V Seth Sons

Supplier: Special grade tubes, pipes, flanges, fittings, nuts, studs, bolts, washers, valves & other raw materials. currently huge stock for below items. ss 310 seamless pipes, ss 904l seamless pipes, duplex 2205 seamless pipes. ss 304/304l cr coils round bars in duplex, super duplex, hastelloy, monel, inconel 625/825/925, and various grade

Supplier: Valves & forged fittings.

We offer stainless steel pressure gauge with/without liquid filled, Size from 1.5" - 10" Bottom or back mount connection Case material: Stainless Steel Core of gauge: Brass, Stainless steel We are supply over 100 different items pressure gauge movement, include: 1. Micro-pressure movement 2. Precision movement 3.Temperature and pressure movement 4. Seismic resistant movement 5. Double decks 6. Ordinary movement We also provide other pressure gauge and other pressure gauge accessories, like as dial plate, pointer and case etc. We also accept your OEM orders or develop any new parts as per your drawing or samples.

Surface diameter: 50 mm Link: radial Connecting thread: 1 / 4 npt Accuracy rating: 2.5 Use: stainless steel pressure gauge widely used in petroleum, chemicals, chemical fiber, metallurgy, power plants and other industrial sectors in the decay resistance is higher in the process of measuring the various fluid medium pressure, temperature at 85 íµ following gas liquids pressure applied to strong corrosive stainless steel components for the detection of medium and poor external corrosion environment. Can substitute the general pressure gauges.

Rugged Construction Easy mounting with flanged connection Continuous level monitoring (with use of transmitter 4-20mA output) Direct visible level indication No process fluid in contact with the level indicator Suitable for Interface level application Safe for high temperature, high pressure applications Safe for corrosive, toxic, flammable liquids Available in different range of materials Assured level indication without power supply

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.

High Static Pressure & Low Range Differential Pressure Gauge Application: Are used to measure pressure difference,typical applications include filters,liquid tanks pumps and sterilizing chambers etc.

Transparent Level Gauge Working Principle Transparent level gauges are always fitted with two plate transparent glasses between which the fluid is contained. The fluid level is indicated as the result of the different transparency of the two media and in some cases (for water steam), by conveying upwards on to the surface of separation (between liquid and gaseous substances) a source of light located at the back of the gauge, the rays of which are totally reflected down to the observer.Transparent Type Level Gauge We can provide the corresponding level glass, please refer to the related products. APPLICATIONS Transparent level gauges are suitable for almost all installations. In fact they permit: the use of mica shields or Polytrifluorochloroethylene shields to protect the glass from the corrosive action of the process fluid the observation of interface the observation of the liquid colour This instrument consists of a metal body, machined to have an internal chamber and one or more front windows (on each side of the gauge). On each window a special high resistance plate transparent glass is applied with sealing joint and metal cover plate hold by bolts and nuts. The chamber is connected to vessel with cross fittings and flanged, threaded or welded ends. Usually, between the instrument and its connecting ends, valves are fitted to consent shut-off piping and to disassemble the level gauge without to empty the vessel. Drain valves can also be fitted to cross fittings device. To avoid leakage in case of glass breakage, safety ball-check device can be provided in cross-fittings or shut-off valves. This kind of indicator is suitable for water/steam. To protect glass surfaces from corrosive action of the process fluid, Transparent Level Gauges can be fitted with Mica shields or Polytrifluorochloroethilene shields. This kind of indicator is suitable for liquids colorless and very fluid. In some case (i.e. for water / steam) the best reading is obtained by conveying upwards on the surface of separation (liquid/steam or vapor interface), a source of light, located on the back of the gauge, the rays of which are totally reflected down to the observer.