2V Series 2/2 Way Brass Fluid Solenoid Valve | Direct Acting & Pilot Operated

Brand: SOLH by Richge Technology

1. Product Overview & Core Classification

     The SOLH 2V series is a professional 2/2 way fluid solenoid valve designed for universal fluid control of air, water and oil. It is divided into two core structural types: 2V025 direct acting type and 2V130/2V250 diaphragm pilot operated type. Adopting high-quality brass valve body with premium sealing materials, the series features zero-pressure startup option, large flow capacity, fast response and wide medium compatibility. It serves as the mainstream general-purpose fluid control valve for automated water circuits, air pipelines, vacuum systems and lubrication equipment.

2. Complete Model Coding Rules

  1. Full Coding Logic: 2V - Orifice Size - Thread Port - Wiring Type - Voltage

  2. Standard Order Examples

     • 2V025-08-DC24V: φ2.5mm orifice, G1/4 thread, standard DIN socket, DC 24V

     • 2V130-15W-AC220V: φ13mm orifice, G1/2 thread, wire lead outlet, AC 220V

3. Two Core Structural Types & Selection Guidelines

  3.1 2V025 Direct Acting Type | Zero Pressure Start

    Core Advantage: Fully operable at 0MPa zero pressure

     • Working Principle: The electromagnetic coil directly pulls the iron core to open the valve port, realizing full opening and closing control under zero pressure difference without medium pressure assistance.

     • Orifice & Flow: φ2.5mm orifice, CV value = 0.23

     • Port Specification: G1/8 (06), G1/4 (08)

     • Pressure Range: 0 ~ 1.0MPa, supports zero-pressure startup

     • Sealing Material: Standard VITON fluororubber, excellent resistance to oil, water and weak acid corrosion

     • Body Material: Compact high-precision brass valve body

     • Applicable Scenarios: Small flow fluid control, zero/low pressure start-stop, vacuum circuit switch, miniature water cooling and spraying systems

  3.2 2V130 / 2V250 Diaphragm Pilot Operated Type | Differential Pressure Start

    Core Feature: Large flow, low power consumption, requires minimum pressure difference

     • Working Principle: Pressure relief through the pilot hole allows medium pressure to push open the diaphragm for valve opening. Minimum startup pressure difference: 0.05MPa (0.5bar), unable to open under zero pressure.

     • 2V130 Specification: φ13mm orifice, CV=6.2; Ports: G3/8 (10), G1/2 (15)

     • 2V250 Specification: φ25mm orifice, CV=13; Ports: G3/4 (20), G1 inch (25)

     • Pressure Range: 0.05 ~ 1.0MPa

     • Sealing Material: NBR nitrile rubber, optimal for pure water and compressed air media

     • Body & Coil: Thickened durable brass body, matched with low-power high-stability coil

     • Applicable Scenarios: Large-flow water circuits, air compressor water intake, boiler water supply, main gas/liquid pipeline on-off control

4. Unified General Technical Parameters

5. 2V vs 2P Series Comparison | Anti-Mistake Selection Guide

Selection Formula

     Zero-pressure on-off demand → Choose 2V025 / 2P; Large flow with water pressure → Choose 2V130 / 2V250; Narrow space & low cost budget → Choose 2P plastic valve

6. Typical Application Scenarios

  6.1 2V025 Application

     • Vacuum generator air source on-off control

     • Miniature equipment cooling water circuit

     • Automated spraying and micro water supply systems

     • Precision small-flow fluid switching equipment

  6.2 2V130 / 2V250 Application

     • Chiller and industrial cooling water system

     • Air compressor water intake control

     • Boiler automatic water replenishing system

     • Centralized air supply main pipeline switch

     • Large-flow industrial water and gas circulation control

7. Matching Supporting Accessories

     • Front Air Source Treatment: Match AW series air pressure regulating filter to stabilize air source and filter impurities

     • Vacuum Circuit Matching: Cooperate with ZU series vacuum generator for reliable air source cut-off

     • Pipeline Connection: Match KQ2 quick-connect male thread straight fittings for fast and leak-free piping installation

One Sentence Summary

     SOLH 2V series 2/2 way brass solenoid valves cover zero-pressure direct acting and large-flow pilot operated types, featuring universal water/air/oil compatibility, fast response and IP65 protection, providing cost-effective and stable fluid on-off solutions for diverse industrial automation systems.