Swivel sight glass is also called oil indicator,  petroleum indicator. It can be used to observe whether the pipeline of fueling machine is filled with liquid, and its hose can be turned but sight glass cannot. Performance: pressure resistance 0.3Mpa. Surface treatment: decorative chromeplating. Using life of hose is prolonged.
 Swivel sight glass is also called oil indicator,  petroleum indicator. It can be used to observe whether the pipeline of fueling machine is filled with liquid, and its hose can be turned but sight glass cannot. Performance: pressure resistance 0.3Mpa. Surface treatment: decorative chromeplating. Using life of hose is prolonged.
 This single-side sight glass is also called single-window sight glass, oil indicator, petroleum indicator. Features: 1) Used to observe whether the pipeline of fueling machine is filled with oil, and it is fixed on the side of fueling machine 2) Inlet is connected with the oil discharge pipe of gauge and the outlet is with the hose 3) The material of main body is 20# 4) Surface treatment applies decorative chromeplating 5) Sight side is made of quartz glass of 5mm thick 6) Special installation dimension shall be specified in the order 7) Economic, firm, beautiful and decent 8) Observing window shall be put forward in the order 9) The choice of back cap or flat pipe nozzle shall be specified in the order.

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• Swivel Sight Gla
• Swivel Sight Gla
• Single-side Sigh

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