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Wafer Type Double Disc Swing Check Valve
Wafer Type Double Disc Swing Check Valve

Wafer Type Double Disc Swing Check Valve

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Product Description

Model schedule illustration

 

 

●Feature code: Bolt-jointed bonnet structure omitted Ps-Pressure sealed structure

●Valve type code: H-Check valve

●Connecting type code: 1-Interior whorl    2-Other whorl    4-Flange 6-Welding    7-To inserting    8-Bear and insert welding

●Design feature code:1-Lifting type 2-Lifting vertical type 4-Single-disc swing type 6--Dual-disc swing type

●Sealing formation code: Y—Hard alloy    H—Alloy steel    X-Rubber    F-Polytetrafluoroethylene (PTFE)

●Pressure grade code: The 10 times of the nominal pressure MPa, pound grade io practical number

●Body material code: (1)Cast the valve body: C-WCB    I-WC6、ZG1Cr5Mo V-WC9、ZG20CrMoV    P-CF8、ZG1Cr18Ni9Ti

                                     R-CF8M、ZG1Cr18Ni12Mo2Ti    S-CF3    L-CF3M    F-LCB N-LC3

                                 (2)Forge thevalve body: C-A105    E-LF2    A-F11    V-F22    P-F304    R-F316    S-F304L L-F316L
 

 

 

Products design features

 

Check valves are used in pipes under pressures between PN1.6~16.0MPa (Class150~250oLb), working temperatures -196~ 60℃, They are used in industries include oil, chemistry, pharmaceutical, fertilizer, and power gene-ration to prevent the backward flux of the media.

 

The main structure features include:

1. The products feature a reasonable structure, reliable seal, good performance and nice modeling.

2. Either soft or hard seal can be selected for the product upon different working conditions.The sealing face is built up with Co-based carbide alloy, leaving a better wearability, corrosion and scrap resistance and a longer duration.

3. Smallopening pressure, the disc can be opened fully with a very small pressure differential.

4. Inside-set bolt-bearing structure reduces leakage and reliable use.

5. PN>16.0Mpa (class15oo), the middle cavity uses a self-tightening sealing structure to have the sealing performance reinforced along with the pressure rise so as to ensure the sealing performance.

6. Different parts materials and different sizes for flange, butt-welding are available for sensible combination according to different working facts and customers' requirements.

 

 

 

Main Parameter of the Products

 

Serial models (Ps)H44H(Y)、(Ps)H64H(Y)、(Ps)H41H(Y)、(Ps)H61H(Y)、(Ps)H42H(Y)、(Ps)H62H(Y)
(Ps)H74H(Y)、(Ps)H71H(Y)、(Ps)H76H(Y)、(Ps)H72H(Y)
Pressure grade range PN1.6~42.0MPa (Class150~2500)
Drift diameter range DN15~1000mm (1/2"~40")

 

 

 

Products Performance Specification

 

Pressure Testing pressure at constant temperature (Mpa) Applicable temperature Applicable medium
The shell testing Sealand test
(MPa)
Nominal rating pressure
(PN)		 1.6 2.4 1.76 -196~600℃ Water,oil,steam,etc.
2.5 3.75 2.75
4.0 6.0 4.4
6.4 9.6 7.04
10.0 15.0 11.0
16.0 24.0 17.6
25.0 37.5 27.5
(Lb)
Pound grade
(Class)		 150 3.0 2.2
300 7.5 5.5
600 15.0 11.0
900 22.5 16.5
1500 37.5 27.5
2500 63.0 46.2

 

 

 

Technical specification

 

Structural formation Dual-disc swing type check valve
Design standard GB/T 12224
Face to face GB/T 15188.2
Flanged ends JB/T 79、GB/T9113、HG20592
Test& inspection JB/T9092

 

Notes: The sizes of valve connecting flange and butt-welding terminas can be designed according to customer's requirement.

 

 

 

Major parts material form

 

No. Part name Material
1 Body WCB、CF8、CF8M、CF8C、CF3、CF3M
2 Disc WCB、CF8、CF8M、CF8C、CF3、CF3M
3 Pivot 1Cr13、2Cr13、1Cr18Ni9Ti、0Cr18Ni12Mo2Ti
4 Spring 4Cr13、60Si2Mn、1Cr18Ni9Ti、0Cr18Ni12Mo2Ti

 

 

 

Main size of outside & weight

 

Model: H76H、H76Y

 

PN
(MPa)		 DN
(mm)		 Dimensions (mm) Weight
(kg)		 PN
(MPa)		 DN
(mm)		 Dimensions (mm) Weight
(kg)		 PN
(MPa)		 DN
(mm)		 Dimensions (mm) Weight
(kg)
L D L D L D
1.0 50 60 109 2 1.6 50 60 109 2 2.5 50 60 109 2
65 67 129 3 65 67 129 3 65 67 129 3
80 73 144 4.2 80 73 144 4.2 80 73 144 4.2
100 73 164 6.2 100 73 164 6.2 100 73 170 6.2
125 86 194 7.5 125 86 194 7.5 125 86 197 9
150 98 220 11.5 150 98 220 11.5 150 98 227 12.5
200 127 275 20.2 200 127 275 20.2 200 127 287 23
250 146 330 31 250 146 332 32 250 146 343 40
300 181 380 48.2 300 181 387 51 300 181 403 55
350 184 440 72.5 350 184 447 73 350 184 460 82
400 190 492 104.5 400 190 498 108 400 191 518 118
450 203 542 151 450 203 558 160 450 203 568 212
500 219 597 180 500 219 620 200 500 219 624 240
600 222 698 300 600 222 734 320 600 222 734 412

 

 

 

 

Technical specification

 

Structural formation Dual-disc swing type check valve
Design standard GB/T 12224
Face to face GB/T 15188.2
Flanged ends JB/T 79、GB/T9113、HG20592
Test& inspection JB/T9092

 

Notes: The sizes of valve connecting flange and butt-welding terminas can be designed according to customer's requirement.

 

 

 

Major parts material form

 

No. Part name Material
1 Body WCB、CF8、CF8M、CF8C、CF3、CF3M
2 Disc WCB、CF8、CF8M、CF8C、CF3、CF3M
3 Pivot 1Cr13、2Cr13、1Cr18Ni9Ti、0Cr18Ni12Mo2Ti
4 Spring 4Cr13、60Si2Mn、1Cr18Ni9Ti、0Cr18Ni12Mo2Ti

 

 

 

Main size of outside & weight

 

Model: H76H、H76Y

 

PN
(MPa)		 DN
(mm)		 Dimensions (mm) Weight
(kg)		 PN
(MPa)		 DN
(mm)		 Dimensions (mm) Weight
(kg)		 PN
(MPa)		 DN
(mm)		 Dimensions (mm) Weight
(kg)
L D L D L D
4.0 50 60 109 3.5 6.4 50 60 115 3.5 10.0 50 60 122 4
65 67 129 5 65 67 140 5 65 67 147 6
80 73 144 7.2 80 73 150 7.2 80 73 157 8
100 73 170 9.3 100 79 177 12 100 79 183 12
125 86 197 16 125 105 213 22 125 105 220 21
150 98 227 18 150 137 250 34 150 137 260 34
200 127 293 30 200 161 313 48 200 161 324 48
250 146 355 52 250 213 364 77 250 213 394 77
300 181 420 87 300 229 424 112 300 229 458 112
350 222 478 121           16.0 50 70 143 7
400 232 549 162           65 83 163 10
                    80 83 178 15
                    100 102 210 25
                    125 110 249 30
                    150 159 282 43
                    200 206 358 55

 

 

 

 

Technical specification

 

Structural formation Dual-disc swing type check valve
Design standard API 594
Face to face ASME B16.0
Flanged ends ASME B16.5
Test& inspection API 598

 

Notes: The sizes of valve connecting flange and butt-welding terminas can be designed according to customer's requirement.

 

 

 

Major parts material form

 

No. Part name Material
1 Body ASTM A216-WCB、ASTM A351-CF8、CF8M、CF8C、CF3、CF3M
2 Disc ASTM A216-WCB、ASTM A351-CF8、CF8M、CF8C、CF3、CF3M
3 Pivot ASTM A182Gr.F6a、ASTM A182 F22、ASTM A182-F304、F316、F321、F304L、F316L
4 Spring AISI 9260、AISI6150、ASTM A182-F304、F316、F321、F304L、F316L

 

 

 

Main size of outside & weight

 

Model: H76H、H76Y

 

Class PN
(MPa)		 NPS
(in)		 Dimensions (mm) Weight
(kg)		 Class PN
(MPa)		 NPS
(in)		 Dimensions (mm) Weight
(kg)		 Class PN
(MPa)		 NPS
(in)		 Dimensions (mm) Weight
(kg)
L D L D L D
150 50 2 60 103 2 300 50 2 60 110 3.5 600 50 2 60 110 3.5
65 2 ¹/₂  67 122 3.2 65 2 ¹/₂  67 148 5 65 2 ¹/₂  67 129 5
80 3 73 135 4 80 3 73 248 7 80 3 73 148 7
100 4 73 173 6 100 4 73 180 10 100 4 79 192 12
125 5 86 196 9 125 5 86 215 18.5 125 5 105 240 22.5
150 6 98 222 12 150 6 98 250 19 150 6 137 265 35
200 8 127 279 22 200 8 127 307 33 200 8 165 319 45
250 10 146 339 38 250 10 146 361 54 250 10 213 399 77
300 12 181 409 54 300 12 181 422 88 300 12 229 456 110
350 14 184 450 80 350 14 222 485 128 350 14 273 489 135
400 16 191 514 118 400 16 232 539 169 400 16 305 562 163
450 18 203 549 210             900 50 2 70 142 6.5
500 20 219 606 240             65 2 ¹/₂  83 164 9
600 24 222 717 410             80 3 83 167 14
                        100 4 102 205 24
                        150 6 159 288 43
                        200 8 206 358 56

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