The steam pressure reducing valve adopts the opening degree of the opening and closing member in the control valve body to adjust the flow rate of the medium, reduces the pressure of the medium, and adjusts the opening degree of the opening and closing member by the action of the pressure behind the valve, so that the pressure behind the valve is kept constant. Within the scope of the import pressure, keep the outlet pressure within the set range and protect the subsequent life production equipment.
Steam pressure reducing valve
Steam pressure reducing valve installation precautions
1. The support cannot be added directly to the valve or actuator;
2. If a bypass pipe is installed, the bypass pipe must be connected downstream of the pressure point after the valve, and the bypass pipe should be equipped with a shut-off valve;
3. No instrument (such as self-operated temperature control valve or globe valve) can be installed on the pipe section between the steam pressure reducing valve and the pressure tapping point;
4. After the steam pressure reducing valve, try to keep a certain straight pipe section;
Steam pressure reducing valve installation instructions
1. The instructions must be read carefully before installation. The relevant power supply must be cut off and must be installed by a professional technician.
2. The direction of water flow must be the same as the direction of the arrow on the valve body.
3. The valve body must be located above the coil water tray to ensure that it will fall into the water tray when dripping occurs.
4. The valve body and driver must be installed in the vertical direction within ±60 °C, and there should be at least 30 mm space above it for disassembly.
5, and the surrounding pipelines, equipment, buildings must maintain sufficient maintenance and operation space, must be installed in the place where maintenance personnel can reach through the manhole.
6. The valve can be installed only after the valve body is installed and the pipeline is pressure tested.
7. If the drive has been installed on the valve body, the drive cannot be applied during the installation and debugging process, otherwise the drive will be damaged.
Steam pressure reducing valve features
Steam pressure reducing valves are important actuator units in industrial Automation process control. With the increasing degree of automation in the industrial field, more and more applications are being applied in various industrial production fields. Compared with the traditional pneumatic regulating valve, it has obvious advantages: energy saving (only consumes electricity when working), environmental protection (no carbon emission), quick and convenient installation.
1. The direction of action of the fluid on the spool is in the open state, so the working stability is good.
2. In addition to the guide bushing at the bonnet, the side of the valve core and the inner surface of the valve seat also have a guiding effect, the guiding area is large, and the work is reliable.
3. The servo amplifier adopts deep dynamic negative feedback to improve the adjustment accuracy.
4, electric operator has many forms, can be applied to 4 ~ 20mA.DC or 0 ~ 10mA.DC.
5. The electronic type electric control valve can directly control the opening of the valve by the current signal, without the need of a servo amplifier.
6. Save on automation investment. Compared with single-seat, two-seat or sleeve control valves, the same system can save one valve, simplify the system and save investment.
7. The bellows seal type forms a complete seal on the moving valve stem to block the leakage of the fluid.
Arm Portable CMM
Arm Portable CMM
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