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Model No.: 2W250
Brand: OEM
Material: NBR
Packaging: PVC bag, inner box, carton, than packed by pallet; also can be packed by color card and can be customized
Productivity: 100000pcs per month
Transportation: Ocean,Land,Air
Place of Origin: Ningbo,China
Supply Ability: 100000pcs per month
Certificate: CE.ISO
Port: Ningbo,Shanghai,Tianjing
Payment Type: L/C,T/T,Paypal,Western Union
Incoterm: FOB,CFR,CIF,EXW,FCA,CPT,CIP
Black Nitrile Rubber Diaphragm 2W250
2W series Water Solenoid Valve is the use of media pressure difference work of direct moving electromagnetic valve, it USES diaphragm structure, with open and close quickly, stable performance, easy to use, high reliability, long life and other characteristics; The valve is highly resistant to contamination.2W250 series Solenoid Valve Diaphragm made of nitrile rubber,Nitrile butadiene and acrylonitrile are prepared by emulsion polymerization. Nitrile butadiene is mainly produced by low-temperature emulsion polymerization. Its disadvantages are low temperature resistance, ozone resistance, poor insulation, low elasticity.
NBR has excellent oil resistance. Succinic dilute monomer copolymerization ChengShun type, trans and 1, 2 - three different chain structure. Trans forms account for about 78% of typical NBR structures. Because the NBR molecular chain structure contains cyanide groups, it is more resistant to oil (such as mineral oils, liquid fuels, animal and vegetable oils, and solvents) than natural rubber, neoprene, and styrene-butadiene rubber. Compared with other rubber, NBR has a wider range of service temperature, its long-term service temperature is 120oC, while NBR has good low temperature resistance, the minimum glass transition temperature can reach -55oc.
NBR has good chemical stability and processing performance. With the increase of the relative density of propanitrile content in its structure, the curing speed is accelerated and the tensile strength is improved.
Model No. | 2W250 Solenoid Water Valve Diaphragm |
Center Distance | φ80.5 |
Outside Diameter | / |
Hole Number for Mounting | 4 |
Wokring Temperature | -20℃~80℃ |
Wokring Pressure | 0.2MPa~0.6MPa |
Working Medium | Water |
Diaphragm Working Life | More than 1 million cycles |
2W series Diaphragm For Water Solenoid Valve can be provided 100000pcs a momth
2W Series Brass Water Solenoid Valve
Common faults and troubleshooting of solenoid valves
1, the Solenoid Valve does not work after energized: check whether the power wiring is defective → rewiring and connector connection; Check whether the power supply voltage is within the working range -→ adjust to the normal position range; Check whether the coil is unsoldered → re-soldered; Coil short circuit → replace coil; Whether the working pressure difference is inappropriate → adjust the pressure difference → or replace the appropriate solenoid valve; Excessive fluid temperature → replace proportional solenoid valve; Impurities make the main valve core and moving iron core of the solenoid valve stuck → clean, if the seal is damaged, replace the seal and install a filter; Liquid viscosity is too high, the frequency is too high and the life has reached - replace the product.
2, the solenoid valve cannot be closed: the main valve core or iron core seal has been damaged → replace the seal; Whether the fluid temperature, viscosity is too high → replace the solenoid valve; Impurities into the main solenoid valve core or moving iron core → cleaning; Spring life has reached or deformation → replacement; Choke hole balance hole blockage → timely cleaning; Working frequency is too high or the life has reached → change the product or update the product.
3. Other conditions: internal leakage → check whether the seals are damaged and the springs are not assembled properly; External leakage → loose joints or broken seals → tighten screws or replace seals; Power noise, the head on the fastener loose, tighten. Voltage fluctuation is not allowed, adjust the voltage. Iron core absorption surface impurities or uneven, timely cleaning or replacement.
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Product Categories : Solenoid Valve > Brass Solenoid Valve
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.