.
Electric, Pneumatic, Intelligent & Explosion-proof Actuators for all valve types.
Quarter-turn & Multi-turn Solutions for precise on/off and modulating control.
Engineered for Harsh Environments with IP67/68 protection and corrosion resistance.
Compliant with Global Standards to ensure safety, reliability, and long service life.
Trusted Across Industries including oil & gas, water treatment, power, chemical, and food & beverage.
OEM & ODM Support with technical guidance from experienced engineers.
👉 Get Your Free Custom Solution Quote & Expert Advice Today!
30+
Years of
Leadership
80000m²+ Advanced Manufacturing Hub
$
42
Million
Annual sales show steady growth
60+
Countries Served Worldwide
3600+
Successful Project Deliveries
50+
Free Lifetime Technical Support
KST is a leading manufacturer of control valve actuators and automation accessories.
Our actuators cover:
Electric & Pneumatic Actuators – precise, efficient, and durable
Intelligent Valve Actuators & Explosion-proof Actuators – for advanced and hazardous applications
Ball, Butterfly & Gate Valve Actuators – for on/off and modulating control
Actuator Accessories & Custom Automation – tailored to your project
Customization Options:
Switch types/indicator covers/Torque/ logo/color/stroke/temperature/explosion-proof , and IP waterproof rating etc. — all can be customized for your needs.
💡 Get Your Bonus:
Send us your inquiry today and receive our Valve & Actuator Application Guide (product selection, automation integration, cost-saving strategies, case studies).
KST specializes in the design and manufacture of high-quality valves and actuators, providing reliable power and control solutions for global industrial automation. We offer electric and pneumatic actuators, various industrial valves (ball valves, butterfly valves, control valves, sanitary valves, etc.), and supporting accessories for a wide range of applications in the energy, chemical, water treatment, pharmaceutical, food and beverage, and other industries.
Intelligent and reliable electric actuators in quarter-turn and multi-turn types, with on/off or modulating control options, wide torque range, and compatibility with ball valves, butterfly valves, and dampers—ideal for power plants, HVAC, and automated production lines.
High-performance pneumatic actuators in aluminium or stainless steel, available in Double Acting (DA) or Spring Return (SR), delivering compact design, high torque, long service life, and optional manual override—ideal for industrial process control, water treatment, and chemical plants.
Comprehensive actuator accessories including limit switches, solenoid valves, positioners, and air filter regulators, with ATEX-certified options for hazardous areas—ensuring precise control, safety, and reliability for all automation projects.
With over 25 years of actuator ODM experience, KST has cooperated with 200+ valve application industries.
Our 2 overseas factories and 15+ warehouses worldwide ensure faster lead times and lower shipping costs.
Supported by 9+ global offices, we provide local technical support and quick response.
Every actuator is 100% inspected with pictures recorded, guaranteeing consistent quality and worry-free installation.
KST Quality
Market Quality
Strength precision steel gears
Quenching process, Stable, long life
Strength precision steel gears
Quenching process, Stable, long life
Powder Alloy Gears
Noisy, brittle, short life
Powder Alloy Gears
Noisy, brittle, short life
Thickened Copper Coils
Thickened copper windings, Uniform current, Stable boost
Thickened Copper Coils
Thickened copper windings, Uniform current, Stable boost
Substandard aluminium coils
Poor waterproofing, easy weathering, signal interference
Substandard aluminium coils
Poor waterproofing, easy weathering, signal interference
Low-quality motors
Hot, weak, wastes power
Low-quality motors
Hot, weak, wastes power
Omron Micro Switch
Precise shutoff, reliable quality, long life.
Omron Micro Switch
Precise shutoff, reliable quality, long life.
Cheap Micro Switch
Fails often, may burn motor
Cheap Micro Switch
Fails often, may burn motor
304 SS cable gland
Waterproof, no signal mix
304 SS cable gland
Waterproof, no signal mix
Plastic Gland
Poor seal, easy aging
Plastic Gland
Poor seal, easy aging
• Technical Support: We help you choose the right valve models based on your working conditions (temperature, medium) and budget.
• Market Advice: Our team provides insights on popular products and sales strategies tailored to your market.
• Fast Quotes: Get a customized quotation within 24 hours.
• Quality Assurance: Every product is inspected per international standards (API598, API6D). Photos and data are recorded and stored for 10+ years.
• Warranty: 12 months from shipment or 18 months from installation.
• Quick Response: We start addressing complaints within 8 working hours and resolve issues within 24 hours. Emergency cases get a response within 4 hours.
• Live Support: Our engineers provide real-time guidance via video call when needed.
15 overseas warehouses across Asia, Europe, and the Americas：
•Sufficient local stock for mainstream project demands
•Immediate delivery from local warehouses, minimizing international shipping delays
•Local dispatch saves on logistics costs, avoids expensive air freight and customs delays
•Skilled local technicians available for assembly and commissioning on-Site
•Local spare parts replacement and quick inspect & repair service
• Quality Control: We test all raw materials (spectrometer checks, visual inspections) to ensure top quality.
• Precision Manufacturing: Our advanced CNC equipment guarantees accurate and reliable products.
• On-Time Delivery: We deliver on schedule, with a late shipment rate of less than 2% per year.
We partner with distributors, brands, contractors, importers, and manufacturers worldwide. Our valves are trusted in major projects for their reliability and adaptability.
With 800+ partners across the U.S., Europe, Asia, and Latin America, we deliver consistent quality and on-time support.
We make it easy to grow your business with proven products and dependable supply.
Want to become a local partner? Let’s talk.
What problem do I need the valve/actuator to solve? (e.g., flow control, shutoff, regulation, etc.)
Are there any mandatory certification requirements for the project or industry? (For example, the petrochemical, water, and food industries have different standards.)
Valve diameter, pressure rating, media type (corrosive, particulate, etc.), and temperature range.
Actuator power type (electric, pneumatic, hydraulic), control method (on/off, regulating, intelligent control).
Special requirements such as protection level and explosion-proof requirements.
Do you possess successful project experience in similar cases ? What is the quality and reliability of your products?
Yes, actuators are widely used in petrochemicals, water treatment, power generation, and other fields with extensive cases. Products meet ISO, CE, EX certifications, undergo strict testing, and offer high stability
Can you provide customised solutions?
Yes, we support customization based on valve interface dimensions, control modes, and explosion-proof requirements
Can you provide timely technical support and reliable after-sales service?
Yes, we offer 24/7 online technical support, resolving common issues within 2–4 hours
Do you provide on-site technical support or troubleshooting capabilities?
Yes. We provide free selection guidance, 24/7 after-sales hotline, on-site response within 24–72 hours (location-dependent), and rapid replacement of common spare parts to minimize downtime
What is the production lead time? What is the delivery capability?
Standard products: 7–15 working days.
Customized products: 30–45 days (from confirmed technical solution and payment)
Yes, quotations detail all payment items, and delivery dates are clearly stated in contracts.
Warranty period: Respond within 2 working days after fault notification. Factory repairs resolved in 7–10 working days.
Electric actuators rely on electricity for power, offer high control precision, and are suitable for complex control scenarios. Pneumatic actuators rely on air, offer fast actuation speeds, and are more suitable for explosion-proof environments. The choice should be based on a comprehensive consideration of site conditions, control requirements, and cost budget.
Key parameters include torque/thrust, operating speed, port size, and control method (on/off/modulating). Ensure that the actuator’s output capacity matches the valve’s operating requirements.
IP ratings refer to the dust and water resistance of electrical equipment. Common ratings include IP65 (dust and water jet protection), IP67 (temporary immersion protection), and IP68 (continuous immersion protection). A higher rating should be selected for outdoor or humid environments.
Service life depends on operating frequency, media properties, installation environment, and maintenance. The design life of general industrial valves is over 10 years, and regular maintenance can significantly extend their service life.
We provide detailed installation guidance documents and video support. Our products typically come with a 1-2 year warranty, and we offer lifetime repair and technical support.
Our products comply with international standards such as ISO, API, ANSI, and CE, and offer specific industry certifications such as SIL, Fire Safe, and ATEX.
Visit KST Factory: See Quality, Build Trust
🏭 Full-Process Tour
See precision machining, assembly, and testing—witness how each actuator is born.
🔍 Quality Validation
Observe or guide tests: sealing, torque accuracy, IP67/IP68 protection. Transparency guaranteed.
📦 Packaging & Logistics
Watch shockproof/moisture-proof packaging + reinforced wooden crating for safe delivery.
🤝 Technical Exchange
Our engineers provide on-site support for selection, customization, and solutions.
Submit your visit request—we’ll contact you within 24h to plan your custom tour.
Email: elle@kst-en.com
Phone/WeChat: +86 18588475571
Please message us for your inquiry or customization requirements, and we will reply to you in 1 workday.🙂
Contact us for product inquiries, technical support, or feedback. Please describe your requirements so our team can assist you.
