Products
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:
Widely used in industrial, mining, civil building HVAC, exhaust gas dust removal systems, to switch or accurately adjust air flow,
It is one of the key equipment to achieve controlled ventilation modes in various environments.
Variety and specification:
Type: Check valve
Specification: DN150-DN1200
Material: carbon steel, galvanized, stainless steel
Technical characteristics:
Working temperature: 0 ℃~300 ℃
Working pressure: ± 5000Pa
Leakage rate: air leakage rate ≤ 1%
Sealing form: metal hard seal, double blade silicone soft seal
Blade structure: one piece type
Installation instructions: horizontal installation, vertical installation
Instructions for use: Open naturally under the wind pressure of the pipe and connect to the air duct flange.
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 1%.
(2) Strong corrosion resistance and long service life
