Misalignment unions for vessel connection are available. Familiarity with this disquieting occurrence was considered so important that a glass would often be smashed deliberately while a trainee driver was on the footplate, to give him practice in fitting a new tube. Since the glass is bonded to the retaining flange at the factory, installation is a simple one-man job. Structurally strong cylindrical tank with integral rib construction. For more information on the different types of sight glasses, please refer to How it works and Documentation.
As the magnet passes up and down behind the vanes it cause them to rotate, displaying one colour for the region containing the liquid and another for the region containing gas. After it is melted into the metal ring, the greater contraction of the metal ring imposes bulk compression on the glass. For observation into such process chambers or boilers, sight glasses mounted onto flange connections are ideal. The provided Buna-N o-ring fits between the window sight and tank, preventing leakage past the threads. Standard lengths are 1', 2', 3', 4'; custom lengths available. They can be used to display fluid motion or mechanical movements, as well as to view and perform tests in a safe enclosure.
Due to the different refraction of the red and green light, the liquid region appears green to the operator, while the gas region appears red. A special glass tube is fixed in the shield tube so that it is unaffected by potential stresses in the pipelines. One interesting side note is that if the flow indicator is completely filled with a homogeneous fluid, it is impossible to tell if the fluid is flowing or stationary. The cost of such a failure will greatly exceed the acquisition costs of the sight glass window. With such designs, insufficient torque on the bolts will result in leaks, but excessive torque will cause glass failure. The only difference is that the stress bearing flange is forged instead of cast. In some locomotives where the boiler is operated at very high pressures, the tube itself would be made of metal-reinforced toughened glass.
The sight tube is Borosilicate glass and a wide option of elastomers are available. The connections are placed opposite each other to enable positioning of the glass very close to the internal wall of the tube. The National Board of Boiler and Pressure Vessel Inspectors recommends a daily testing procedure described by the American National Standards Institute, chapter 2 part I-204. They are easy to read from a distance and can be used in addition to a switch or alarm in a system. In conventional sight glasses that are sandwiched between two flanges, this stress is provided by the bolts of the flanges directed through the planar surfaces of the glass, which usually results in far higher deviatoric Von Mises stresses around the sealing gaskets than at the unsupported center of the glass. Alfa Laval's hygienic equipment combines high performance with gentle handling to preserve sensitive ingredients. In fact, this tensile stress at the glass edge is one of the limiting design parameter for this type of window; if geometric parameters are not within a certain range of values, the tensile stress accumulated at the glass edge will result in a macroscopic crack.
Offer not valid on gift cards, gift certificates, previous purchases, or charitable donations and may not be valid on all merchandise. We also manufacture Other types of Level Gauges such as : Transparent, Reflex, Magnetic, Tubular, Types. We carry tank truck flanges, gaskets and sight glasses for your petroleum tanker. The One Minute Test The injection rate is checked by closing a valve between the gauge and chemical storage tank and observing the change in fluid height in one minute. Heat is applied to a glass disc and its surrounding steel ring, causing a fusion of the materials.
Savings will automatically reflect in shopping cart with the purchase of qualifying merchandise. The Model S sight glass is an industry cost leader. In the region that is contact with the gas, most of the light is reflected from the surface of one groove to the next and back towards the operator, appearing silvery white. Offer not valid on all or select products in the following categories: live pets; canned, fresh or frozen foods; select cat litters. This usually has a patterned backplate to make the magnifying effect of the water in the tube more obvious and so allow for easier reading. In the region that is in contact with the liquid, most of the light is refracted into the liquid causing this region to appear almost black to the operator. Sight windows can be classified according to their sealing mechanisms.
Savings will automatically reflect in the shopping cart with the purchase of qualifying merchandise. Gauge Features The sight tube of the 5700 Series Level Gauge is completely protected. There is little maintenance required and all repairs can be done without disturbing the system. The gaskets have to undergo some degree of plastic deformation in order to fill in the microscopic crevices in the glass and flange surfaces in order to create an effective seal. Therefore, it is common practice to include a moving piece whose motion would indicate flow.
The body of this window sight is brass. It consists of a tube with two screw connections for the glass. The sight glass can be fitted with an optional miniVision light fitting. The following standard models are available for immediate ordering at 800 624-9043 click on any listing for a product description, engineering details, materials of construction, and unit image. Figure 1 below shows a typical see-through liquid level gauge.
Save 5% on your initial order and 5% on recurring orders. Liquid level gauges are industrial meters that are used to determine the level of a liquid in a process tank. Our capabilities are unbeatable in tanks under 10 gallons. End Finish: Carborundum saw cut Items to be returned must be approved by Power Plus International, and may be subjected to a restocking fee Notice: Due to the uncontrollable metal costs, all prices and delivery times are subject to change on a daily basis. Sight gauge can be rotated for visibility.