2013年9月23日星期一

To change radiator valve

A thermostatic radiator valve (TRV) is an automatic regulation valve that controls the flow of hot water through heating radiators based on the temperature in the room in which it is located. The valve typically features an adjustable temperature setting that allows occupants to select a comfortable temperature in their environment and automatically adjusts the internal mechanism, thereby closing or opening it as required. Radiator systems fitted with TRVs not only deliver convenient hands-off temperature control but also make hot water systems more efficient with significant cost and CO2 emission savings. TRVs may be used on most radiators, towel dryers, or convectors and are available in off-the-shelf or custom units.
The easiest way to fix a damaged radiator valve is to either clean it or swap it out for a new one. Changing it involves turning off the water source, placing the pan under each location that you work on, draining the radiator, closing all valves that were previously opened, and finally Use the channel lock wrench to remove the small section of pipe that goes into the radiator and replace it with the new one that comes with the new radiator valve kit.
Changing a radiator valve on your car can be hard and dirty work. However, if you follow these steps carefully, there should be no problems replacing the valve.
The valve sensor consists of a metal bulb filled with a heat sensitive substance such as wax. This substance will contract and expand according to the ambient temperature it is exposed to, and it is this motion which activates the rest of the mechanism. An adjustable temperature dial dictates the time taken for the sensor bulb motion to act on the mechanism, thereby allowing for a range of ambient temperature settings to be chosen. When the bulb expansion does act on the mechanism, it opens or closes the valve spindle. In this way, the valve supplies hot water to the radiator when the temperature in the room drops below the selected value and shuts it off again once the temperature has been restored.
1、Take off the radiator cap and turn the drain valve that is at the bottom of the radiator with a wrench to drain the radiator.
2、 Find the radiator hose and take it off with a flathead screwdriver.
3、 Expose the thermostat by removing the bolts on both sides of the thermostat with a wrench.
4、 Scrape the bottom of the thermostat housing and where the housing meets the surface with a gasket scraper.
5、 Put on the new thermostat and then once in place, on both sides of the newly replaced thermostat gasket, put gasket sealer on. Put the housing over the thermostat and then tighten the bolts with a wrench.
6、 Put the upper radiator hose on the housing of the thermostat and tighten the clamp with a screwdriver. Make sure to close the radiator's drain valve by turning it clockwise with a wrench and fill the radiator with antifreeze.
7、 Put the radiator cap back on.
Edit by TENGFENG COPPER INDUSTRY COMPANY NINGBO OFFICE
http://www.springcheckvalve.com/news/To-change-radiator-valve.htm

2013年9月12日星期四

The M Series line of ball valves

Cimberio Valve, Malvern, Pa., offers the cimPUSH line of push-to-connect ball valves. The valves connect to PEX, CPVC and copper pipes in any combination without tools, glue or solder.
The M Series line of ball valves comprises four configurations for steam and other industrial fluids. The valves features a blow-out proof stem, a modular seat/seal assembly for smooth operation at high pressures, a integrated seat and body gasket, and a floating ball for tight shutoff under ANSI Class VI.
Designed for a range of applications handling water, air, food products, gases, petroleum products or aggressive chemicals, these ball valves are made in sizes from 3/8- to 6-in., and are available with pneumatic actuators, electric motor operators, or manual control with levers and hand wheel gearboxes. Both 2- and 3-way models are made with operating pressures from 0 to 3000 psig.
High Pressure Equipment Co. (HIP) has introduced a 0.5 in. orifice size line of trunion-style ball valves designed specifically for severe-duty applications. Available in two-way and three-way configurations, the 0.5 in. valve has a pressure rating of 10,000 psi and offers the same features as HiP's 0.187 and 0.375 in. trunion ball valves. All three sizes connect to a wide range of tube sizes and have 316 stainless-steel constructions. With the trunion-style closure, these valves are used for liquid shut-off or gas flow in severe duty applications.
Recent steps in ball valve technology may be attributed, in part, to advances in material technology, particularly for valve seats and O-rings. Anyone selecting a ball valve should carefully match the valve's operating conditions to the appropriate seat material.
Rated for full vacuum service, this cross port ball valve's 3-way design permits multiple flow patterns because of the crossed flow corridors within the ball. It is available in sizes of 1/2- to 2-in., and is manufactured from PVC, CPVC, PP or PVDF, making it well-suited for handling highly corrosive liquids in a variety of industries.
Its design achieves four flow patterns through three ports using one valve, which permits flow from common port to left or right ports to "off" position. To accomplish this in past would would have required two different valve body styles and two different ball configurations. Available with electric or pneumatic actuators, the valve has "L" port as standard and Tee Double L porting optional. Asahi/America Inc, Maiden, MA.