The valve body of the straight-through type pneumatic regulating valve has an S streamlined channel, and the inner wall is smooth and the cross section is equal. It has the characteristics of small pressure loss, large flow and stable flow channel.
There are 4 types of bonnet of pneumatic control valve
High temperature type
Low temperature elongation
Metal bellows seal type
| Normal temperature valve cover. The material of the valve cover is the same as the valve body. It plays the role of closing the valve body and connecting the actuator. |
Working temperature: -30 ℃ to + 260 ℃
| The bonnet is specially designed for high-temperature conditions. The contact area between the bonnet and the surrounding air is increased by the heat sink, which plays a role of heat dissipation. It can effectively protect the packing and the actuator. |
Operating temperature: +230 to + 530 ° C
| It is suitable for medium at low temperature (such as liquid oxygen, liquid nitrogen), and can effectively protect the filler and actuator. The standard material is 304 or 316, and materials with different expansion coefficients can be used according to the working conditions. |
Working temperature: -196 ℃ to + 45 ℃
| The valve cover is equipped with a stainless steel bellows assembly, which isolates the medium from the outside world and ensures that the valve stem moves up and down. Make sure that there is no waste or environmental pollution caused by media leakage. |
Working temperature: -60 ° C to + 530 ° C
PCV10P cage type single seat regulating valve: top-oriented unbalanced structure, suitable for occasions where the pressure difference in working conditions is small, the valve cage adopts a compact valve seat design and a quick release cage structure.
PCV10T sleeve single seat regulating valve: Sleeve-guided, pressure-balanced spool, suitable for occasions with large pressure differences, using a balance seal ring instead of the upper seat to improve the leakage level of the sleeve valve.
PCV10G sleeve double seat regulating valve: sleeve-oriented, pressure-balanced spool, which is used in places with low leakage requirements, and has a wider temperature range.
PCV10D multi-hole single-seat regulating valve: sleeve-oriented, pressure-balanced spool, suitable for applications with large pressure differences, reducing flow rate and reducing noise.
PCV10S multi-stage pressure reducing regulator: sleeve-oriented, pressure-balanced valve core, suitable for occasions with large pressure differences and flash evaporation and cavitation under working conditions.
Configure accessories as required
Common pneumatic control valve accessories are positioner, solenoid valve, filter pressure reducing valve, hand wheel mechanism, limit switch, valve position transmitter, storage cylinder, air control valve, speed increaser (amplifier), lock-up valve, etc. Different accessories have different uses, and you need to choose the right accessories according to different control purposes.
No matter what kind of packaging, the principle is to protect the pneumatic control valve from damage.
。 1. Packaging method The packaging materials of the finished products are wooden cases .
2. Packaging requirements The warehouse clerk shall perform delivery inspection in accordance with the "Product Delivery Sheet" and "Final Inspection and Test Operation Specifications" before packaging, and confirm the packaging before packaging.
a Before packing the valve, carefully check whether the model, specifications, quantity and certificate of compliance with the packing list.
b Single product packed in wooden cases. For heavier, medium-sized products. When packing, use foam or other methods to prevent the product from shaking.
c Multiple products packed in wooden cases. For small size, light weight and large number of products. Fill with foam or other soft materials when packing to prevent the products from colliding with each other during transportation.
d The iron box should be used around the wooden box to prevent the wooden box from being damaged during transportation.
e Each box should be accompanied by relevant technical documents such as the product certificate, packing list, product inspection report (specified in the contract), material quality certificate (specified in the contract), product specifications (specified in the contract), and fixed in the box Somewhere.
f The shipping marks outside the wooden box (address of consignee, address of consignee, consignor, etc.) should be neatly written and clear.