Sight Glass

Sight Glass
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Application:
Sight glass widely used in all types of hermetic pump to observe the condition inside the container. Our sight glass is manufactured through high temperature sintering process. Thus, it has good air impermeability, high pressure withstanding capacity, and clear surface that ease the process of observation. Besides, we provide custom made service to our customer to manufacture sight glass that has extra high pressure withstanding ability with clear vision.

Parameter
Model Thread specification Windows size: mm Reflective film External size: mm Surface treatment Maximum pressure
SC-5-746B M30*1.5 Φ22.1-6mm Yes SW36*17.5 Electroless nickel 6MPa
SC-5-746B-1 1-1/8-18UNEF-2A Φ22.1-6mm No SW36*17.5 Electroless nickel 6MPa
SC-5-746C M27*1.5 Φ22.1-6mm Yes SW36*17.5 Electroless nickel 6MPa
SC-5-745 M24*1.5 Φ18-6mm No SW30*24 Electroless nickel 8MPa
SC-5-51 M22*1.0 Φ12.5-6mm No Φ22*9.8 Electroless nickel 10MPa
SC-5-570 3 hole flange Φ27.5-6mm Ripple-like window Φ22*7.2 Electroless nickel 5MPa
SC-5-570-4 4 hole flange Φ27.5-6mm Ripple-like window Φ22*7.2 Electroless nickel 5MPa

Materials:
Body:1215#
Glass: soda-lime glass

Sintering flow
  • 1. Goods receiving
  • 2. Incoming inspection
  • 3. Steel needle etching
  • 4. Oil removing on metal cap
  • 5. Assembly and sintering
  • 6. Air permeability inspection
  • 7. Chemical nickel plating
  • 8. Welding
  • 9. Silicon process
  • 10. Electrical property inspection
  • 11. Appearance inspection
  • 12. QA inspection
  • 13. Packaging
  • 14. Shipping

Surface treatment:
We adopt the environmental friendly electroplating technique, which is electroless nickel plating at 3-5 μm thickness. The nickel coat does not contain hazardous substances such as mercury, lead, cadmium and hexavalent chromium, reaching EU's standards. It passed the SGS environmental test.

  • Corrosive resistant ability: After a 12 hours 5% salt spray test, the rusty area must not exceed 5% of the total area according to the ISO9227-2017 test standard.
  • Salt spray test standard: GB/T2423.17,IEC60068-2-11,ISO4628-3

Index
water gauge parts, glass to metal seal

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