Product Presentation:
RV700 series regulating valves have V-Port, multi-hole, pressure balanced, multi-stage pressure-reducing type spools to meet the requirements of various working conditions.RV500 series regulating valve spools are forged and then processed to improve the compactness of the spool material to enhance the spool’s resistance to scouring.
Pressure balanced ——- pressure balanced spool used in applications with large differential pressure, the spool adopts a multi-hole pressure balanced design to eliminate the differential pressure of the medium to the spool of the unbalanced force, thereby reducing the output force required by the regulating valve actuator.
2.Multi-stage pressure reduction type ——LDM unique multi-stage pressure reduction technology makes the pressure reduction effect more obvious and outstanding. Each stage can reduce pressure up to 4.0~5.0MPa, up to 4 stages.
Product Parameter:
Valve type: control valve, single-seat, through, pressure balancing valve
Nominal diameter: DN25-150
Nominal pressure:PN16-250-320-400
Valve body material: carbon steel 1.0619 (GP240H) / alloy steel 1.7357 (G 17CrMo5-5) / alloy steel 1.7379 (G17CrMo9-10) / stainless steel 1.4931 (GX23CrMoV12-1)
Seat material: 17 021.6 (1.4006);42 2906.5 (1.4027)+stellit6
Spool material: 17 023.6 (1.4028) alloy steel
Working temperature: -20-400℃ / -20-550℃ / -20-600℃
Connection flange: flange or welding
Port standard: from acc to EN13 1075 (3/1991)
Spool type: Class 1-3, pressure-smoothing multi-port spools
Flow characteristics: linear, equal percentage
Leakage rate: acc to EN1349 (5/2001) ClassV
Packing: graphite for other media special applications
