Pneumatic control gate valve is driven by the pneumatic actuator of compressed air, when the gate valve is closed, the surface can only rely on the material working pressure to seal, that is, the surface of the gate valve is pressed by the media working pressure to the other side of the valve seat to ensure the sealing of the surface, which is self-sealing. The vast majority of gate valves are forced to close, then when the gate valve is closed, the force is used to press the gate valve on the seat to ensure the sealing of the surface.
Product | Pneumatic Actuator Control Gate Valve |
Nominal diameter | NPS 2”, 3”, 4”, 6”, 8” , 10” , 12” , 14”, 16”, 18”, 20” 24”, 28”, 32”, 36”, 40”, 48” |
Nominal diameter | Class 150, 300, 600, 900, 1500, 2500. |
End Connection | Flanged (RF, RTJ, FF), Welded. |
Operation | Pneumatic Actuator |
Materials | A216 WCB, WC6, WC9, A352 LCB, A351 CF8, CF8M, CF3, CF3M, A995 4A, A995 5A, A995 6A, Alloy 20, Monel, Inconel, Hastelloy, Aluminum Bronze and other special alloy. A105, LF2, F5, F11, F22, A182 F304 (L), F316 (L), F347, F321, F51, Alloy 20, Monel, Inconel, Hastelloy |
Structure | Outside Screw & Yoke (OS&Y),Pressure Seal Bonnet |
Design and Manufacturer | API 600, API 603, ASME B16.34 |
Face to Face | ASME B16.10 |
End Connection | ASME B16.5 (RF & RTJ) |
ASME B16.25 (BW) | |
Test and Inspection | API 598 |
Other | NACE MR-0175, NACE MR-0103, ISO 15848, API624 |
Also available per | PT, UT, RT,MT. |
1. Pneumatic gate valve is mainly composed of oil plate, single flow valve, gate valve, seat, sealing ring, double cylinder and piston rod, hydraulic cylinder, diaphragm and its buffer mechanism, manual organization, pneumatic hand change equipment and single flow valve seal structure.
2. When the piston rod reaches the top of the travel arrangement, it can promote the information signal receiver to transmit information; Under the downward travel arrangement of the piston rod, information is transmitted from the down-drive information signal receiver, which is displayed as gate valve open/close information on the simulation dashboard in the operating room.
3. The water gate of the overhanging mark rod on the upper part of the handwheel is in the condition of rising or decreasing. When the gate valve is closed, the support foot digital display instrument is in a low place; In turn, when the gate valve is fully open, the support foot digital display instrument is in a high position. This is also the spot indication of the open and closed state of the gate valve.
4. The upper part of the cylinder head is equipped with pneumatic-manual conversion equipment. Rotate the changing remote rod clockwise to the pneumatic positioning hole, and the gate valve is in the pneumatic operating state; In turn, change the remote rod counterclockwise to the manual part, you can use the gate valve to carry out manual actual operation. The remote rod with spiral bevel gear turns in the opposite direction. When the gate valve is operated manually, the direction of the handwheel movement is the same as that of the general manual valve, that is, the clockwise direction turns to off and the reverse direction turns to on. Spiral bevel gear rotates in the opposite direction.
During the opening and closing process of the forged steel globe valve, because the friction between the disc and the sealing surface of the valve body is smaller than that of the gate valve, it is wear-resistant.
The opening or closing stroke of the valve stem is relatively short, and it has a very reliable cut-off function, and because the change of the valve seat port is proportional to the stroke of the valve disc, it is very suitable for the adjustment of the flow rate. Therefore, this type of valve is very suitable for cut-off or regulation and throttling.
As a professional Pneumatic Actuator Control Gate Valve and exporter, we promise to provide customers with high-quality after-sales service, including the following:
1.Provide product usage guidance and maintenance suggestions.
2.For failures caused by product quality problems, we promise to provide technical support and troubleshooting within the shortest possible time.
3.Except for damage caused by normal use, we provide free repair and replacement services.
4.We promise to respond quickly to customer service needs during the product warranty period.
5. We provide long-term technical support, online consulting and training services. Our goal is to provide customers with the best service experience and make customers' experience more pleasant and easy.