PZ273 typeElectro hydraulic knife type gate valveAlso known as electro-hydraulic knife valve, electro-hydraulic plug valve, electro-hydraulic thin gate valve, electro-hydraulic gate valve, electro-hydraulic knife gate valve, the electro-hydraulic knife gate valve is mainly composed of valve body, valve plate, screw rod, drive nut, bracket, pressure bar, electro-hydraulic actuator, and packing. The PZ273 electro-hydraulic knife gate valve has a small volume and light weight. The PZ273 electro-hydraulic knife gate valve belongs to the clamp type, parallel single gate structure, one-way flow properties, low flow resistance, and can cut off various slurry, ash, sewage, water slag mixture, fiber and other media. It is widely used in industries such as power, municipal, mining, metallurgy, chemical, coal, water conservancy, etc. It is a new and updated type with strong applicability. Alternative valve products.

2、 PZ273Y Electric Hydraulic Knife Gate Valve Model Representative

Valve type code: "PZ" represents knife type gate valve;

Drive form code: "2" represents electro-hydraulic;

Connection form code: "7" represents clamp type;

Structural form code: "3" represents a single gate;

Sealing surface material code: "Y" represents overlay alloy;

3、 The specific models of PZ273Y electro-hydraulic knife gate valve are

PZ273Y-6，PZ273Y-10，PZ273Y-16; (Valve body: cast iron)

PZ273Y-6C，PZ273Y-10C，PZ273Y-16C; (Valve body: cast steel)

PZ273Y-6P，PZ273Y-10P，PZ273Y-16P; (Valve body: stainless steel 304/304L)

4、 PZ273H electro-hydraulic wear-resistant knife type gate valve parts material

Valve body, upper cover made of carbon steel, stainless steel

Valve plate stainless steel

Stainless steel valve stem

Sealing ring rubber, PTFE, stainless steel, hard alloy

5、 Performance parameters of PZ273H electro-hydraulic wear-resistant knife type gate valve

Nominal pressure PN

Shell test at 1.5 Mpa

Sealing test 1.1 Mpa

Working temperature rubber ≤ 80 ℃ PTFE seal ≤ 180 ℃ Hard seal ≤ 425 ℃

Applicable media: syrup, pulp, wastewater, coal slurry, ash, slag water mixture

6、 The main application of PZ273H electro-hydraulic wear-resistant knife type gate valve

This product uses an electro-hydraulic linkage device to control the opening and closing of valves through reciprocating pushing. If equipped with sensors or digital display devices, it can be centrally or program-controlled in remote and high-altitude dangerous areas. It is widely used in oil, water, and steam pipelines such as food, paper, medicine, petroleum, and chemical industries to connect or cut off fibers, dust, chemical treatment wastewater, sedimentation tanks, asphalt, silo outlets, fruit juice, grains, and other media in the pipelines.

7、 Product features, description, and working principle of PZ273H electro-hydraulic wear-resistant knife type gate valve

Hydraulic knife gate valve, also known as hydraulic knife type gate valve,Pneumatic knife gate valveThe valve gate is connected to the piston rod of the hydraulic cylinder, and its operating principle is to manually drive the hydraulic pump handle to press hydraulic oil into the upper and lower chambers of the hydraulic cylinder through the manual directional valve, which drives the piston rod to move up and down, thereby driving the opening and closing of the gate to achieve the valve opening and closing function.

PZ273Y electro-hydraulic knife gate valve is an integral knife gate valve structure, which includes a valve body, a gate plate, and a U-shaped sealing strip. The bottom of the chamber in the valve body is provided with a groove and an elastic U-shaped sealing strip. When the valve is closed, the gate plate moves downward, and the bottom edge of the gate plate contacts the sealing strip, compressing the sealing strip into the groove to achieve sealing between the valve body and the gate plate; When the knife gate valve is opened, the gate moves upward and the bottom edge of the gate disengages from the sealing strip. The sealing strip bounces up and the groove is flat, which can prevent the medium sediment from accumulating in the groove of the valve body during use, making it difficult to block and residue free. The pipeline is easy to clean, effectively improving the sealing effect of the knife gate valve and preventing leakage when the valve is closed. Longer service life, simpler maintenance, flange sealing surface with O-ring, no need for additional flange gasket, simple and convenient installation, low friction coefficient, flexible opening and closing.

8、 Application scope and fields of PZ273Y electro-hydraulic knife gate valve

Knife gate valve, also known as knife gate valve or knife gate valve, is suitable for pipelines containing suspended particles and fiber materials such as pulp, sewage, coal slurry, ash and cement mixtures. It is cut off by a blade shaped gate that can cut through fiber materials. The valve body actually does not have a chamber, and the gate plate rises and falls in the side guide groove, and is tightly pressed against the valve seat by the bottom protrusion. If high medium sealing performance is required, an O-shaped sealing valve seat can be used to achieve bidirectional sealing. According to the driving mode, it is divided into manual knife gate valve, pneumatic knife gate valve, and electric knife gate valve.

Knife gate valves are suitable for professional pipeline systems in mining power plants, such as coal preparation, ash discharge, slag discharge, urban sewage treatment, food, health, medicine, etc. The ultra-thin knife gate valve completely solves the difficult problems of high flow resistance, heavy weight, difficult installation, and large footprint of ordinary gate valves, flat gate valves, ball valves, globe valves, regulating valves, butterfly valves, and other types of valves due to its advantages of small volume, low flow resistance, light weight, easy installation, and easy disassembly. After the emergence of knife gate valves, a large number of general-purpose cut-off valves and regulating valves have been replaced by them. As of today, the United States and Japan have the largest usage of knife gate valves worldwide.

9、 Main appearance and connection dimensions (mm)