水液氣電磁閥，DF-20

產(chǎn)品概述

DF-20水液氣電磁閥是一款采用先導(dǎo)式結(jié)構(gòu)的通用型電磁閥，專為液體（水、油等）、氣體及低粘度介質(zhì)（≤20CST）的自動(dòng)化控制設(shè)計(jì)。其膜片式二次開閥結(jié)構(gòu)確保了高靈敏度和可靠性，適用于工業(yè)管道系統(tǒng)中介質(zhì)的快速通斷控制。閥體材質(zhì)可選黃銅或不銹鋼，法蘭或螺紋連接方式適配不同安裝需求，工作壓力范圍0.03~0.8MPa，介質(zhì)溫度覆蓋-10℃至+75℃。該產(chǎn)品線圈支持AC/DC多種電壓（如AC220V、DC24V），絕緣等級(jí)為B級(jí)，功率12W（φ5~φ20規(guī)格），溫升≤80℃，適合長(zhǎng)時(shí)間穩(wěn)定運(yùn)行。1411

技術(shù)特點(diǎn)

DF-20電磁閥采用分步直動(dòng)式設(shè)計(jì)，零壓差啟動(dòng)，流量大且響應(yīng)迅速（φ3~φ50口徑啟閉時(shí)間≤2秒）。其橡膠密封結(jié)構(gòu)降低了對(duì)介質(zhì)清潔度的要求，同時(shí)具備防泄漏性能。安裝時(shí)需保持介質(zhì)流向與閥體箭頭一致，線圈朝上且傾斜度小于30°，以確保最佳性能。產(chǎn)品提供常閉（斷電關(guān)閉）和常開（斷電開啟）兩種形式，用戶可根據(jù)系統(tǒng)需求靈活選擇。此外，電源允許波動(dòng)范圍為-15%~+10%，適應(yīng)不穩(wěn)定電網(wǎng)環(huán)境。2616

應(yīng)用場(chǎng)景

該電磁閥廣泛應(yīng)用于紡織、化工、食品加工、水處理等行業(yè)的流體控制系統(tǒng)中，如冷卻水循環(huán)、壓縮空氣管理、液壓油路切換等場(chǎng)景。其緊湊的外形（如G3/4"螺紋連接尺寸87×114mm）和輕量化設(shè)計(jì)便于集成到復(fù)雜管路。對(duì)于腐蝕性環(huán)境，可選不銹鋼閥體版本；高溫工況則建議選用耐熱密封材料（如EPDM）。產(chǎn)品出廠前經(jīng)過嚴(yán)格測(cè)試，確保長(zhǎng)期使用下的穩(wěn)定性。31519

Product Introduction

The DF-20 Water-Liquid-Gas Solenoid Valve is a pilot-operated general-purpose valve designed for automated control of liquids (water, oil), gases, and low-viscosity media (≤20CST). Its diaphragm-type secondary opening structure ensures high sensitivity and reliability, suitable for rapid on/off control in industrial piping systems. The valve body is available in brass or stainless steel, with flange or threaded connections to accommodate diverse installation requirements. Operating pressure ranges from 0.03 to 0.8MPa, and media temperature tolerance spans -10°C to +75°C. The coil supports multiple AC/DC voltages (e.g., AC220V, DC24V) with B-class insulation and 12W power consumption (for φ5~φ20 models), maintaining stable operation with ≤80°C temperature rise.111

Key Features

Featuring a step-by-step direct-acting mechanism, the DF-20 enables zero-pressure-difference activation, delivering large flow capacity and fast response (≤2 seconds for φ3~φ50 sizes). The rubber sealing structure reduces sensitivity to media purity while enhancing leak-proof performance. Installation requires aligning media flow direction with the valve arrow, keeping the coil upward at a tilt angle below 30° for optimal performance. Both normally closed (power-off closed) and normally open (power-off open) variants are offered for flexible system integration. The valve tolerates power fluctuations within -15%~+10%, adapting to unstable grid conditions.216

Applications

This solenoid valve is widely used in fluid control systems across industries like textiles, chemical processing, food production, and water treatment—applications include cooling water circulation, compressed air management, and hydraulic circuit switching. Its compact dimensions (e.g., 87×114mm for G3/4" thread) and lightweight design facilitate integration into complex pipelines. Stainless steel versions are recommended for corrosive environments, while high-temperature applications may require heat-resistant seals (e.g., EPDM). Rigorous pre-delivery testing ensures long-term operational stability.319

電話：021-63515605   63504668       63515606   63510720 

手機(jī)：18916150267 微信同號(hào) 13818327383  13601759153

傳真：021-63510720

 郵編：201803

地址：上海市嘉定區(qū)江橋張掖路355號(hào)6號(hào)樓8層www.shanghaiybw.com  www.shuangxudianzi.com  www.yqybjyw.com  www.meadowvalleygroup.com www.shanghaiyiqi.com