比例电磁阀.pptVIP

* * * * * * * * * * * * * * * * * * * * * * * * * * Proportional Valve - Overview * Proportional Valve - Overview * 压力控制 – 直动溢流 Inlet 1 Outlet 2 a1 a2 电磁铁直接作用在阀芯或者主弹簧上。 电磁力直接与入口液压力作用。 作用面积分有相同面积和非相同面积之分. 非相同面积的阀芯具有更好的稳定性 * R B A P - * * * Capacity [Cavity] .25 gpm (1 l/min) [T-8A] Control Options X – No Manual Override (+$5.00) M – Manual Override (+$30.00) L – Manual Override - Adjustable (+$30.00) T – Tuning Option Seal Options N – Buna (+$2.00) V – Viton Nominal Pressure Adjustment Range A – 300 - 3000 psi (20 - 210 bar) B – 150 - 1500 psi (10 - 105 bar) (+$1.00) D – 50 – 750 psi (3,5 – 50 bar) (+$5.00) W – 500 - 5000 psi (35 - 350 bar) Model Code Structure * Typical Performance – Direct Operated Relief * RBAN, 反向比例溢流阀 T-8A孔型的又一产品 初始设定为无信号时的压力 压力只能工厂设定 和RBAP比例阀结构相似 可作为主级，也可以作为先导级 * 压力控制系列 – 直动式减压/溢流阀 电磁力于直接作用于A2面积相抵消. 由于复位弹簧的存在，所以在没有信号的情况下，初始压力为0. 由于电磁力所限，减压压力值一般小于1000 psi. Reduced Pressure 1 Inlet 2 A2 Tank 3 * Capacity [Cavity] 5 gpm (20 l/min) [T-11A] Model Code Structure P R D * - M * * - * * * Control Options M – Standard Override (+$30.00) L – Screw Adjustment (+$30.00) T – Trim Adjustment X – No Override Seal Options N – Buna (+$3.00) V – Viton Pressure Range B – 100-1200 psi (7-80 bar) D – 50-500 psi (3,5-35 bar) E – 25-250 psi (1,7-18 bar) (+$5.00) S – 10-100 psi (0,7-7 bar) (orifice dividing circuit) (Available with ‘L’ Spool Configuration only) Spool Configuration P – Positive Overlap Spool L – Underlapped Spool Coil Code Direct-Acting Proportional Pressure Reducer/Reliever * Typical Performance – Direct Acting Reducer/Reliever Pressure vs. Command (Deadhead) Regulation Curves 2000 psi (210 bar) Inlet Pressure * 压力控制 – 先导操作式 直动式的比例阀作为先导级控制平衡式主级阀。 先导阀可以单独安装或者装在主级阀上。 最大流量可以达到200gpm.(760L/min) * Pressure Controls – Pilot Operated Relief 1 2 (25 gpm) (50 g