4000系列 Capsuhelic液用差壓表-德威爾Dwyer
4000系列 Capsuhelic®液用差壓表可快速，準確地指示差壓，它能用于指示液體過濾器兩端的差壓，槽罐的液位，或用于其它任何需要正壓，負壓或差壓測量的場合。
采用了可靠耐用的Magnehelic&微差壓表的設計理念，結構簡單可靠，機芯無磨損，可精確讀數低到0.5英寸水柱，采用了密封膜盒，可在靜壓到500psig時,還可測出低于0.1英寸水拄的差壓。
精密的膜盒測量元件無需充液，可用于室外。可外部調整零點和量程，在校準或維護時，無需拆卸儀表。
注：可以用于氫氣，但在訂購時須選用Buna-N丁氰橡膠隔膜，工作壓力在35psi。
Service: Aluminum Case: Air and compatible gases and oil based liquids. Brass Case: Air and compatible gases and water based liquids.
Wetted Materials: Consult factory.
Housing: Die cast aluminum with impregnated hard coating, standard. Optional forged brass housing is required for water or water based fluids.Special material diaphragms available, contact factory.
Accuracy: ±3% of FS at 70°F (21.1°C). (±2% on 4000S models, ±4% on 4200, 4210, 4215, 4220, 4300, 4400, and 4500).
Pressure Limits: -20" Hg to 500 psig. (-0.677 bar to 34.4 bar).
Temperature Limits: 20 to 200°F (-6.67 to 93.3°C).
Size: 4" (101.6 mm) diameter dial face.
Mounting Orientation: Diaphragm in vertical position. Consult factory for other position orientations.
Process Connections: 1/4" female NPT high and low pressure taps, duplicated - one pair top for air and gas, and one pair bottom for liquids.
Weight: 3 lb, 3 oz (1.45 kg) aluminum case; 7 lb, 13 oz (3.54 kg) brass case.
Standard Accessories: Two 1/4" NPT plugs for duplicate pressure taps, four flush mounting adapters with screws and four surface mounting screws.
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