About Wenzhou Sudhana Fluid Company Limited - Industrial Valves & Gauges Supplier in China

Wenzhou Sudhana Fluid Company Limited is based in China and currently lists 12 distinct products. The catalogue focuses on industrial valves and electronic actuators, aligning with its top categories of Industrial Valves & Gauges and Electronic Actuators. The valve offerings include electric three‑piece ball valve, electric high platform ball valve, explosion‑proof electric ball valve, pneumatic three‑way ball valve, pneumatic regulating ball valve, pneumatic sanitary ball valve, double‑acting UPVC pneumatic butterfly valve, food‑grade industrial sanitary butterfly valve, pneumatic actuated flange ball valve, and a combined electric/pneumatic ball and butterfly valve. The actuator lineup comprises a JAT type pneumatic actuator (HS code 8481.80, aluminum‑alloy piston with 304 stainless steel bolts) and an install‑return‑receipt spring pneumatic actuator. Product families fall under HS chapter 84 (machinery) and chapter 85 (electrical machinery) which are standard classifications for valve and actuator equipment. The supplier’s catalogue thus covers both electrically driven and pneumatic‑operated valve solutions for process, water‑treatment and food‑grade applications.

Typical industrial ball valves in this segment are offered in ANSI B16.34 class 150‑600 pressure ratings, with body materials ranging from cast iron to stainless steel (e.g., 304/316). Explosion‑proof electric ball valves are commonly designed to ATEX Zone 1/2 standards and are rated for IP66 protection. Pneumatic butterfly valves for sanitary use often meet FDA 21 CFR Part 177 and are supplied with sanitary‑grade PTFE seals. Actuators such as the JAT type are usually specified with a stroke force up to 5 kN and operate at 0.6 - 0.8 MPa pneumatic pressure. The listed materials of aluminum‑alloy pistons and 304 stainless steel bolts align with corrosion‑resistant requirements for fluid handling. Buyers can expect standard packaging in wooden crates or 20‑ft and 40‑ft containers with individual units protected by moisture‑resistant film.

Product Range and Specialties of Wenzhou Sudhana Fluid Company Limited

The catalogue lists electric three‑piece and high‑platform ball valves that are typically supplied in nominal diameters DN15 to DN200, with IEC 60947‑1 compliant motor drives and IP66 enclosures. Explosion‑proof variants follow IECEx and ATEX directives, using stainless‑steel bodies and sealed motor housings to prevent ignition in hazardous zones. Pneumatic valve models - three‑way, regulating, sanitary and butterfly types - are generally designed for 0.6 - 1.0 MPa operating pressure, with body constructions of cast iron, carbon steel or UPVC, and seals of EPDM or PTFE for sanitary compliance. The double‑acting UPVC pneumatic butterfly valve adds chemical resistance for acidic or alkaline media, while the food‑grade sanitary butterfly valve adheres to ISO 22000 hygiene standards. The actuator range includes the JAT type pneumatic actuator, which uses an aluminum‑alloy piston and 304 stainless steel bolts, delivering precise positioning for valve stems, and a spring‑return pneumatic actuator that provides fail‑safe closure. Industry norms for these actuators specify stroke lengths up to 250 mm, torque outputs up to 150 Nm, and compliance with ISO 5211 mounting standards.

Trade and Export Information - Wenzhou Sudhana Fluid Company Limited

China remains one of the world’s largest exporters of industrial valves and pneumatic/electric actuators, with shipments frequently destined for Southeast Asia, the Middle East, Europe and North America. HS code 8481.80, as listed for the JAT type actuator, falls under the broader 8481 category for “Centrifuges, filters, sieves, air‑or fluid‑pressure regulators and similar devices,” which customs authorities commonly associate with valve and actuator equipment. Importers typically require CE marking for electrical components, ATEX certification for explosion‑proof units, and ISO 9001 quality‑management documentation from Chinese manufacturers. Standard export packaging involves wooden pallets, moisture‑proof film, and bulk loading into 20‑ft or 40‑ft containers; Incoterms such as FOB Shenzhen or CIF Shanghai are frequently used. Chinese export regulations mandate a commodity inspection for pressure‑rated valves, and many buyers request a pre‑shipment factory audit or third‑party inspection report to verify compliance with pressure‑class and material‑grade specifications.

Sourcing from Wenzhou Sudhana Fluid Company Limited - Buyer Guidance

When evaluating Wenzhou Sudhana Fluid Company Limited’s valve and actuator offerings, buyers should request the latest CE or ATEX certificates for electric and explosion‑proof models, as well as material test reports confirming stainless‑steel grade (304 or 316) or UPVC composition. For pneumatic valves, a hydrostatic pressure test report (typically at 1.5× rated pressure) and a sanitary compliance statement (e.g., FDA 21 CFR Part 177) are standard verification documents. Actuator buyers often ask for a performance curve showing torque versus pneumatic pressure, as well as a wiring diagram for electric variants and a pneumatic schematic for spring‑return units. Verify the HS code (e.g., 8481.80 for the JAT actuator) on the commercial invoice to ensure correct tariff treatment, and confirm packaging details such as crate dimensions and moisture barrier film thickness. Prior to placing a large order, obtain a sample unit to assess fit‑up, seal integrity and control interface, and clarify the minimum order quantity, which for custom‑size valves typically ranges from 50 to 200 pieces depending on diameter and material.

What valve types are listed in the catalogue?

The catalogue includes electric three‑piece ball valve, electric high‑platform ball valve, explosion‑proof electric ball valve, pneumatic three‑way ball valve, pneumatic regulating ball valve, pneumatic sanitary ball valve, double‑acting UPVC pneumatic butterfly valve, food‑grade sanitary butterfly valve, pneumatic actuated flange ball valve and a combined electric/pneumatic ball and butterfly valve.

Which product has an HS code listed?

The JAT Type Pneumatic Actuator is the only item with an HS code provided; it is listed as 8481.80, which falls under the machinery and mechanical appliances chapter.

What materials are used in the JAT Type Pneumatic Actuator?

The actuator uses an aluminum‑alloy piston and 304 stainless‑steel bolts, offering corrosion resistance and high strength for pneumatic operation.

What certifications are typically required for the explosion‑proof electric ball valve?

Buyers usually request ATEX Zone 1/2 certification and IECEx approval, together with CE marking and an IP66 ingress‑protection rating to verify suitability for hazardous environments.

What are common pressure ratings for the pneumatic valves?

Pneumatic valves in this segment are commonly rated for 0.6 MPa to 1.0 MPa operating pressure, with hydrostatic test pressures applied at 1.5 times the rated value during factory testing.

What is the typical minimum order quantity (MOQ) for custom‑size valves?

MOQ for custom‑diameter valves generally starts at 50 pieces for DN15‑DN50 sizes and may increase to 200 pieces for larger DN100‑DN200 units, depending on material and machining requirements.

What packaging and shipping formats are used for these products?

Products are packed in wooden crates with moisture‑resistant film, loaded into standard 20‑ft or 40‑ft containers; export terms often follow FOB Shenzhen or CIF Shanghai.

What documentation should a buyer request before placing an order?

Buyers should ask for CE or ATEX certificates, material test reports, hydrostatic pressure test certificates, performance curves for actuators, and a detailed product specification sheet that includes dimensions, pressure class and material grade.