PV34-B電子控制的比例閥 美國omega
電子控制的比例閥
PV14
5年保修
電子控制的比例閥
PV14:電子控制的比例閥
PV14-B
可編程直接或反作用控制
精密的控制是通過一個10位的轉換器控制電機實現200步/轉
工業用堅固的結構
外部**覆蓋觸點打開/關閉閥
戶外使用的NEMA-4評級
理想的液體和氣體的應用
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.
規格：
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)
產品型號 產品描述
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
PV34-B電子控制的比例閥 美國omega
