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LV-09
Dual Plate Check Valve
Basic Design : API 594
Body Wall Thickness : API 594
Pressure Rating : ASME B16.34
Face To Face : API 594 or API 6D
Body Bore Size : ASME B16.34
- Flange Size :
ASME B16.5 for 24" & below size /
ASME B16.47 Series "A" or MSS-SP-44(For 26" & above size)
API 605 Series "B"(For 26" & above size)
- Inspection And Testing : API 598 / Sour Service(NACE MR 0175 or MR 0103)
- Surface Quality Visual Method : MSS-SP-55
- Finishes For Contact Faces of Flanges : ASME B16.5 or MSS-SP-6
- Marking Standard : MSS-SP-25
Features

MATERIAL LIST

ASTM Cast Steel Forged Steel
Carbon Steel A216-WCB A105
Alloy Steel
For High Temperature		 A217-WC6 A182-F11
A217-WC9 A182-F22
A217-C5 A182-F5
A217 C12 A182-F9
A217-C12A A182-F91
Alloy Steel
For Low Temperature		 A352-LCB A350-LF1
A352-LCC A350-LF2
Stainless Steel A351-CF8 A182-F304
A351-CF8M A182-F316
A351-CF3 A182-F304L
A351 CF3M A182-F316L
A351-CF8C A182-F347
A351-CK20 A182-F310
A351-CG8M A182-F317
A351-CN7M B462
Duplex Stainless Steel A890-4A(CD3MN) A182-F51
A890-5A(CE3MN) A182-F53
A890-6A(CD3MWCuN) A182-F55
Special
Alloy Steel		 A494-M35-1(MONEL400) B564
A494-N12MV
(HASTELLOY B)		 B564
A494-CW12MW
(HASTELLOY C276)		 B564
A494-CY40
(INCONEL 600)		 B564
A494-CW6MC
(INCONEL 625)		 B564

CLASS & SIZE

VALVE TYPE CLASS SIZE
Double
Flanged Type		 150# 2"~24"
300# 2"~24"
600# 2"~24"
900# 2"~24"

FLOOR PLAN

LV-09.gif

MATERIAL LIST

NO. DESCRIPTION MATERIAL Q’TY
CARBON STEEL STAINLESS STEEL
01 BODY A216 WCB A351 CF8M 1
02 PLATE A217 CA15 A351 CF8M 2
03 TORSION SPRING STS 316WPA STS 316WPA 1
04 DISC PIN A276 316 A276 316 1
05 DISC PIN PLUGS A276 316 A276 316 2
06 STOPPER PIN A276 316 A276 316 1
07 STOPPER PIN PLUGS A276 316 A276 316 2
08 WASHER A276 316 A276 316 4
Size Spring (Q’ty) Spring Material
1 ½”~5” 1ea Stainless steel & Inconel X-750
6”~22” 2ea
24” and over 4ea

DIMENSIONS  ANSI CLASS: 150#

VALVE SIZE Face to Face(mm) Outer Diameter(Ø) Inner Diameter(Ø) Weight(kgf) CS.
NPS(in) DN(mm) L ØD Ød WT(kg)
12 300 181 483 300 125
14 350 184 533 339 144
16 400 191 597 387 176
18 450 203 635 438 210
20 500 219 699 487 270
24 600 222 813 579 409

DIMENSIONS  ANSI CLASS: 300#

VALVE SIZE Face to Face(mm) Outer Diameter(Ø) Inner Diameter(Ø) Weight(kgf) CS.
NPS(in) DN(mm) L ØD Ød WT(kg)
12 300 181 521 300 153
14 350 222 584 339 207
16 400 232 648 387 301
18 450 264 711 438 392
20 500 292 775 487 489
24 600 318 914 579 756

DIMENSIONS  ANSI CLASS: 600#

VALVE SIZE Face to Face(mm) Outer Diameter(Ø) Inner Diameter(Ø) Weight(kgf) CS.
NPS(in) DN(mm) L ØD Ød WT(kg)
12 300 229 559 300 239
14 350 273 603 339 378
16 400 305 686 387 451
18 450 362 743 438 560
20 500 368 813 487 762
24 600 438 940 579 1143

DIMENSIONS  ANSI CLASS: 900#

VALVE SIZE Face to Face(mm) Outer Diameter(Ø) Inner Diameter(Ø) Weight(kgf) CS.
NPS(in) DN(mm) L ØD Ød WT(kg)
12 300 292 610 300 347
14 350 356 641 339 470
16 400 384 705 387 610
18 450 451 787 438 843
20 500 451 857 487 1782
24 600 495 1041 579 1750