Product Description

GrandMfg® Brass Sight Glass plugs,Round observation ports, NPT sight glass windows, reservoir oil sight glass, hydraulic tank oil sight glass

Body material: aluminum, brass, PC, PPMA and steel

 Glass:  Real glass 2 mm to 5 mm thickness.

 O-Ring:  Viton O rings

 Size:  M10 to M42, 1/2 inch to 2 inch

 Thread Type: NPTF, NPT, UNC, UNF, Metric and BSP (G thread)

Operate Temperature: -20 Celsius degree to 120 Celsius degree

Operate Pressure: 5-10 Bar or 0.5MPa to 1 MPa.

MOQ: 2000 Pcs each size

Delivery time: 20 days.

Payment:  T/T

Usage:  Pump, Thin-wall container, Radiator,Hydraulicreservoir, receivers,Gearboxes, Speed Reducer, Compressor and Power Transmission.

Different company have different requirements, OEM Service is welcome.

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