
Featured Products
Reliable Weatherproof Limit Switch Box for Industrial Pneumatic Actuators
US$4.00-5.00 / Piece
100 Pieces (MOQ)
US$5.00/ Piece
1 Piece (MOQ)
US$5.00/ Piece
1 Piece (MOQ)
US$4.00-5.00/ Piece
100 Pieces (MOQ)
US$5.00/ Piece
1 Piece (MOQ)
Double-row Products
Lug Style Double Offset Butterfly Valve, ASTM A216 Wcb Body, Gas Service, High Performance
US$5.00 / Piece
1 Piece (MOQ)
Flanged Type Double Eccentric Butterfly Valve for Gas Wcb Body Durable Coating
US$5.00 / Piece
1 Piece (MOQ)
Pneumatic Actuated Wafer Type Double Offset Butterfly Valve- on/off Control Double Eccentric Disc
US$5.00 / Piece
1 Piece (MOQ)
Flanged Type Pneumatic Actuated Double Offset Butterfly Valve - Reliable on/off Control, High Performance
US$5.00 / Piece
1 Piece (MOQ)
Wafer Type Butterfly Valve Double Offset Wcb Carbon Steel NBR Seat Pneumatic Actuator for Chemical Industrial Pipeline ANSI B16.5
US$5.00 / Piece
1 Piece (MOQ)
Double-row Products
Economical Anti Rust Pneumatic Spring Return Actuator for Petrochemical Industry
US$4.00-5.00 / Piece
100 Pieces (MOQ)
Anti Rust Corrosion Resistant Pneumatic Spring Return Actuator for Oil & Gas Pipeline
US$4.00-5.00 / Piece
100 Pieces (MOQ)
Shock Resistant Water Proof Pneumatic Spring Return Actuator for Refinery Equipment
US$4.00-5.00 / Piece
100 Pieces (MOQ)
Reliable Spring-Return Pneumatic Actuator for Fail-Safe Ball and Butterfly Valve Control with ISO 9001 Certified Production (SEN AT75 SR, NAMUR)
US$4.00-5.00 / Piece
100 Pieces (MOQ)
High-Performance Double-Acting Pneumatic Actuator for Ball and Butterfly Valve Automation with ISO 9001 Certified Manufacturing (SEN AT63 DA, ISO 5211)
US$4.00-5.00 / Piece
100 Pieces (MOQ)
Corrosion-Resistant Aluminum-Alloy Pneumatic Actuator for Water Treatment and Chemical Valve Automation with ISO 9001 Certification (SEN AT105 DA/SR)
US$4.00-5.00 / Piece
100 Pieces (MOQ)
Double Acting Pneumatic Actuator with Casting Cylinder and Nickel-Plated Shaft
US$4.00-5.00 / Piece
100 Pieces (MOQ)
Sen Brand Double Acting Pneumatic Actuator with Alloy Steel Output
US$4.00-5.00 / Piece
100 Pieces (MOQ)
Double-row Products
Weatherproof Limit Switch Box for Pneumatic Actuators with CSA (IP67 Weatherproof)
US$4.00-5.00 / Piece
100 Pieces (MOQ)
Reliable Explosion-Proof Valve Position Switch Box for Hazardous Areas
US$4.00-5.00 / Piece
100 Pieces (MOQ)
Weather-Resistant Explosion-Proof Limit Switch Box with Mechanical Action
US$5.00 / Piece
1 Piece (MOQ)
Adjustable Sealed Corrosionresistant Micro Limit Switch for Tower Crane Limit Control Devices
US$10.00-11.00 / Piece
100 Pieces (MOQ)
Advanced Explosion-Proof Valve Position Switch for Remote Signal Transmission in Hazardous Plants with Cnex Certification (Ex-db-IIC-T6-GB, AC250V-16A)
US$28.60-29.00 / Piece
800 Pieces (MOQ)
Reliable Heavy-Duty Explosion-Proof Limit Switch for Chemical and Petrochemical Valve Automation Systems with Cnex Dustproof Certification (SEN-510N)
US$28.60-29.00 / Piece
800 Pieces (MOQ)


About us
SEN valve actuators hold internationally recognized qualifications,including the SIL3 Functional Safety certification issued by TÜV SÜD.
Our manufacturing facility is located at No. 8 Shiqian Road,Shitangwan,Luoshe Town,Huishan District,Wuxi City. The factory covers a total area of 8,000 square meters and is equipped with over 60 processing machines. We have a dedicated team of more than 80 employees,including over 10 mid-to-senior technical experts,with our sales and service network spanning across China.
SEN is committed to the R&D and manufacturing of pneumatic valves,electro-hydraulic valves,and pneumatic valve accessories. We are equipped with advanced,specialized machinery for valve processing,manufacturing,and testing. With an annual production capacity of over 50,000 valve units,our total annual output value reaches 120 million RMB.
We strictly adhere to the ISO 9000 quality management system to ensure scientific management,delivering products that satisfy our customers through superior quality and comprehensive service. Our products are widely used in industries such as lithium batteries,new energy materials,environmental protection equipment,pharmaceuticals,chemicals,and power plants.
Backed by years of industry experience and continuous R&D,SEN has established a robust management system,advanced manufacturing processes,and a comprehensive after-sales service network.
Haikou Shengyanuo International Trade Co.,Ltd. operates on the core philosophy of "surviving through quality and growing through integrity." We are dedicated to building SEN into a premier professional brand in the control valve industry!
COMPANY PROFILE
Our company offers variety of products which can meet your multifarious demands. We adhere to the management principles of "quality first, customer first and credit-based" since the establishment of the company and always do our best to satisfy potential needs of our customers. Our company is sincerely willing to cooperate with enterprises from all over the world in order to realize a win-win situation since the trend of economic globalization has developed with anirresistible force.
Authentication
Business Type:
Trading Company
Main Products:
Pneumatic Actuator
,
Pneumatic Valve
,
Valve
,
Ball Valve
,
Butterfly Valve
Year of Establishment:
2026-05-11
Address:
Room 1807, Unit A, Building 5, Plot A1001, Yajule Golden Bay Health Education New Town Project, No. 3 Jinsha Bay Road, Xixiu Town, Xiuying District, Haikou City
Solutions
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