Lift check valve
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Product Description
Product overview
The national standard lift check valve is suitable for medium and small diameter pipelines under various pressures, temperatures and media to control the opening and closing devices that connect or cut off the pipeline media; rely on the self-weight of the valve flap and the fluid pressure difference to automatically prevent the fluid from flowing back.
Product Features
1, check valve product design and manufacturing according to GB/T 12235 design and manufacturing inspection, reliable sealing, excellent performance.
2. The sealing surface of the disc and valve seat is made of Styli (stelite) cobalt-based hard alloy surfacing, which is wear-resistant, high temperature resistant, good abrasion resistance and long service life.
3. Various piping flange standards and flange sealing surface types can be used to meet various engineering needs and user requirements.
4, the valve body material varieties, packing, gasket according to the actual conditions or user requirements reasonable selection, can be applied to a variety of pressure, temperature and medium conditions.
5. Check valves with different structural forms and connection forms can be manufactured according to user requirements for supporting the use of various equipment.
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Main Performance Specifications |
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Design Criteria |
GB/T 12235 |
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Pressure temperature rating |
GB/T 12224 |
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Structure length |
GB/T 12221 |
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Flange type and size |
GB/T 9113、JB/T79,EN1092A5ME B16.5/B |
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Inspection and Test |
JB/T 9092.GB/T13927、API598 |
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Test pressure |
Nominal |
PN1.6 |
PN25 |
PN4.0 |
PN6.4 |
PN10.0 |
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Shell |
2.4 |
3.8 |
6.0 |
9.6 |
15.0 |
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High pressure |
1.8 |
2.8 |
4.4 |
7.1 |
11.0 |
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Low pressure |
0.6 |
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Material of main parts |
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Serial No. |
Part Name |
Carbon Steel |
Stainless Steel |
Alloy Steel |
low temperature steel |
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1 |
Valve body |
WCB |
CF8 |
WC6 |
LCB |
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2 |
Valve plate |
WCB/25 |
CF8/F304 |
WC6/F11 |
LCB/LF2 |
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3 |
Gasket |
flexible graphite |
flexible graphite |
flexible graphite |
flexible graphite |
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4 |
Bonnet |
WCB |
CF8 |
WC6 |
LCB |
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5 |
Stud |
35CrMoA |
0Cr18Ni9304 |
25Cr2MoVA |
35CrMoVA |
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6 |
Nut |
45# |
0Cr18Ni9304 |
35CrMoA |
45# |
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7 |
Spring |
605i2Mn |
0Cr18Ni9304 |
0Gr18Ni9304) |
0Cr18Ni9(304) |
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Product shape and structure size
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Nominal diameter |
PN1.6/2.5/4.0MPa |
PN6.4MPa |
PN10.0MPa |
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L |
H |
L |
H |
L |
H |
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DN32 |
180 |
100 |
260 |
160 |
260 |
165 |
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DN40 |
200 |
110 |
260 |
165 |
260 |
170 |
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DN50 |
230 |
115 |
300 |
170 |
300 |
175 |
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DN65 |
290 |
140 |
340 |
185 |
340 |
190 |
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DN80 |
310 |
170 |
380 |
205 |
380 |
235 |
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DN100 |
350 |
200 |
430 |
230 |
430 |
265 |
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DN125 |
400 |
230 |
500 |
265 |
500 |
310 |
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DN150 |
480 |
255 |
550 |
310 |
550 |
350 |
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DN200 |
600 |
285 |
650 |
350 |
650 |
400 |
Products Message
We will contact you within one working day. Please pay attention to your email.
Tianjin Hualida Valve Co., Ltd.
Address: Tianjin Jinan Industrial Development Zone
Mobile Phone: +86 15022758886
Website: www.hualidavalve.com
Mailbox: hualidavalve@163.com
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