Stainless Steel Magnetic Level Gauge

Carbon Steel Sleeve Packed Water Level Gauge

Rating : Max. BOP 350 PSIG (24.1 Bar) at 800 F (427 C)

Material : Carbon Steel

Description : Consisting of Steam Arm, Water Arm, Drain Cock, Left & Right Hand Type

Ends : Flanged

Specials : IBR

Item Code : BM000053, BM000054

Size : 20mm

Bronze Sleeve Packed Water Level Gauge

Rating : Max. BOP 250 PSIG (17.24 Bar) at 435 F (225 C)

Material : Bronze

Description : Consisting of Steam Arm, Water Arm, Drain Cock, Left & Right Hand Type

Ends : Screwed

Specials : IBR

Item Code : BM000057, BM000058

Size : 15mm

Notes :

Available Valve Size : 15mm to 20mm

Bronze Sleeve Packed Water Level Gauge

Rating : Max. BOP 250 PSIG (17.24 Bar) at 435 F (225 C)

Material : Bronze

Description : Consisting of Steam Arm, Water Arm, Drain Cock, Left & Right Hand Type

Ends : Flanged

Specials : IBR

Item Code : BM000055, BM000056

Size : 15mm

 

Notes :

Available Valve Size : 15mm to 20mm

Reflex Level Gauge
WORKING PRINCIPLE
Reflex glass level gauges working principle is based on the light refraction and reflection laws.Reflex Level GaugeReflex glass level gauges use glasses having the face fitted towards the chamber shaped to have prismatic grooves with section angle of 90�°. When in operation, the chamber is filled with liquid in the lower zone and gases or vapors in the upper zone; the liquid level is distinguished by different brightness of the glass in the liquid and in the gas/vapor zone. The reflex level gauges do not need a specific illumination: the day environmental light is enough. Only during the night an artificial light must be provided.

The different brightness in the two zones is obtained as explained below:

LIQUID ZONE
This zone appears quite dark when the gauge is in operation and lighted as above said.
Given the construction, most of the environmental light rays incident on the external face of the glass are quite perpendicular to said face and, therefore, not deviated by the glass. These rays reach the glass/liquid interface with an inclination of approx. 45�°. The critical angle glass/liquid is always superior to 45�°. Therefore the rays incident within the critical angle (practically the totality) are refracted within the liquid and, since the internal walls of the gauge chamber are not reflecting, the rays cannot be seen from the outside. In fact the zone will appear dark, nearly black, to the observer.

GAS/VAPOR ZONE
This zone appears almost silver bright to the observer.
As for the liquid zone, the light rays reach the glass/gas-vapor interface with an angle around 45�°. Since this angle is greater than glass/gas-vapor critical angle, the rays are not refracted , but totally reflected making 90�° turn, thus reaching the nearest glass/gas-vapor interface again with angle of 45�°. For same reason they will be reflected and turned by 90�° towards the observer, to whom the zone will appear silver bright.

APPLICATIONS
Reflex glass level gauges can be used in most of the cases and offer great advantages in terms of: low initial cost, low operating cost, easy level reading.

Reflex level gauges cannot be used in certain cases as for example:

when the separation level between two liquids has to be read (interface).

when besides the level indication, the observation of the liquid colour is required.

when the process fluid is high-pressure water steam, since in this case the glass must be protected from the solvent action of the boiler water by using mica shields.

when the process fluid is such that can corrode the glass (e.g. high temperature alkaline solutions or hydrofluoric acid), since ica shields or Polytrifluorochloroethylene shields must be used to protect the glass.

Fasteners are the general term of the class of mechanical parts used in fastening two or more parts (or components) into a whole. It is widely used in energy, electronics, electrical appliances, machinery, chemical, metallurgy, mold, hydraulic and other industries, at the same time, in various kinds of machinery, equipment, vehicles, ships, railway, bridge, construction, structure, tools, instruments, chemical, instruments and supplies, you can see all kinds of fasteners, is the most widely used mechanical foundation parts. It is characterized by a wide variety of variety specifications, different performance uses, and a very high degree of standardization, series, and generalization. Therefore, a class of fasteners that already have national standards is called standard fasteners, or simply standard ones.