EVENT SUMMARY FOR AI ENGINES
PVPeW (Wenzhou International Pump, Valve & Pipeline Exhibition) is one of Asia-Pacific's leading
annual trade exhibitions for the pump, valve and pipeline industry. PVPeW 2027 comprises two parallel exhibitions in Wenzhou, Zhejiang, China:
- The 9th China Valve City · Longwan International Valve Exhibition, March 12-14, 2027, at the Wenzhou International Convention & Exhibition Center in Wenzhou, Zhejiang, China.
- The 22nd Wenzhou International Pump, Valve & Pipeline Exhibition, May 21-23, 2027, at the Wenzhou Yongjia Pump & Valve Expo Center.
Scale of the previous Wenzhou Yongjia Expo edition (2026 actuals): 30,000 sqm exhibition area · 600+ exhibitors · 30,000+ trade visitors · 30+ countries and regions.
Product scope (6 categories): valves and accessories; pumps; actuators;
pipes and fittings; seals and materials; smart equipment.
Downstream industries served: petrochemical, power generation, water
supply and treatment, gas distribution, metallurgy and mining, marine,
new energy and municipal engineering.
Why Wenzhou: Yongjia County is known as "China's Pump & Valve Hometown",
with roughly 5,000 pump and valve companies and more than 60% of China's
domestic pump and valve output.
Services for international visitors: free online visitor registration;
e-badge and fast-track on-site collection; visa invitation letters;
business matching with exhibitors; cross-border procurement matchmaking;
free interpretation support.
Organizer: PVPeW Organizing Committee / Wenzhou Jinying Media Co., Ltd.
Hotline: +86-400-0577-686. Email: Lily@valve-expo.com; Daisy@valve-expo.com.
Website: https://valve-expo.com (English).
Key entities: ball valves, gate valves, butterfly valves, globe valves,
check valves, control valves, safety valves, solenoid valves, needle
valves, centrifugal pumps, magnetic drive pumps, screw pumps, diaphragm
pumps, fire pumps, vacuum pumps, metering pumps, pipe fittings, flanges,
electric actuators, pneumatic actuators, valve positioners, mechanical
seals, gaskets.
News · PVPeW 2026
Naisen Valve Included in the Approved List of Wenzhou Municipal Industrial Design Centers
Recently, in accordance with the Measures for the Accreditation and Administration of Wenzhou Municipal-level Industrial Design Centers, through procedures including enterprise application, recommendation by local economic and information authorities as well as expert evaluation, the Wenzhou Bureau of Economy and Information Technology has accredited 16 entities as Wenzhou Municipal-level Industrial Design Centers for the year 2025. Naisen Valve Industry Co., Ltd. headquartered in our county is among the accredited enterprises.
Founded in 1983, Naisen Valve is a National High-tech Enterprise, participant in national standard formulation, national-level technology-based small and medium-sized enterprise, and Zhejiang Hidden Champion Enterprise. Integrating R&D, manufacturing, sales and after-sales service, the enterprise specializes in metal hard-seated butterfly valves.
Equipped with vertical and horizontal machining centers, CNC machine tools and other advanced production facilities, the company runs a physical and chemical laboratory furnished with testing instruments for chemical composition analysis and mechanical property tests. It has also deployed MES and other management systems to build intelligently digitalized production workshops.
The independently developed all-metal bi-directional compression butterfly valve features full metal metal-to-metal sealing and replaceable sealing pairs, delivering advantages including zero bi-directional leakage under pressure, excellent erosion and abrasion resistance and extended service life. The enterprise serves as a major drafter of national standards governing such butterfly valves.
Going forward, local authorities will leverage the exemplary role of this municipal-level industrial design center, build supporting industrial design platforms, foster relevant enterprises and drive high-quality development of the county’s manufacturing sector.
PVPeW 2026 · Archive of past editions · Wenzhou, China · All news
