ZSSV-T Pneumatic segment regulating ball valve
ZSSV-TS Pneumatic segment regulating ball valve
ZSSV-TT series pneumatic valve V-regulation
ZSSV - TST series
ZSSV-TF Series
ZSSV-TM Series
ZSSV-E Pneumatic segment cutting ball valve
ZSSV-ES Series
ZSSV-ET Series
ZSSV-EST Series
ZSSR-T Pneumatic regulating ball valve
ZSSR-TS Pneumatic regulating ball valve
ZSSR-TT Series
ZSSR-TST Series
ZSSR-TF Series
ZSSR-TM Series
ZSSR-TCL Series
ZSSR-E Pneumatic cutting ball valve
ZSSR-ES Pneumatic cutting ball valve
ZSSR-ET Series
ZSSR-EST Series
ZSSW-T Series
ZSSW-TS Series
ZSSW-E Pneumatic cutting butterfly valve
ZSSW-ES Pneumatic cutting butterfly valve
ZSHQR-E Series
ZSHQR-T Series
ZSHFJ-E Series
ZKRV-T Series
ZKRV-E Series
ZKRR-T Series
ZKRR-E Electronical cutting ball valve
ZKRW-T Series
ZKRW-E Series
ZKRQR-ET Series
ZKRQR-T Series
ZDZV - 16T electric intelligent quantitative control valves
ZSLDC Pneumatic cutting knife gate valve
ZSLDSA Pneumatic cutting knife gate valve
ZSLDSB Pneumatic cutting knife gate valve
ZJHP(ZJHM) Series
ZKL (MP0) Series
ZSSR - 25EG Series
ZSSJR - E Series
ZKRJR - E series
MPSV - 2000 type manual slurry
PPSV - 2000 type pneumatic slurry
PPSV - 2000 type pneumatic slurry
MS-2000 Series
Slag discharge program controller
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PRODUCTS

Product name: ZSLDSA series pneumatic knife gate valve product model: LP31—300
Product description:


ⅠSummary

ZSLDSA series pneumatic knife gate valve is used for controlling the producing process in the pulp paper, alkali liquor, food, refine sugar, breeze, slurry, ore pulp, ore scoria, sewage disposal  industries and so on, especially using for some mediums, such as high viscosity materials and waste residue. For example, it uses as a high-viscosity scummer in producing process and heavy-goods separator, aquapulper and as other types valves. The compressed air is as the power and energy for the valve. It is received the outputting signals from DCS, PLC, ON/OFF switches and other control equipments. Then, the 2/5way solenoid valve is operating and switching the air channel to driving the piston in the cylinder of actuator.  At the same time, the stem is running that make the valve open or closed, which has finished the two ways controlling. There is a sealing funnel at bottom of the valve, which is used for staying the less of waste residue in the valve cavity and directly watching the residual quantity by the sight glass. You could open the clean water valve on the funnel to control the flowing by watching from the sight glass if it is necessary. Then, some useful materials from the funnel could be back in the pipe, but the waste residue would be stayed in. About 10-20 days later, open the sight glass and clean the waste residue. The advantage of funnel is that less of waste material in the valve cavity could be cleaned on time so that the abrasion reduce a lot between the board and body, even has longer using time.

Ⅱ Main parameters and performance
◆Nominal pressure:
  1.0Mpa;1.6Mpa;2.5Mpa
◆Working temperature: 0℃-150℃
◆Material: CF8, CF8M, CF3M
◆Air supply pressure: 0.4Mpa~0.6Mpa
◆Control voltage: 24VDC/220VAC

Ⅲ Ordering demands;
1.When to make the order, please choose the correct model referring to the item  Ⅳ   in the table. If not, you’d better provide the following information, such as the type, pressure, dimension, the main material, medium temperature, the control voltage of solenoid valve and others. The action type is formally air to open. If not, you could note it, including the special demands, such as the body material being ZG25. It should be noted.
2. The choosing accessories;
Limit switches: 1) Contacted switches        
2) Induction switches (24VDC/220VAC) 
The material of connecting flanges; 1) A3 (Carbon steel) 2) 304SS Note: If order the ZSLDSB series knife gate valve as the spare parts, please provide the flange size of old valve, Which belong to the special order

Ⅳ The compiling specification of series products’ model;
Item
1
2
3
4
5
 
6
7
8
9
10
11
12
13
14
Explain
Z
S
L
D
B
 
 
 
 
 
 
 
 
 
 
1
Z
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Final controlling element symbol
2
 
S
 
 
 
 
 
 
 
 
 
 
 
 
 
Pneumatic piston actuator
3
 
L
 
 
 
 
 
 
 
 
 
 
 
 
Liner traveling
4
 
D
 
 
 
 
 
 
 
 
 
 
 
knife gate
5
 
SB
 
 
 
 
 
 
 
 
 
Common type
6
Nominal pressure
6,10,16
 
 
 
 
 
 
 
 
0.6Mpa,1.0Mpa,1.6Mpa
7
Control type
E
 
 
 
 
 
 
 
Cutting type
8
Action type(flow direction)
B
 
 
 
 
 
 
Air to close
K
 
 
 
 
 
 
Air to open
9
Nominal diameter DN(mm)
50
至800
 
 
 
 
 
50、65、80、100、125、150、200、250、300、350、400、450、500、600、700、800
10
Seat type
Y
 
 
 
 
Hard seat
R
 
 
 
 
Teflon soft seat
11
 
Valve body material
P
 
 
 
CF8
M
 
 
 
CF8M
L
 
 
 
CF3M
12
Input signal range
D3
 
 
220VAC
D4
 
 
24VDC
13
Position limit switch
A
 
Contacted switch
B
 
Induction switches(24VDC)
C
 
Induction switches(220VAC)
14
Name of manufacture
LP
Zhejiang Tongpu automatic control equipment CO., LTD.
(Wenzhou Lipu automatic control equipment CO., LTD.)

 

 

 

 

 

 

 

 

 

 

 

 

 



Ⅴ Safety 

ⅰ We make sure all the valves is very safe only if the material and pressure accord with the requirements in your order.
ⅱ According to the 4th part in the national standard(GB/T17213-2005/IEC60534-1999) of control valves industry area, it is the examination and testing on duty. We have test and examined the pressure and material following the testing report so that we are sure the safety of valves. The technical demands as followed, 1. Material testing The physical test and chemical composition of the material for producing control valves accord with the standard of control valve or the concerned requirements in the order. 2.the static pressure testing in the liquid All the compositions of control valve, even no actuator, which must be finished the static testing in the liquid according to the concerned pressure. i.e. it is tested by 1.5 times to the rating pressure.

Ⅵ Principle of operation
The knife gate valve is made up of pneumatic actuator, knife gate valve, solenoid valve, air filter, air channel components, connecting and fastening pieces and so on. It finishes the position controlling from full open to full close by the solenoid valve. Then, the signal (e.g., 24VDC, 220VAC) from the controlling instrument or manual tool operating will control the solenoid valve, which output the signal of air pressure at once to impulse the actuator so that it finishes the position controlling from open to closed by the wheel box to move the knife gate.

Ⅶ Installing, usage and maintenance
◆The position of installing the knife gate valve would be in the place as standing by the building platform 、a walking block ect. in order to having the best watching、adjusting、Operating、maintenance and repairing.
◆The knife gate valve may horizontal fix or vertical installing.
◆When to install the valve body, the medium must be flow to in a direction from the arrows on the valve body.
◆The waste materials should be removed before installation of piping systems. Once installed, the position of the valve body must be opened completely to sweep by blowing the wind into a pipeline.
◆There is a screw(M12 ~ M20)  on the upper end of the cylinder of the pneumatic actuator and the lower end of the box, which is used for adjusting the position with fully open or fully close.

Ⅷ Storage
Control valve had better be kept in the room among 5℃-40℃ temp and ≤90% in the humidity. You’d better make sure there are no corrosive characteristics and other bad components in the air.

Ⅸ Packing and transportation
The packing material must accord with the concerned packing standard and demands. The packing must be intact and whole. It should have the own symbol against rain or dust and how to lay up. You should prevent the strong shaking in order to protecting the packing well in the journey of transportation.
 

X、The pneumatic cutting knife gate valve (ZSLDSB)(wafer type)

1 Up valve bady      6A Cushion        14 Screw          22 Piston            30 Gland flange
2 Down valve bady    7 Crientotion prec  15 Limited screw    23 Gallow lid         31 Posifion limit trasmifter
3 Wadge            8 O-type seal       16 Cylinder stud     24 Gallow sheath       32 Post nut
4 up Pressure Dish    9 Paking           17 Cylinder lid      25 Seal ring           33 Cylinder control equipment
5 Top Seal Ring      10 link bolt        18 Seal cushion      26 Seal equipment      34 scope
6 o-Type Seal        11 Knuckle joint    19 Cylinder         27 Seal equipment      35 pressure board
4A.down Pressure Dish 12 Piston rod     20 Gallow circle     28 Post               36 gather dreg funnel                        5A.copper Seal aircle   13 O-type seal    21 Piston ring       29 Double ended screw  37 seal cushion
       Nominal
size
DN
DIMENSIONS
 
Flange:GB9119-2000
A
b
B
(breadth)
l
L
Valve
N·W
(Kgs)
 
D
C
K
n-L
E
Flange
N·W
(kgs)
Series1
Series2
80
40
110
180
305
930
39
 
200
20
160
8-18
90.5
91
3.95
100
60
135
206
310
950
45
 
220
22
180
8-19
116
110
4.52
125
62
180
240
320
1040
64
 
250
22
210
8-20
141.5
135
4.93
150
64
180
260
395
1230
75
 
285
24
240
8-22
170.5
161
6.53
200
66
220
340
410
1360
111
 
340
24
295
8-22
221.5
222
8.51
 
250
80
250
380
480
1580
132
 
395
26
350
12-22
276.5
276
10.92
 
300
84
280
430
550
1850
165
 
445
28
400
12-22
327.5
328
13.3
 
350
88
350
540
560
2010
240
 
505
30
460
16-22
359.5
380
20.26
 
400
92
380
560
585
2170
300
 
565
32
515
16-26
411
430
29.32
 

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