ASCO explosion-proof solenoid valve VCEFCMG551H401MO with junction box

ASCO Explosion-Proof Solenoid Valve VCEFCMG551H401MO with Junction Box. ASCO solenoid valves consist of two basic functional units: A. a solenoid coil (electromagnet) and a magnetic core;

• a valve body containing one or more orifices. When the ASCO solenoid coil is energized or de-energized, the operation of the magnetic core causes fluid to flow through the valve body or be shut off. In ASCO Red-Hat and Red-Hat II⑧ valves, the solenoid coil is directly mounted on the ASCO valve body, and the magnetic core is enclosed in a sealing tube, forming a simple and compact combination. ASCO Direct-Acting Valves (Figures 1A and 1B): In direct-acting valves, when the solenoid coil is energized, the magnetic core directly opens the orifice of a normally closed valve or closes the orifice of a normally open valve. The valve operates within a pressure range from 0 psi to its rated maximum pressure. The force required to open the valve is proportional to the orifice size and fluid pressure. As the orifice size increases, the required force also increases. To open a large orifice while maintaining a small solenoid coil size, a pilot-operated solenoid should valve be selected. ASCO pilot-operated valves (Figures 2A and 2B, 3A and 3B) are operated using line pressure—a pilot orifice and a bypass orifice. When the solenoid coil is de-energized, the pilot orifice closes, and line pressure is applied through the bypass orifice to the top of the piston or diaphragm, providing a seat force to tightly close the valve. When the ASCO solenoid coil is energized, the core opens the pilot orifice, eliminating the pressure on the top of the piston or diaphragm through the valve outlet. piston away from the main orifice, opening the valve. Two structures are available: A: Floating diaphragm or piston type, requiring a small pressure drop to keep the valve open. B: Suspended diaphragm or piston type, mechanically kept open by the solenoid coil core. The valve can open or remain open even with zero differential pressure. ASCO Explosion-Proof Solenoid Valve VCEFCMG551H401MO with Junction Box ASCO Solenoid Valve Model 551 Overview Operating Differential Pressure: 2-10 bar Maximum Permissible Pressure: 10 bar Flow Rate (at 6 bar): 860 l/min (ANR) Medium Air, neutral gas (filtered) Temperature Range -25°C to +60°C
• Seals NBR (Nitrile Rubber) + PUR (Polyurethane) Features of ASCO Model 551 Solenoid Valve ● 3/2 slide bar solenoid valve, threaded connection ● Protects against liquids, dust, or other foreign objects (enabling protection against external influences) ● Epoxy-coated coil, suitable for general applications ● Standard configuration: manual operator ASCO Explosion-Proof Solenoid Valve Elastomer Material Overview Nitrile Rubber Nitrile rubber generally refers to nitrile rubber, a synthetic elastomer of ASCO standard, mainly used as resilient seats or seals. It is suitable for most gas, water, and light oil applications, with an effective temperature range from 0°F (-18°C) to 180°F (82°C). Polychloroprene rubber (PVC) is mainly used for external sealing in refrigeration applications and also in oxygen production. Its effective temperature range is from 0°F (-18°C) to 180°F (82°C). Ethylene propylene (EPR) is used in applications above the temperature range of nitrile rubber (NBR), such as handling hot water and steam. a fairly wide range of fluids, but it cannot be used for petroleum-based fluids or fluids containing impurities (such as lubricating gases). Its effective temperature range is from -10°F (-23°C) to 300°F (149°C). Fluororubber* / Fluororel** and other fluororubbers are fluorocarbon elastomers mainly used for handling carbohydrates and liquids such as aircraft oil, gasoline, and solvents, which can cause excessive swelling of NBR. Like EPR, fluororubber has a high temperature range but is more resistant to "dry heat." Fluororubber has a wide range of chemical applications, with an effective temperature range from 0°F (-18°C) to 350°F (177°C). refrigeration valves to those of steam valves. Teflon is difficult to manufacture and possesses a "cold flow" characteristic, which likely contributes to the low leakage rate of ASCO explosion-proof electromagnetic valves, especially in gaseous environments.

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