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cryogenic valves

  • A Guide to Industrial Valves - Types & Functions

    Cylinder Valves are typically the most useful component of any industrial equipment or machine. Thus, it is important to understand their functionality and types in detail. Although these are tiny items, valves control the working of most of the machines. The mechanical device blocks a pipe partially or fully to change the amount of liquid or gas that passes through it. This small but critical function of the valves cannot be neglected as a slight more or less amount of substance released from the valve can lead to hazardous disasters.

    Industrial valves regulate the pressure of gas or liquid it releases so that an apt amount is delivered and the best output is delivered. They are often made from plastic or metal and consist of different parts – the stem, the body, bonnet, trim, actuator, and packing. It is essential that all the parts of the valves are strictly adhered to each other at the right places as any defect may lead to serious accidents and even explosions.

    Here are some important valves:

    Check valves: Check Valves are used to allow a proper flow of air, liquids and steam/condense gases. They are flow sensitive and rely on the line fluid to open or close. Some valves like swing check valves allow automatically close when the pressure decreases and closes fully when the flow reaches to zero. These valves prevent the reverse flow in a piping system.

    Gas/Cryo Valves Gas/Cryo Valves : Series LPG Valves

    Gas/Cryo Valves: Specially designed for allowing the flow of cryogenic gases including Oxygen, LNG, and Nitrogen. The cryogenic valves ensure you durability and safety. Sherwood and Rego cryo valves are the best for use. Series LPG valves are popular cryo valves that are used to forklift trucks, engine fuel installations, RVs and over 1000 gallon water capacity tanks.

    Gate Valves: These valves can be opened or closed just by lowering the metal gates across them. However, you will have to completely open or close the valve as they may not function properly while partially open.

    Needle Valves: Needle valves function precisely and are mostly found in car engines, carburetors, and central heating systems.

    Relief Valves: These are tamper resistant valves designed for use with gases not only fluids. The relief valves are used in cryogenic relief containers and vapor line safety relief application.

    JTC Valve Sales

    JTC Valve Sales is a trusted dealer of all types of industrial valves, cluster valves, filler and unloading valves and compressed gas regulators. Our research and knowledge definitely add up value to our products. We understand that industrial products demand high-quality standards and so, adhere to the strictest automated testing processes before displaying products for sale.

    In case you have any queries, please contact us at 440-346-1259.

  • How to Replace a Shutoff Valve

    Shut-Off Valves Shut-Off Valves

    Shut off valves are also called as cut-out cocks. These types of valves have a wide application in almost all services. Shut off valves are widely used in air supply applications, drinking water application, oils and gas application, liquid fill or vent valve on cryogenic tanks as well as LNG fueling either as a protection device or as a control device.

    The shut off valves are of three types, the sweat valve, the threaded valve and the compression valve. Shut off valvesundergo frequent handling, which may cause problems after years of use. Rather than repairing the valve, it is beneficial to replace the shutoff valve so that the leakage, mineral deposit and corrosion problem does not reappear for years.

    Tools required to replace cryogenic valves

    • Pliers
    • Wrench
    • Soldering torch
    • Shut-off valve

    Here is a step by step guide to replace the shutoff valve

    1. Shut-off valves are usually connected to copper pipe by compression fitting or sweat fitting. Shut off the water by shutting the shutoff valve. Shut the electricity by shutting the circuit breakers. Drain out the water by opening the faucet. Remove the supply tube and replace the shutoff valve
    2. Identify the type of valve fitting. If it is a sweat valve, hold the valve with pliers, unscrew the valve system by loosening the packing nut. Remove the washer if it's stuck in the seat. Use the flame, if required to remove the valve
    3. Clean the tubing, solder the valve and sand off the traces of the solder
    4. To replace a compression shutoff valve, cut the sleeve at an angle and hack using short strokes so as not to cut the copper tubing. Remove the valve body with a wrench. Loosen the nuts, then pull off the valve from the copper tubing
    5. Slide the new compression nut and the sleeve onto the tubing. Insert the shutoff valve and screw the nut snugly into the new valve. Follow the instruction of the manufacturer as to how many turns the nut should be tightened

    Shut off valves extended stem valves are available at JTC valve sales. These extended stem valves are designed to be used as trycock valve or hose drain valve on cryogenic tanks. The one piece stainless steel stem, union bonnet and conical seat design allow the shutoff valve to work efficiently at pressures up to 600 psig at temperature ranging from -320 degree F to +165 degree F. This shutoff valve-extended stem is cleaned for oxygen service as per CGA G-4.1.

    JTC valve sales offers a complete range of valves, regulators and hoses for every application. When you buy from this leading portal, you not only get free shipping in the continental USA, but highly reliable, factory tested products that are made in the USA.

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