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British NORREN NORGREN Solenoid Valve - Selection Manual

Through a global network of distributors and through a global network of 26 countries, Nuoguan manufactures and supplies a full range of pneumatic control and automation products to ensure that customers can purchase the pneumatic products they need from Novo Crown, a trusted supplier. . At the same time, Nuoguan designs and produces tens of thousands of special products every year to meet the specific requirements of customers. Companies in 26 countries can provide customers with sales including pneumatic control circuit design, pneumatic technology and product problems. Technical advice, dedicated application guidance, technical support at all levels, and production and processing of conventional products locally.

Nuoguan solenoid valve is an electromagnetically controlled industrial equipment. It is an automatic basic component used to control fluids. It is an actuator and is not limited to hydraulic or pneumatic. Used in industrial control systems to adjust the direction, flow, speed and other parameters of the media. The Novo solenoid valve can be used with different circuits to achieve the desired control, while the precision and flexibility of the control can be guaranteed. There are many kinds of Nuoguan solenoid valves. Different Nuoguan solenoid valves play a role in different positions of the control system. The most commonly used ones are check valves, safety valves, directional control valves, speed control valves, etc.

Nuoguan solenoid valve working principle
There are closed chambers in the Nuoguan solenoid valve. There are through holes in different positions. Each hole is connected with different oil pipes. The middle of the cavity is a piston. On both sides are two electromagnets. Which side of the magnet coil is energized and the valve body will be attracted. On which side, by controlling the movement of the valve body to open or close different oil drain holes, and the oil inlet hole is normally open, the hydraulic oil will enter different oil drain pipes, and then the pressure of the oil pushes the piston of the oil cylinder. The piston drives the piston rod, which drives the mechanical device. This controls the mechanical motion by controlling the current through and off of the electromagnet.

Selection basis:
1. Select the Novo solenoid valve according to the pipeline parameters: diameter specification (ie DN), interface mode
1) Determine the diameter (DN) size according to the internal pipe size or flow requirement of the pipeline;
2) Interface mode, generally >DN50 should choose flange interface, ≤DN50 can be freely selected according to user needs.
2. Select the Novo solenoid valve according to the fluid parameters: material, temperature group
1) Corrosive fluid: Corrosion-resistant Novo solenoid valve and all stainless steel should be used; edible ultra-clean fluid: food grade stainless steel Novo solenoid valve should be used;
2) High-temperature fluid: It is necessary to choose the Novo solenoid valve made of high-temperature resistant electrical materials and sealing materials, and choose the type of piston structure;
3) Fluid state: large to a gaseous state, liquid or mixed state, especially when the diameter is larger than DN25, it must be distinguished;
4) Fluid viscosity: Usually it can be arbitrarily selected below 50cSt. If it exceeds this value, high viscosity Novo solenoid valve should be used.
3. Select the Novo solenoid valve according to the pressure parameters: principle and structure
1) Nominal pressure: This parameter has the same meaning as other general-purpose valves, and is determined according to the nominal pressure of the pipeline;
2) Working pressure: If the working pressure is low, the direct-acting or step-by-step direct-acting principle must be used; when the minimum working pressure difference is above 0.04Mpa, direct-acting, step-by-step direct-acting, and pilot-operated can be used.
4, electrical selection: voltage specifications should be preferred to use AC220V, DC24 is more convenient.
5, according to the length of continuous working time to choose: normally closed, normally open, or sustainable power
1) When the Nuoguan solenoid valve needs to be opened for a long time, and the duration is longer than the closing time, the normally open type should be selected;
2) If the opening time is short or the opening and closing time is not much, then the normally closed type is selected;
3) However, some working conditions for safety protection, such as furnace and kiln flame monitoring, can not be selected for normal opening, and should be selected for long-term energization type.
6. Select auxiliary functions according to environmental requirements: explosion-proof, non-return, manual, waterproof fog, water shower, diving.
Novo crown solenoid valve selection principle
safety:
1. Corrosive medium: Plastic Wangnuoguan solenoid valve and all stainless steel should be used; for strong corrosive medium, isolation diaphragm type must be used. For neutral media, it is also advisable to use the copper alloy as the valve material of the Nobel vacuum valve. Otherwise, the rust will often fall off in the valve casing, especially in occasions with infrequent movement. Ammonia valves cannot be made of copper.
2. Explosive environment: The corresponding explosion-proof grade products must be selected. For outdoor installation or dusty occasions, waterproof and dustproof varieties should be used.
3. The nominal pressure of the Novo crown solenoid valve should exceed the maximum working pressure in the pipe.

Nuoguan solenoid valve commonly used models
2DDC5009 8240002.9101.230.50
2DDC5003 8240003.9101.024.00
2AZD5022 8240100.8160.024.00
2AZD5007 8240100.9101.024.00
2AZD5004 8240100.9101.110.50
2DDD5001 8240100.9101.230.50
2AZD5021 8240100.9136.230.49
2AZD5006 8240102.9101.024.00
2AZD5023 8240114.9136.024.00
2AZE5058 8240200.4682.024.00
2DDE5002 8240200.9100.000.00
51AE1005 8240200.9100.230.50
51AE1008 8240200.9101.024.00
2AZE5030 8240200.9101.024.50

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