normally closed pneumatic diaphragm valve
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I. Detailed Information on EG6B41J Normally Closed Pneumatic Diaphragm Valves:
Notes for this product (Please carefully read the instruction manual provided by our company before installation):
(1) Since the diaphragm is a wearing part, it should be replaced regularly according to the characteristics of the medium.
(2) Limited by the diaphragm material, diaphragm valves are suitable for low-pressure and relatively low-temperature applications.
(3) Generally, they are not suitable for use in pipelines with temperatures above 60°C, pipelines transporting organic solvents and strong oxidizing media, or pipelines with relatively high pressure.
II. Product Features of EG6B41J Normally Closed Pneumatic Diaphragm Valves:
G6B41J-10 Type Normally Closed Pneumatic; G6B41W-6.4 Type; G6B41J-6.4 Type; G6B41FS-6.4 Type Design and Manufacturing in Accordance with: GB12239; Structural Length in Accordance with: GB12221; Flange Connection Dimensions in Accordance with: GB4216.4; Testing and Inspection in Accordance with: GB/T13927; Normally Closed Pneumatic Lined Diaphragm Valves
III. Applications and Main Performance Specifications:
1. Depending on different lining materials, they can be used as opening and closing mechanisms to control the flow of media in pipelines transporting various fluid media at different temperatures.
2. Recommended Application Ranges for Various Lining Materials of G6B41J Normally Closed Pneumatic Lined Diaphragm Valves:
Lining Material (Code) | Applicable Temperature | Applicable Medium |
Hard Rubber (NR) | -10°C～85°C | Hydrochloric acid, fluorosilicic acid, formic acid, phenolic acid, hydrochloric acid, 30% sulfuric acid, 50% hydrofluoric acid, 70% phosphoric acid, alkalis, salts, metal plating solutions, sodium hydroxide, potassium hydroxide, neutral salt aqueous solutions, 10% sodium hypochlorite, wet chlorine gas, ammonia water, most alcohols, organic acids and aldehydes, etc. (excluding strong oxidizing agents such as nitric acid, chromic acid, concentrated sulfuric acid, and organic solvents like H₂O₂) |
Soft Rubber (BR) | -10°C～85°C | Has good wear resistance. Mainly used in sulfuric acid below 50%, sodium hydroxide, potassium hydroxide, neutral salt bath solutions and ammonia liquid, cement, clay, coal ash, granular chemical fertilizers and highly abrasive solid fluids, various concentrations of thick and viscous liquids, etc. |
Butyl Rubber (IIR) | -10°C～120°C | Corrosion-resistant and wear-resistant. Resistant to the vast majority of organic acids, alkalis, hydroxides, inorganic salts, inorganic acid elemental gases, alcohols, aldehydes, ethers, ketones, esters, etc. |
Chloroprene Rubber (CR) | -10°C～120°C | Animal oils, vegetable oils, inorganic lubricating oils, and corrosive mud with a wide pH range, with good abrasion resistance. |
Unlined Cast Iron | -40°C～100°C | Non-corrosive media |
IV. Recommended Application Ranges for Diaphragm Materials:
Diaphragm Material (Code) | Suitable Temperature | Applicable Medium |
Butyl Rubber (Grade B) | -40°C～100°C | Good acid and alkali resistance. Resistant to 85% sulfuric acid, hydrochloric acid, hydrofluoric acid, phosphoric acid, caustic alkali, and various esters. |
Natural Rubber (Grade Q) | -50°C～100°C | Used for purified water, inorganic salts, and diluted inorganic acids. |
V. Main Performance Parameters:
Model | Nominal Diameter DN (mm) | Working Pressure WP (MPa) | Test Pressure (MPa) | Test Temperature (°C) | |
Sealing | Strength | ||||
EG41J W-16 | 20-50 | 1.6 | 1.76 | 2.4 | Normal Temperature |
EG41J W-10 | 65-200 | 1.0 | 1.1 | 1.5 | |
| Industry Category | Machinery & Equipment/Valves/Diaphragm Valves |
|---|---|
| Product Category | |
| Brand: | 上海舟腾 |
| Spec: | EG6B41J |
| Stock: | 99 |
| Manufacturer: | 上海舟腾泵阀制造有限公司 |
| Origin: | 113120 |
