lifting check valve
WCB one way valve lift type 3 4 shut off valve
Valve Type: |
Lifting check valve |
Structure: |
Lift type |
Standard: |
EN/API |
Workmanship: |
Investment casting |
Sealing direction: |
Single-directional |
Sealing grade: |
Zero leakage |
Temperature: |
-20°C<T<120°C |
Operation： |
Self-starting |
Characteristics
This WCB lift check valve is integrally cast from ASTM A216 carbon steel for high temperature and pressure resistance up to 425℃. Vertical guided disc realizes automatic backflow prevention with metal or PTFE sealing options. Flanged connection offers stable tight shutoff under medium-high pressure. Cost-effective for steam, oil, hot water and gas pipelines, widely used in power plant, heating and petrochemical industrial systems.
Advantages
1.ASTM A216 WCB cast carbon steel of this NRV valve can withstands high temperature up to 425℃, superior to ductile iron, perfectly for steam, boiler feed water and thermal pipeline systems.
2.Vertically guided disc realizes fast and tight shutoff, avoiding pump reversal and pipeline pressure loss, greatly protecting pumps and heat exchangers from backflow damage.
3.Integral casting covers full size range with competitive cost, stable long-term performance for mass industrial heating and petrochemical projects.
Packing
Standard export wooden case packaging
Application Scenarios
This backflow preventer valve lifting type is widely used in power plant boiler feed water pipelines, thermal steam circulation systems, petrochemical oil delivery lines, heat transfer oil stations, high-temperature HVAC circulating water, compressed air pipelines and industrial hot water pump rooms.
Material
|
Body,bonnet,disc,rocker,guide sleeve |
|
|
|
Working temperature |
|
|
WCB |
20Cr13 |
|
13Cr |
≤425 |
Water,steam,oil,nitric acid,acetic acid,strong oxidizing medium,urea,etc. |
|
WC1 |
≤450 |
||||
|
WC6 |
≤540 |
||||
|
WC9 |
≤570 |
||||
|
C5 C12 |
≤550 |
||||
|
CF8 |
304 |
≤600 |
|||
|
CF3 |
304L |
||||
|
CF8M |
316 |
||||
|
CF3M |
316L |
Dimension
|
DN(mm) |
L |
D |
D1 |
D2 |
b-f |
Z-φd |
H |
|
15 |
130 |
95 |
65 |
45 |
16-2 |
4-φ14 |
77 |
|
20 |
150 |
105 |
75 |
58 |
18-2 |
4-φ14 |
77 |
|
25 |
160 |
115 |
85 |
68 |
18-2 |
4-φ14 |
80 |
|
32 |
180 |
140 |
100 |
78 |
18-2 |
4-φ18 |
85 |
|
40 |
200 |
150 |
110 |
88 |
18-3 |
4-φ18 |
95 |
|
50 |
230 |
165 |
125 |
102 |
18-3 |
4-φ18 |
105 |
|
65 |
290 |
185 |
145 |
122 |
18-3 |
8-φ18 |
120 |
|
80 |
310 |
200 |
160 |
138 |
20-3 |
8-φ18 |
130 |
|
100 |
350 |
220 |
180 |
158 |
20-3 |
8-φ18 |
140 |
|
125 |
400 |
250 |
210 |
188 |
22-3 |
8-φ18 |
155 |
|
150 |
480 |
285 |
240 |
212 |
22-3 |
8-φ22 |
180 |
|
200 |
600 |
340 |
295 |
268 |
24-3 |
12-φ22 |
215 |
|
250 |
730 |
405 |
355 |
320 |
26-3 |
12-φ26 |
260 |
|
300 |
850 |
460 |
410 |
378 |
28-4 |
12-φ26 |
315 |