應用范圍：
廣泛應用在航天、船舶重工、石油化工、給排水、消防設備、食品醫療設備、清洗設備、景觀噴灌、加濕設備、液壓設備、測試設備、水廠等,工作壓力在6.4---100MPa的管道系統中。
產品特點：
閥芯均為不銹鋼活塞式，活塞環不會被介質中的雜質卡死，動密封性能高,壽命長；活塞與金屬閥腔不產生直接摩擦，閥體安裝向無限制；專制線圈，不易燒毀；長時間停止動作重新啟動，動作同樣靈敏；最低啟動工作壓力0.5MPa。
主要技術參數：
|
產品規格： |
DN0.5～DN200 |
|
閥體材質： |
不銹鋼 |
|
適用介質： |
水、氣、油、蒸汽、燃氣、腐蝕流體等 |
|
溫度范圍： |
-100～+200℃ |
|
介質粘度： |
小于50C St(大于時需定制） |
|
防護性能： |
防水、防爆（Exd IICT5)、防腐 |
|
接線方式： |
接線座式；引線式；插頭式 |
|
控制方式： |
常開、常閉 |
|
電源電壓： |
DC12～127V; AC36～380V |
|
連接方式： |
內螺紋、法蘭（外螺紋和特殊接口可定做或加轉接頭） |
|
泄 漏 量： |
零 |
工作原理：
常閉：當線圈通電時，先導閥芯吸合，先導孔打開，閥上腔卸壓，活塞靠下腔介質壓力推動，電磁閥打開；當線圈斷電時，先導閥芯靠彈簧復位，先導孔關閉，閥腔由活塞節流孔增壓和復位彈簧的推力，電磁閥關閉。
常開：當線圈通電時，先導孔關閉，閥上腔由活塞節流孔增壓和復位彈簧的推力，電磁閥關閉。當線圈斷電時，先導閥芯靠彈簧復位，先導孔打開，閥上腔卸壓，活塞靠下腔介質壓力推動，電磁閥打開。
規格尺寸：
|
公稱通徑 |
連接尺寸
(D) |
D
(mm) |
L
(mm) |
L1
(mm) |
L2
(mm) |
H
(MM) |
H1
(mm) |
B
(mm) |
|
DN15 |
G1/2 |
28 |
95 |
20 |
2 |
220 |
22 |
68 |
|
DN20 |
G3/4 |
38 |
95 |
20 |
2 |
220 |
22 |
68 |
|
閥體材質 |
精鑄304、316 |
|
適用壓力 |
0.5～60MPa |
|
特殊功能 |
（其它要求可定制） |
注：出口端壓力大于進口端壓力，介質會反向導通。可安裝止回閥或訂制自帶止回功能的閥。
Applications:
Widely used in aerospace, shipbuilding Heavy Industry, petrochemical, water, fire fighting equipment, food and medical equipment, cleaning equipment, landscape irrigation, humidification equipment, hydraulic equipment, testing equipment, water plant, the work pressure in the pipeline 6.4 --- 100MPa system.
Features:
Spool is stainless steel piston and piston rings will not be stuck impurities in the medium, dynamic sealing performance and long life; piston valve chamber with the metal does not produce direct friction, the valve installed to the limit; authoritarian coil, easily burned ; for a long time to restart the stopped action, action as sensitive; minimum start working pressure 0.5MPa.
Main technical parameters:
|
Specifications: |
DN0.5 ~ DN200 |
|
Body material: |
Stainless Steel |
|
Medium: |
Water, gas, oil, steam, gas, corrosive fluids |
|
Temperature range: |
-100 ~ +200 ℃ |
|
Media Viscosity: |
Less than 50C St (greater than the time to be customized) |
|
Protection performance: |
Waterproof, explosion-proof (Exd IICT5), anti-corrosion |
|
Wiring: |
Terminal Block Type; lead type; male |
|
Control: |
Normally open, normally closed |
|
Power supply voltage: |
DC12 ~ 127V; AC36 ~ 380V |
|
Connection: |
Thread, flange (male and special interfaces or add custom adapter) |
|
Leakage: |
Zero |
How it works:
NC: When the coil is energized, the pilot spool pull the pilot hole to open, pressure relief valve on the chamber, the piston on the lower chamber medium pressure to promote, the electromagnetic valve is opened; When the coil power, the pilot valve by the spring return, pilot hole closed throttle valve chamber pressurized by the piston return spring and thrust, the electromagnetic valve is closed.
Normally Open: When the coil is energized, the pilot hole closed, the valve chamber and pressurized by the piston return spring throttle thrust, the electromagnetic valve is closed. When the coil power, the pilot valve by the spring return, pilot hole open, pressure relief valve on the chamber, the piston on the lower chamber medium pressure to promote the solenoid valve open.
Size:
|
DN |
Connection size
(D) |
D
(mm) |
L
(mm) |
L1
(mm) |
L2
(mm) |
H
(mm) |
H1
(mm) |
B
(mm) |
|
DN15 |
G1/2 |
28 |
95 |
20 |
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