Products
Square turn round check valve
Shanghai Yingyi Environmental Technology Co., Ltd. is a company that integrates manufacturing, sales, and service, focusing on central air conditioning end products. Headquartered in Shanghai, China, it currently has two major production bases in Shanghai and Hefei, mainly producing air vents, air valves, static pressure boxes, air conditioners, mufflers, constant variable air volume valves, and other products. The company has always taken continuous improvement of product quality as its long-term goal, forging its own brand, and relying on strong technical research and development strength, excellent product quality, and perfect after-sales service, it has won unanimous praise from numerous design institutes, engineering companies, and direct users.
Product Overview:
Scope of application:
Used in pipelines or devices to prevent media backflow; Widely used in industrial, mining, civil building HVAC, exhaust gas dust removal system
System, which switches or precisely adjusts air flow, is one of the key equipment for achieving controlled ventilation modes in various environments.
Variety and specification:
Variety: manual butterfly valve, pneumatic butterfly valve, electric butterfly valve, manual and automatic integration type
Specification: DN400-DN2000
Material: carbon steel, galvanized, stainless steel
Technical characteristics:
Working temperature: 0 ℃~300 ℃
Working pressure: ± 5000Pa
Leakage rate: air leakage rate ≤ 3%
Sealing form: metal hard seal, double blade silicone soft seal
Blade structure: multi blade
Instructions for use: The check valve relies on the flow of the medium itself to open and close the valve flap, preventing media backflow
Characteristics of the valve:
(1) According to the test measurement, the air tightness of the valve is good, and its relative air leakage is about 3%.
(2) Strong corrosion resistance and long service life
