Taizhou EVP Vacuum Equipment Co., Ltd.

China Manufacturer with main products: Rotary Vane Vacuum Pump, Vacuum System, Liquid Ring Vacuum Pump, Scroll Vacuum Pump, Roots Vacuum Pump, Dry Vacuum Pump

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DYC-Q series low vacuum electro-magnetic pressure difference valve


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Specifications

DYC-Q series low vacuum electro-magnetic pressure difference valve is a new vacuum valve which has been installed in the gas inlet of the mechanical pump. The working principle is the valve and pump should be connected in the same power . When the pump stops working or power supply is suddenly interrupted, the valve will depend on atmospheric and vacuum pressure on making the valve plate closes automatically, will be closed vacuum system to maintain their vacuum, and the atmosphere through the throttle valve into the pump chamber in order to avoid pump oil return to vacuum system. In this way, it protects the vacuum system and is beneficial for the re-starting of mechanical pump.

The applicable active medium of this valve are air, non-corrosive gas.


Main technical performance:
Scope (Pa)
105~102
Valve Leakage Rate(Pa.L/S)
<6.5x10-2
Medium temperature (℃)
-25~+40
Time for opening and closing the valve (S)
≤3
Rated voltage (V/Hz)
220/50
Installation 
Vertical
(Picture one)(KF)Outline dimension and connection size (GB4982)
Model
Nominal Diameter (DN)
ΦW
ΦD
ΦB
H
L
Flange standard
DYC-Q16/KF
16
60
30
17.2
115
63
GB4982
DYC-Q25/KF
25
70
40
26.2
130
67
DYC-Q40/KF
40
100
55
41.2
160
81
DYC-Q50/KF
50
110
75
52.2
195
85
/
Connection and outline dimension (GB/T6070)
Model
Nominal Diameter (DN)
ΦD
ΦB
H
L
n-d
Flange standard
DYC-Q16
16
60
45
75
63
4-M6
GB/T6070
DYC-Q20
20
65
50
80
67
DYC-Q25
25
70
55
90
67
DYC-Q32
32
90
70
100
75
4-M8
DYC-Q40
40
100
80
110
81
DYC-Q50
50
110
90
123
85
DYC-Q65
65
125
105
147
95
DYC-Q80
80
145
125
147
102
DYC-Q100
100
165
145
140
112
8-M8
DYC-Q125
125
200
175
185
121
8-M10
DYC-Q160
160
225
200
210
138
DYC-Q200
200
285
260
240
170
12-M10
DYC-Q250
250
335
310
285
195
DYC-Q320
320
425
395
310
241
12-M12
 

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