Level Sight Glass
REFMEX Level Sight Glasses are fabricated in borosilicate 3.3 crystal modified, and specially designed for industrial purposes in tanks and high pressure equipment.
CHEMICAL COMPOSITION
• Minimum content of SiO2 ... ... ... ... ... ... ... ... .80%
• Minimum content of B2O3 ... ... ... ... ... ... ... .. 13%
• Maximum Na2O + K2O ... ... ... ... .4%
PHYSICAL CHARACTERISTICS:
• A) Faces maxium marchine distortions .005 "
• B) Parallelism between surfaces
• C) Tight dimencional tolerances
• D) Alignment of the crystalline structure by heat treatment annealing and Warm
CHEMICAL CHARACTERISTICS
• Acid resistance ... ... .... (ISO 1776 DIN 12116) Class S1
• Alkalis Resistance ... .... (ISO 719) Class A2
• Water Resistance ... ... ... ... ... (ISO 696) HGB 1
They can be fabricated flat, reflex, and high pressure.
TECHNICAL SPECIFICATIONS:
OPERATIONAL PARAMETERS
| No | LENGHT | STEAM BOILER |
STEAM BOILER MICA USED | SERVICE UP TO 158ºF |
| 1 | 4-1/2 | 400PSI | 800PSI | 1500PSI |
| 2 | 5-1/2 | 400PSI | 800PSI | 1500PSI |
| 3 | 6-1/2 | 400PSI | 800PSI | 1500PSI |
| 4 | 7-1/2 | 400PSI | 800PSI | 1500PSI |
| 5 | 8-5/8 | 400PSI | 800PSI | 1500PSI |
| 6 | 9-7/8 | 400PSI | 800PSI | 1500PSI |
| 7 | 11 | 400PSI | 800PSI | 1500PSI |
| 8 | 12-5/8 | 400PSI | 800PSI | 1500PSI |
| 9 | 13-3/8 | 400PSI | 800PSI | 1500PSI |
The FLAT SIGH GLASSES AND HIGHT PRESSURE SIGHT GLASSES can use as protection to help prevent chemical corrosion, mainly alkaline, protective micas, these are made of a natural element called muscovite mica, which protects the glass from direct contact with corrosive fluids, extending the sight glass life.
The REFLEX SIGHT GLASSES are striated on the side which makes contact with the fluid. This has the objective of increasing the viewing distance of the level, because striated marks on the glass in contact with the light forms a bright mirror except for the part in contact with the liquid in which disappears.
