Dwyer 可视流量指示器 SFI-700系列
SFI-700系列 可视流量观察器采用高质量的材料制造，经过严格的安全测试来保证长期的可靠稳定性能，经济实用。700系列采用螺纹连接，它为透明管式的观察器，有黄铜或316不锈钢材质。它的特点是在有一个红色醒目的旋叶，可以从任何方向观察液体流动状况。它还有自洁功能，无需拆卸，只需旋转透明管，就能将显示管内部产生的脏污擦干净，非常便于维护。
测量气体或液体流量；连接尺寸1/4- 6英寸；可视窗或管道两种形式；螺纹或法兰两种连接

Service: Compatible Gases And Liquids.
Wetted Materials: Tube: Tempered Borosilicate; Body: Brass Or 316 SS; Gasket: Fluoroelastomer; Indicator: Acetal.
Temperature Limit: 212°F (100°C).
Pressure Limit: 230 Psig (15.86).
Connections: Threaded.

Model Description
SFI-700-1 Sight flow indicator, 1" body, 4.875" L x 2.750" H (124 x 70 mm), 5.1 lb (2.3 kg).
SFI-700-1/2 Sight flow indicator, 1/2" body, 3.688" L x 2.250" H (94 x 57 mm), 2.4 lb (1.1 kg).
SFI-700-1/4 Sight flow indicator, 1/4" body, 2.750" L x 1.500" H (70 x 38 mm), 0.9 lb (0.4 kg).
SFI-700-1-1/2 Sight flow indicator, 1-1/2" body, 4.875" L x 2.750" H (124 x 70 mm), 5.1 lb (2.3 kg).
SFI-700-1-1/4 Sight flow indicator, 1-1/4" body, 4.875" L x 2.750" H (124 x 70 mm), 5.1 lb (2.3 kg).
SFI-700-3/4 Sight flow indicator, 3/4" body, 3.688" L x 2.250" H (94 x 57 mm), 2.4 lb (1.1 kg).
SFI-700-3/8 Sight flow indicator, 3/8" body, 2.750" L x 1.500" H (70 x 38 mm), 0.9 lb (0.4 kg).