ODE 21H7KV120 Product Description

Overview

ODE 21H7KV120 is an Italian-made 2/2-way pilot-operated normally closed solenoid valve of the ODE 21H series. ODE 21H7KV120 adopts brass valve body and FKM (Viton) diaphragm seal, suitable for switching air, water, hot water and light neutral fluids. ODE 21H7KV120 is widely used in industrial automation, water treatment and heating equipment as a common fluid control spare part.

Features

ODE 21H7KV120 is G3/8 threaded connection with DN10 orifice, Kv value 35 L/min. It is pilot diaphragm structure, requires minimum differential pressure to open and supports maximum working pressure up to 20 bar. The FKM diaphragm enables medium temperature range -10°C ~ +140°C, suitable for hot water and steam auxiliary circuits. ODE 21H7KV120 supports multiple coil voltage options including 24V DC, 110V AC, 220/230V AC 50/60Hz. It has compact brass body and standard coil assembly for quick replacement. It can be fitted with surge suppressor accessories for inductive noise protection. ODE 21H7KV120 complies with European fluid control standards and has stable performance for frequent cyclic switching.

Specs

Brand: ODE (Italy) Model: 21H7KV120 Product series: 21H Product category: 2/2-way pilot solenoid valve Function: Normally closed NC Connection: G3/8 Orifice: DN10 Kv: 35 L/min Max pressure: 20 bar Seal: FKM (Viton) Medium temp: -10 ~ +140°C Body: Brass Coil options: 24VDC / 110VAC / 220-230VAC Operation: Pilot operated (minimum pressure differential required)

Principle

ODE 21H7KV120 keeps closed by spring and upstream pressure when de-energized. When the coil is energized, the pilot small hole opens, the pressure above diaphragm releases, upstream fluid pressure lifts the diaphragm and opens the main valve port. When coil power cuts off, pilot hole closes, pressure rebalances on diaphragm top and the valve shuts tightly. ODE 21H7KV120 uses pilot structure to realize large flow control with low coil power consumption.

Applications

ODE 21H7KV120 is widely used for liquid and gas on-off control. It is commonly applied in boiler water supply, hot water circulation, air circuits, washing equipment, packaging machinery and water treatment skids. It is used for new equipment assembly and spare replacement of ODE solenoid valve systems.