PV14-B电子控制的比例阀 美国omega
电子控制的比例阀 PV14 5年保修 电子控制的比例阀 PV14:电子控制的比例阀 PV14-B 可编程直接或反作用控制 精密的控制是通过一个10位的转换器控制电机实现200步/转 工业用坚固的结构 外部**覆盖触点打开/关闭阀 户外使用的NEMA-4评级 理想的液体和气体的应用 An electronically controlled proportioning valve (ECV) will take an electrical input signal (usually 4-20 mA) and proportion the amount of flow through a pipe from fully closed to fully open. These valves are used in industrial automation controls as proportional actuators and other industrial control applications. The OMEGA ECV valve features programmable reverse or direct acting control. Direct acting means that, as the current signal rises, the valve allows more flow, while reverse acting will decrease the flow rate with an increasing current signal. These units can also be programmed to sense a failure in the current loop and fully close/ open the valve upon the signal level’s dropping below 3.5 mA. Dry contact remote switches can be used in conjunction with the standard current signal to provide an alarm signal which fully closes/opens the valve. The rugged epoxy-coated aluminum package insures NEMA-4X protection or the powerful microprocessor and servo actuator. 规格： ELECTRONICS: Power Supply: 12-16 Vdc @1.5 A (10 Watts typ, 23 Watts max) (2.5 Amps for 3 /4 valve, 38 Watts max) Inputs: 4-20 mA control signal (250 ohms impedance), and dual external switch contact sensing via 5 Vdc signal Control Modes: direct or reverse, full or split range, high or low range, fail condition open or closed Adjustments: Zero offset ±0.5 mA Operating Temp.: 0 to 49°C (32 to 120°F) Enclosure: NEMA-4X, epoxy painted aluminum Connections: 1 /2 NPT conduit (16" 22 AWG pigtail leads) ACTUATOR: Type: DC step motor, 200 steps/rev, 4 rev travel Resolution: 200:1 (0.5%) (4 steps increment) Speed: 18 rpm Torque: 57.5 in-oz (188 in-oz 3 /4 valve) VALVE: Type: In-line globe Temp.: 0 to 250°F (-18 to 120°C Pressure: 120 psi max (70 psi on 3 /4 "valve) Max Flow: GPM= Cv (DP/SG) 1 /2 liquids; for gases use standard equation found in solenoid valve section Wetted Parts: Ethylene propylene rubber O-ring, PTFE washer, and valve body. (Brass models have 303 SS internal trim.) COMPLETE UNIT: Dimensions: 216 H x 185 W x 137 mm D (8.5 x 7.3 x 5.4"); /2 valve: 229 H x 185 W x 137 mm D (9 x 7.3 x 5.4"); /4 valve: 305 H x 203 W x 191 mm D (12 x 8 x 7.5") Weight: 3.2 kg (7 lbs); 1 /2 valve: 4.5 kg (10 lb); 3 /4 valve: 8.2 kg (18 lb)
产品型号 产品描述 PV14-B 1/4" Brass valve with 1/2" NPTF fittings and a Cv = 0.6 PV14-SS 1/4" 316 SS valve with 1/2" NPTF fittings and a Cv = 0.6 PV516-B 5/16" Brass valve with 1/2" NPTF fittings and a Cv = 1.0 PV516-SS 5/16" 316 SS valve with 1/2" NPTF fittings and a Cv = 1.0 PV38-B 3/8" Brass valve with 1/2" NPTF fittings and a Cv = 1.7 PV38-SS 3/8" 316 SS valve with 1/2" NPTF fittings and a Cv = 1.7 PV12-B 1/2" Brass valve with 3/4" NPTF fittings and a Cv = 3.5 PV12-SS 1/2" 316 SS valve with 3/4" NPTF fittings and a Cv = 3.5 PV34-B 3/4" Brass valve with 1" NPTF fittings and a Cv = 6.5 PV34-SS 3/4" 316 SS valve with 1" NPTF fittings and a Cv = 6.5 U12Y100 Unregulated power supply, 12 Vdc @ 3 Amps PV14-B电子控制的比例阀 美国omega
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