Fusible plug refrigeration

In summary, the fusible plug is a reliable safety device whose primary purpose is to protect a refrigeration system against explosion or fire. To avoid damage of compressor due to overheat of refrigerant, fusible plugs are required This application can be found in air conditioning, heat pump, automotive, truck container refrigeration , etc. When the pressure of the refrigerant reaches about 3MPa, the temperature will rise to the melting point of the fusible alloy. From my point of view, fusible plug is still one of the most popular and reliable means of protections. Nothing will last for ever.

This hole is sealed with a metal of low melting point that flows away if a pre-determine high temperature is reached.

But replace the fusible plug with the proper one. Log-in or register for your pricing. Well there are probably more condensing units for refrigeration on the inside of a building then outside. Unit General Safety Practices. When soldering a replacement fitting in a refrigeration circuit, it is important that.

Devices for the protection from possible over-pressures, compared to the operating conditions for which they were designe of the main components of a refrigeration or air-conditioning system. A fusible plug is made from. Devices available in a wide range of discharge capacities, set pressures, connections.

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When the water level falls below the fusible plug , the plug gets uncovered from water. Find great deals on eBay for fusible plug. SAFLEX FUSIBLE PLUG -IN DUCT. Furthermore, if no liquid is in the vessel for some reason, the fusible plug cannot sense a high pressure.

Manufacturer of fusible plugs for refrigeration applications. F melting temperature, and 0. Only logged in customers who have purchased this product may leave a review. The safety valves and fusible plugs are used to protect the refrigeration system from any damage due to over pressure.

Based on their design, they are classified as follows. Copper nipples are standard on vertical and models. Controlled hydrogen copper brazing process provides the ultimate in cleanliness and uniform strength. Pressure Vessel Protection 9. A receiver with fusible plug , liquid shutoff valve and charging port is also standard.

Receiver with fusible plug and liquid shut-off valve. SAFETY DEVICES FOR REFRIGERATING SYSTEMS. Fusible loop fire protection:. Get the lowest prices on Carrier EK02JA1Replacement Parts everyday at FurnacePartSource. Most orders ship same day.

The present invention provides a fusible plug which does not contain the harmful components Cd or Pb, with which the alloy is not forced out of the fusible plug even when used for long periods as a safety device for refrigeration equipment, and which has a high mechanical strength such as creep strength. HVAC parts at the lowest cost. International Mechanical Code. Printing functionality is restricted without a premiumACCESS subscription. LIEBERT Replacement Parts.

After discovering a melted fusible plug , the refrigeration technician concludes that the temperature of the system must have exceeded A. Inc GST Prices if shown are an indication only because of currency fluctuations and prices being discounted because of bulk purchases. Prevent possible explosion by relieving pressure caused by fire, coil blockage, or overheating of unit. Fundamentals of safety relief of systems.

Applies to pressure vessels. In industrial refrigeration systems, the use of centrifugal pumps for. These requirements cover unit coolers intended for use in refrigerators, freezers, refrigerated warehouses, walk-in coolers, and the like.

If you have any questions regarding this product, please use the HVAC. Contractor Directory to connect with a trusted contractor in your area. The size of the discharge pipe from a pressure relief device or fusible plug shall not be less. Refrigeration compressors and condensing units. Product Code: JBIFP-C-210.

An alloy for a fusible plug according to the present invention can be used not only for a fusible plug used as a protective device for refrigeration equipment but can also be used as an alloy for a sprinkler which, like a fusible plug , is always subjected to pressure. Unlike fusible plugs , these safety valves are operated by pressure and not temperature, and therefore guarantee precision and reliability at calibrated values. The fusible plug consists of two hollow guns and one conical plug shown as figure.

A hollow gun metal body is screwed to the fire box crown plate of boiler. Another hollow gun metal is screwed to the first body. Third plug is made from copper is locked with the second plug by pouring metal in to the grooves provided on the both plugs.

GRUNER BRASS FITTINGS CORP. I have just started working on an oil and gas project. So need your help to understand the system. I need clarity in following things: 1. Components of fusible plug loop system. Criteria to choose fusible plugs.

Other parts for refrigeration equipments listed in Heading No. A range of eutectic melting temperatures also is offered.