1. Product introduction
In the high-pressure grouting construction, the slurry flow resistance is very large (generally 5MPa) at the end of the grouting, the working pressure of the hydraulic system is very high, the hydraulic oil flows back to the tank through the bypass, and the reversing valve is at 0 position. At this time, restart, there will be motor, oil motor rotation, and the hydraulic cylinder does not move, crash. This is the result of the operation of the equipment safety protection device. Must unload
Working principle of the globe valve
The globe valve is also called the closure door, is the most widely used valve, it is widely popular, because the friction between the sealing surface in the opening and closing process is small, more durable, the opening height is not large, easy to manufacture, convenient maintenance, not only for low pressure, but also for high pressure. The closing principle of the globe valve is to make the sealing surface of the valve close to the sealing surface of the seat by relying on the pressure of the valve lever
The selection principle of the stop valve is: the stop valve should be selected on the pipeline or device of high temperature and high pressure media. Such as thermal power plants, nuclear power plants, petrochemical systems of high temperature, high pressure pipeline. A pipe with low convection resistance requirements. That is, where there is little consideration for pressure loss. Small valves can be selected needle valve, instrument valve, sampling valve, pressure gauge valve, etc. There is flow regulation or pressure regulation, but the adjustment accuracy.
The advantages and disadvantages of the globe valve and installation precautions
The load stop valve has the following advantages: the structure of the stop valve is simple, and it is convenient to manufacture and maintain. The working stroke of the stop valve is small, and the opening and closing time is short. The globe valve has good sealing property, small friction between sealing surfaces and long service life. The disadvantages of the globe valve are as follows: the fluid resistance of the globe valve is large, and the force required for opening and closing is large. The globe valve is not suitable for use with particles, large viscosity, easy coking...
Advantages of the globe valve
The most obvious advantage of the load check valve is that during the opening and closing process, the friction between the disc and the sealing surface of the valve body is less than that of the gate valve, so the sleeve is resistant. The opening height is generally only 1/4 of the diameter of the seat channel, so it is much smaller than the gate valve. Usually there is only one sealing surface on the globe valve body and valve disc, so the globe valve manufacturing process is better, and the globe valve is easy to maintain. Stop valve nominal pressure or pressure...
The purpose of the globe valve
Globe valves can be used in most medium flow systems. Various forms of stop valves have been developed to meet the needs of petrochemical, electric power, metallurgy, urban construction, chemical and other departments. The use of the globe valve is very common, but due to the large opening and closing torque and the long structural length, the nominal diameter is usually limited to 250mm or less, and there are also 400mm, but special attention should be paid to the import and export direction when selecting.
Name | Product model | Nominal diameter | Body material | Application field |
Stainless steel manual stop valve | J41W-16P/150LBP | DN50-DN300 | Stainless steel 304 | Water treatment, petrochemical, food and medicine, power energy, metallurgy, etc |
Note: The configuration of each part of this product is optional, please consult us for details, explain your specifications and requirements
The above information is for reference only, Zhejiang Tieyong Machinery Manufacturing Co., Ltd. reserves the right to update the design, if you have any questions, please consult customer service.
2 Product Advantages
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Valve body The body is precision casting body, secondary shot blasting treatment, fine appearance, no trachoma |
Bonnet and stem The contact between the valve cover and the valve stem should be sealed backwards to prevent leakage |
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Surface treatment The surface of the valve body is pickled and passivated to make the casting appearance a uniform silver self-bright color and maintain the metallic luster |
Two-layer detection Each valve is manufactured in accordance with national standards for shell and seal double-layer pressure testing |
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3.Technical parameter
Form | cutoff | Overall dimension | minitype | Channel direction | Straight-through type |
Driving mode | Manual operation | Mode of action | Single action | Type (channel location) | Two way type |
Functional role | Cutoff type | Lining material | Stainless steel | Sealing material | Stainless steel 304 |
Sealing mode | Hard seal | Pressure environment | High tension | Temperature environment | hyperthermia |
Flow direction | unidirectional | Accessories available | Francois | Applicable industry | Water supply and drainage |
Applicable medium | Weak acid-base medium |
4. Quality inspection equipment
Complete testing equipment to ensure product quality.
5.Packaging & Shipping
6. FAQ
1. What is the Minimum Order Quantity?
5~1000 pcs.And we also accpet sample orders.
2. Can you manufacture according to customer's samples?
According to samples, we can make drawing, tooling and sample
3.How long will it take to make new samples according to customer's drawing or sample?
Totally 20 days. 10 days for tooling and another 10 days for sample.
