Piston-type Sludge Discharge Valve P747X
Keywords:
Valve Encyclopedia
Category:
- Product Description
-
Overview
The 100C angular pneumatic sludge discharge valve is suitable for water treatment plants and is used to discharge sludge and wastewater from settling tanks. This valve features an angular design, with a partition that divides the internal cavity into two sections: a control chamber and a flow passage. The control chamber is further divided into upper and lower sub-chambers by a diaphragm. The valve seat has a flat-bottom structure, and its sealing surface is coated with ceramic, offering exceptional wear resistance and corrosion resistance. Additionally, this design effectively prevents the accumulation of debris and sediment, ensuring long-term reliable operation.
The top of the valve cover and the side of the valve body are equipped with threaded holes. The pressure source enters and exits the upper and lower control chambers via control lines, respectively. The opening or closing of the sludge discharge valve is controlled by regulating the pressures in the upper and lower chambers through solenoid valves. In the event of an unexpected loss of the control air supply, the sludge discharge valve can remain closed under the pressure of the incoming water. (The external pressure control source is an air supply.)
Main specifications
Pressure rating: PN6
Maximum working pressure: 0.6 MPa
Valve seat test pressure: 0.66 MPa
Valve body test pressure: 0.9 MPa
Flange pressure rating: PN10 or as specified by the customer
Simplified Diagram of the Main Valve Body Structure and Material List
Piping Diagram
Explanation of the Air Source Control Principle
1. Close the valve
The two 5/2 solenoid valves, 1.2 and 3.4, are energized, allowing the pressurized air source to enter the upper control chamber at 100C while the lower control chamber is vented. 100C then closes.
2. Open the valve
The two 5/2 solenoid valves—valve 1.4 and valve 2.3—are both energized. The pressurized air source enters the upper control chamber at 100C, while the pressure in the lower control chamber is vented. Valve 100C then closes. Each solenoid valve is equipped with a manual override device, allowing manual control of the sludge discharge valve in the event of power failure.
Preparation Instructions
Main ingredients
Serial number
Name
Material
1
Valve body
QT450-10
2
Valve
QT450-10 + Rubber
3
axis
2Cr13
4
Partition
QT450-10
5
O-ring
NBR
6
Lower die plate clamp
Q235
7
Diaphragm
NBR+Cord Fabric
8
Upper mold plate clamp
Q235
9
Double-head bolt
8.8 magnitude
10
Nut
Level 8
11
Valve cover
QT450-10
12
Eye bolt
20#
13
Nut
A2-70
14
Bolt
A2-70
15
O-ring
NBR
16
Shaft sleeve
ZCuAl10Fe3
17
O-ring
NBR
18
Sealing ring
NBR
19
Thin nut
A2-70
Main external dimensions and connection dimensions (mm)
Nominal diameter
DN100
DN150
DN200
DN250
DN300
DN350
DN400
L
160
190
225
260
280
315
340
L1
120
150
190
220
260
300
340
H
370
440
530
615
785
880
970
The flange connection has a pressure rating of PN10; other specifications and dimensions can be customized according to customer requirements.
Previous page: Y-type filter GL41W
Next page: Diaphragm Sludge Discharge Valve PM747X
Get a free product quote
Company address:
No. 55, Jinjiangnan Road, Shangjie District, Zhengzhou City, Henan Province
Phone:+86-371-68122889
Email:zzsfmjt@126.com
Mobile phone:+86-13703990948
Fax:0371-68122899
Quick Navigation:
Mobile website