HES · 华尔士 / Certifications
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Pneumatic actuation and fluid control.
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第1张：Certifications
About HES
Focused on fluid control
Care at every step
Zhejiang Huaershi Auto-control Instrument Valve Co., Ltd. specializes in the development and manufacture of pneumatic actuators, actuated control valves and control accessories.
Explore our company →Manufacturing & quality
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Industry Applications
Connecting industrial applications
Company updates
Latest from HES
Advantages of Pneumatic Actuators in Industrial Automation
Read more →
Pneumatic Actuator Application and Selection in New Energy
Read more →
Blue Skies and White Clouds — Autumn Outing with Huaershi!
Read more →
Technical documents
Product drawings
Find dimensional drawings by product series and folder, then preview or download them.
Find product drawings37+
Years of industry experience
8+
International certifications
100+
Models & Specifications
20+
Patented Technologies
Product center
Automated Fluid-Control Solutions
Pneumatic actuators, control valves and accessories for reliable industrial automation.
Pneumatic Actuator Range
Rack & pinion & scotch-yoke, 8–10,000Nm torque. Single/double-acting, cryogenic, explosion-proof customisable.
View all actuator series →
Pneumatic Industrial Control Valves
Flanged/wafer ball, soft/metal-seated butterfly & precision control valves. Precision assembled, zero-leak air-tight test.
View all pneumatic valves →
Pneumatic Control Accessories
NAMUR accessories: solenoids, positioners, limit switches. One-stop fluid control solutions.
View all control accessories →Industry solutions
Industrial & Advanced Manufacturing Solutions
HES pneumatic assemblies deliver reliable performance in harsh working conditions over 30+ years.
Oil and Gas
Oil & gas gathering, emergency shut-off for diverse conditions.
Explore the solution →Oil and Gas
Power and Energy
Valve control for power networks, resistant to high-temperature steam.
Explore the solution →Power and Energy
Water treatment
Water & wastewater, corrosion resistant & anti-jamming.
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Metallurgy & steel
Steel mill service, dust resistance and frequent cycling.
Explore the solution →Metallurgy & steel
Biopharmaceuticals
Sanitary piping compliant with CIP/SIP hygiene standards.
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Chemical Industry
Acid & solvent transfer for corrosive media.
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Lithium Batteries and New Energy
Lithium process piping with copper/zinc-free options.
Explore the solution →Lithium Batteries and New Energy
Customization for Severe Service
Custom assemblies for cryogenic, high-temp and corrosive service.
Explore the solution →Customization for Severe ServiceAbout HES
Focused on fluid control. Built for industrial quality.
HES is based in Binhai Industrial Park,Wenzhou. Our 37-year expertise delivers pneumatic actuators, control valves and accessories to global industries.
1989Began R&D and manufacturing of pneumatic actuators
1997Wenzhou HES Pneumatic Valve Manufacturing Co., Ltd. founded
2005Renamed Zhejiang HES; launched precision CNC workshop
2012National High-Tech Enterprise, CE & SIL3 certified
Certified credentials
International certifications & patents
Strict quality control & independent IP guarantee HES product reliability and industrial safety.
Management System & Product Certifications
View all certifications
ISO 9001 Quality Management Certification
CE Certification (EU Safety Directives)
SIL3 Functional Safety Certification
National Invention & Utility Model Patents
View all patents
Invention Patent – Fast-response Pneumatic Actuator
Utility Model – Rack & Pinion Seal Structure
Utility Model – Clutch-type Self-holding Manual Mechanism
News & Insights
Company news
Explore industry insights, company news and events from HES.
2026-10-09
Advantages of Pneumatic Actuators in Industrial Automation
Introduction Pneumatic actuators are generally used in combination with valves, and because of their features and advantages they hold an important position in the field of industrial automation. They are both the executor of "opening and closing" and "regulating" on the pipeline,…
Read more →2026-10-07
Pneumatic Actuator Application and Selection in New Energy
Introduction In recent years, with the global transformation of the energy mix, new energies such as hydrogen energy and LNG (liquefied natural gas) have continued to expand in transport, energy storage and industry. This brings higher requirements for safety, automation level and…
Read more →2019-10-23
Blue Skies and White Clouds — Autumn Outing with Huaershi!
The setting was relaxed and comfortable. The restaurant had already laid out the tables, with ingredients and grills ready beside each one. Everyone took their seats and got ready to barbecue. So that each of us could experience the activity first-hand, every…
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International engineering projects & global partnership and company updates.
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HES Official Douyin
Digital machining, automated assembly and product testing.
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WeChat Channels
Pneumatic actuator and valve selection & commissioning guides.
Open WeChat to scanReady to upgrade your automated fluid-control system?
Standard or custom solutions for harsh conditions. HES technical team supports your project.