Self-flow balancing, self-balancing, flow control valves, flow controllers

Self-flow balancing, self-balancing, flow control valves, flow controllers Details: operated flow control valve, also known as self-balancing valve, flow control valves, flow control, dynamic balancing, flow balance valve, it is An easy and intuitive control of the flow regulating device, the pipe network applications operated flow control valve can be set directly from the design flow, the valve can be under the action of water flow deviation automatically eliminate the remaining pressure head and pressure fluctuations caused by the pipeline no matter what the system pressure changes remain constant set flow, the valve these features make the pipe network flow regulation once completed, the transfer of work into a simple network traffic distribution, effectively solve the pipe network hydraulic imbalance. Operated flow control valve is mainly used in: central heating (cold) water systems, etc., so that network traffic on demand, eliminating the water system hydraulic disorder, problem solving Enthusiasm, energy savings, save 15% -20 %. Features ZLF-16-type self-balancing valve is a self-control and to keep the flow constant flow through the valve controlled system, and has a flow indicating pressure changes take advantage of the media itself, easy adjustment for heating and air conditioning and other non-corrosive media flow control. Before running a one-time adjustment, you can make the system flow automatically constant setpoint requirements. Dynamic balancing valve into the dynamic flow balance valve, pressure balance valve dynamic, self-self-pressure control valve. Also known as Dynamic Flow Control Valves: Self-flow control valve, self-balancing valve, constant flow valves, automatic balancing valves, etc., it is now, according to system conditions (pressure) changes automatically change the drag coefficient, at a certain pressure within range, you can effectively control the flow through maintaining a constant, that is, when the pressure valve before and after the increase, by automatic operation of the valve off a small flow rate can be maintained without increasing the contrary, when the pressure decreases, the valve automatic opening, flow remains constant after the names, but when the pressure is less than or greater than the normal operating range of the valve, which after all can not provide additional pressure head, then hit the valve fully open or fully closed position flow rate is still higher than the set low or high flow rate can not be controlled. Dynamic pressure balance valve, also known as self-pressure control valve, pressure controller, voltage regulator variable synchronizer, pressure balance valve, which is used to adjust the differential pressure valve opening by the valve pressure Changes to make changes down the line resistance, so that when conditions change to maintain a substantially constant pressure, it is the principle of the flow within a certain range, can effectively control the controlled system pressure constant, that is, when When the pressure system increases, through the valve automatically shut tricks, it can ensure the controlled system pressure increases on the contrary, when the pressure decreases, the valve automatically open a large, pressure remains constant. Self-pressure control valve itself, within the control of the automatic valve plug to the closed state, the differential pressure across the valve exceeds a pre-set value, the spool opens automatically and automatically adjust the degree of opening film in the sense of a role in maintaining the pressure at both ends of the valve the difference is relatively constant. Performance and Features 1, the ideal regulation performance; 2, excellent cutoff function; 3, accurate to one-tenth ring opening status display; 4, the theoretical curve is equal percentage flow characteristic curve; 5, National patented open and close the lock equipment; 6, corresponding to each full circle for a reason given flow coefficient, commissioning across the valve as long as the measured pressure, you can easily calculate the flow through the valve; 7, PTFE and silicone seal, seal reliable; 8, the internal components using YICr18Ni9 or copper alloy, strong corrosion resistance and long service life; 9, the inner lifting stem, without reserve operating space. 10, which is a combination valve. Structure and working principle of self-balancing valve is a kind of automatic adjustment feature that allows the network to achieve the dynamic balance of the new valve. We often have operated flow balancing and self-pressure balance valve. Its structure and works as follows: (1) Self-Flow Control Valves role in the case of changes in import and export pressure valve to maintain a constant flow through the valve, connected in series in order to maintain the controlled object (such as a ring Road, a user, a device, etc., the same below) in a constant flow. Self-Flow Control Valves from the structure that is a double valve assembly, which consists of a manual adjustment and automatic balancing valve group (see Figure 1). Manual adjustment valve function is set flow rate, the role of automatic balancing valve group is to maintain a constant flow. For manual adjustment valve, the flow rate G = Kv ■, where the flow coefficient Kv manual adjustment valve port, P2-P3 is manually adjusted on both sides of the differential pressure valve port. Kv depends on the size of opening, the opening of a fixed, Kv is a constant, so long as the P2-P3 constant, constant flow G. The P2-P3 constant is set by the automatic balancing valve control. For example, the pressure difference P1-P3 is increased, by the action of a sense of laminated and spring of the automatic balancing valve set off small, so P1-P2 is increased in order to maintain a constant P2-P3; P1-P3 decreases and vice versa, the automatic balancing valve set to open, causing a P1-P2 is reduced to maintain constant P2-P3. Manually adjusting the degree of opening of each valve corresponds to a flow relation by opening and the flow calibration rig test, and with the degree of opening and locking devices. (2) the role of self-pressure balancing valve is applied to maintain constant pressure on the controlled object. Self-operated pressure balance valve installed on the water supply pipe in accordance with still return pipe, into the water supply structure and return structure, the two are not interchangeable. The valve from the valve body, dual throttle valve seat, valve, a sense of laminated, spring and pressure adjustment device. Figure 2 is a schematic structure backwater, Figure 3a schematic diagram for the installation location. When the network of supply and return water pressure P1-P3 increases, driven by a sense of laminated valve down, so P2-P3 increases, thereby maintaining P1-P2 (ie, the control loop is applied to the pressure) constant ; on the contrary, P1-P3 decreases, the valve shifts, P2-P3 decreases, the P1-P2 unchanged. If P1-P3 constant, and the internal resistance of the loop changes as shown in Figure 3a, such as a branch off, the total resistance of the loop is increased, the decrease in the moment P2, P1-P2 increases; But a sense of equilibrium followed by the film is broken, the valve down, the pressure balance valve resistance increases, so that P2 is back up to its original size, the P1-P2 unchanged. Visible, whether it is network pressure fluctuations, or charged with resistance to change inside the object, the self-pressure balance valve can be applied to the controlled object to maintain constant pressure. Acting inlet valve are: American International Group CARO Carlo, Germany FRING forint, England UK (Ruckus) Valves International Co., Germany TOP (Top) Valve, Germany (ROTORK) Rotork Valve Co., Ltd. and other imported products, Japan Kitazawa (KITZ), Japan valve days (VENN) Valve Co., Ltd. Shanghai Zhu Fu - Valves Flow Control Valves products [butterfly] [ZLF-16-type self-balancing valve Flow Control Valves] [Self] [ZYC type self-pressure control valve digital lock balance valve] [] [ZLF type self-balancing valve] [German] [import balancing dynamic flow balancing valve] [Dynamic Balance Electric Control Valve Flanged Valves] [] [yellow Copper Valves Flow Valves] [off] [static balance Manual Flow Control Valves] [] [] [manual balance valve digital lock wire port Valves] [lock valve pressure balance valve bypass] [] [British imports Valves Flow Control Valves] [Self] [self-pressure control valve] [] [self-pressure balance valve KPF type Valves]