What kind of fittings are there for adjustment
Most of the engineering networks involved in the transportation of water, gaseous, oil and other media need flow control. Regulating pipeline valves have been specially developed for these purposes.
Selection criteria
The correct configuration of a particular control valve system directly depends on the correct choice of control valves.
Before you go shopping, you need to arm yourself with the following information:
- The upper level of permissible pressure in the network. It is measured in Mpa.
- The typical operating temperature at which the operation of the system will be safe.
- The throughput capacity of the pipeline. This parameter shows the maximum volume of liquid that can pass through the line per unit of time (1 hour).
- The type of working medium transported through the pipe.
Varieties
The adjustment valves are presented on the market in two models:
- The valve is a through-seat regulating valve (KPSR).
- Shut-off and control valve (KZR).
Externally, functionally and at a price, both products are very similar. The differences primarily include a simpler design of the CPSR shutter. This affects the easier overlap of the line and the safety of the device. Its operation requires an order of magnitude less electricity. In order to activate the flow valve, no actuating device is required: this can be done manually.
In addition, the CPSR has half the permissible leakage in the closed state (no more than 0.05%). For comparison: in the KZR model, this indicator is at the level of 0.1%. As a result, KPSR valves are distinguished by safer operation. This is especially true for systems where the maximum tightness of the section cut off by the reinforcement is fundamentally important.
Based on this information, it becomes clear why through-seat control valves are more popular than their shut-off and control analogues. CPSR models demonstrate greater manufacturability and efficiency.