Electropneumatic valve QKL-B1HF

electrically-operatedflow controlfor compressed air

The QKL-B1HF is an ultra-high resolution proportional control valve. This series is an electronically controlled closed loop pressure regulator. The device converts a command signal to customers' specified pressure range. The QKL-B1HF consists of a control circuit board, one solenoid valve, an integral electronic pressure sensor, and a manifold. The control board compares the command signal to the integral pressure sensor, then drives the solenoid valve so that desired pressure is maintained even if the required flow rate varies. Two types of pressure regulator can be selected: pressure controller with built-in bleed, or pressure controller without built-in bleed. With built-in bleed version, the application does not consume any gas. The valve acts as pressure regulator with small exhaust capacity. Without built-in bleed version, the application consume gas or the gas is flammable. There is also a selection of different venting orifice made from ruby, converting this pressure regulator to a high accuracy and high resolution gas flow rate controller. Please consult us for suitable orifice. All our products have CE, SGS, RoHS certification with ISO13485 quality system. Features - Compact - High Precision - High Sensitivity Applications - Compact high resolution pressure control - Dynamic proportional pressure control - High resolution flow rate control Specifications Type: QKL-B1HF Output Range: 2 / 5/ 10 bar (29 / 72 / 145 psig) Supply Pressure Max: 11.5 bar (165 psi) Input Signal: 0-10V / 4-20mA / RS485 Monitor Output: 0-10V / 4-20mA / RS485 Supply: DC24V (≦5W) Medium: Clean compressed air or with 5 µm filter Repeatability: ±0.05% F.S. Resolution (max): ±0.03% F.S. Accuracy: ±0.1% F.S. Hysteresis: ±0.1% F.S. Flow Rate: 3L/min @ 1bar (orifice: 0.5mm) 120L/min@1bar (orifice: 3.0mm) Temp. Range (Operating): 0 ~ 70 ⁰C (32 ~ 158 ⁰F) Port Size: G1/8" Manifold Material: Aluminum Wetted Materials: Aluminum, Stainless steel, Brass, FKM Electrical Connection: M12 Connector (2m) Ruby orifice selection: 0.2 / 0.3 / 0.4 / 0.5 / 0.6 mm