7000系列 Spirahelic直接驅動壓力表-德威爾Dwyer
7000系列 Spirahelic® 直接驅動壓力表是我們應軍方的要求獨立開發的高防震的高精度壓力表，采用了獨特的三重螺旋纏繞的波登管等技術，Spirahelic® 直接驅動壓力表重量輕，采用精密制造的平衡式指針，減少了摩擦，改善了靈敏度和精度，它能夠終身保持ASME 2A或3A的精度。
它有軸向和徑向可現場選擇的過程連接方式，于盤面安裝，采用1/4”NPT內螺紋和1/2”NPT外螺紋的接頭。防震的工程塑料外殼尺寸符合ASME B40.1標準，當需要時，可選擇正負壓組合量程。
Service: Compatible gases & liquids.
Wetted Materials: Inconel® X-750 alloy Bourdon tube, type 316L SS connection block.
Housing: Black polycarbonate case and clear acrylic cover.
Accuracy: Grade 2A (0.5% FS).
Pressure Limit: 150% of full scale. Gage will maintain its specifications for overpressures up to 150% maximum range. Normal operation should be between 25% and 75% of full scale.
Temperature Limits: -65 to 180°F (-53.9 to 82.2°C).
Sizes: 4-1/2" dial face (114.3 mm), 8-1/2" dial face (215.9 mm) - Design conforms to ASME B40.1.
Process Connections: Two 1/4" female NPT field selectable back or bottom connection.
Weight: 4-1/2" dial face: 16.3 oz (462.1 g); 8-1/2" dial face: 27.3 oz (773.9 g).
Standard Accessory: One 1/4" male NPT stainless steel plug.
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