Swing check valve

• Feature and character
• 1.Simple and reliable,it is used to prevent fluids from flowing back.
• 2.Convenient to repair and maintain.
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• Direction
• Standards
• Designing & manufacturing are according to the regulations of ANSI 16.34,API 6D,DIN 3352 and BS 1414.
• Flange is subject to ANSI 16.5,MSS-SP-44,API 605,ISO 7005.
• Face-to-face dimension is ANSI 16.10,ISO 5752,DIN 3202.
• Pressure test is according to API 598,ISO 5208.
• *Please contact us for items made according to other standards.
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• Coding system
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•  
• Main Properties & Materials of components & parts:

  NO.	Name	Carbon steel	Alloy steel	Stainless steel
  1	Valve body	A216 WCB	A217 WC6	A315 CFB	A315 CF8M
  2	Seat	A105	A182 F304	A182 F304	A182 C314
  3	Disc	A216 WCB	A217 WC6	A315 CF8	A315 CF8M
  4	Swing arm	A216 WCB	A217 WC6	A315 CF8	A315 CF8M
  5	Pin shaft	A182 F6	A182 F6	A182 F304	A182 F314
  6	Gasket	Metal coated washer
  7	Cover	A216 WCB	A217 WC6	A315 CF8	Z315 CF8M
  Suitable mediums		Water,Steam.oil		Nitric acid	Acetic acid
  Suitable temperature		-29~425.C	-29~595.C	-196~600.C

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•  
• Dimensions
• 
• Class150

  DN NPS		50 2	65 2 1 /2	80 3	100 4	125 5	150 6	200 8	250 10	300 12	350 14	400 16	450 16	500 20	600 24
  L(RF-BW)		8	8 1/2	9 1/2	11 1/2	13	14	19 1/2	24	27 1/2	31	34	28 1/2	38 1/2	51
  L(RTJ)		8 1/2	9	10	12	13 1/2	14 1/2	20	25	28	31 1/2	34 1/2	39	39	5 1/2
  D0		6 3/4	7 1/8	7 3/8	8 1/2	9 1/2	10 1/4	11 7/8	13 7/8	15 3/4	17 3/4	19	21 1/4	25 5/8	26 3/4
  W.T.(Kg)	RFBW	15 12	26 17	27 18	42 32	69 57	124 106	124 106	200 174	310 258	428 368	555 483	775 685	835 720	1300 1150

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• Class300

  DN NPS		50 2	65 2 1 /2	80 3	100 4	125 5	150 6	200 8	250 10	300 12	350 14	400 16	450 16	500 20	600 24
  L(RF-BW)		10 1/2	11 1/2	12 1/2	14	15 3/4	17 1/2	21	24 1/2	28	33	34	38 1/2	40	53 7/8
  L(RTJ)		11 1/8	12 1/8	13 1/8	14 5/8	16 3/8	18 1/8	21 5/8	25 1/8	28 5/8	33 5/8	34 5/8	39 1/8	40 3/4	53 7/8
  D0		6 3/4	7 3/8	8 1/2	9 1/4	10 5/8	11 7/8	13 3/8	13 7/8	16 5/8	18 7/8	20 1/2	23 5/8	26 3/8	29 5/8
  W.T.(Kg)	RFBW	21 15	30 22	39 30	70 44	115 92	125 98	190 150	290 230	450 375	700 490	774 640	1000 850	1273 1100	1650 1400

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• Class600

  DN NPS		50 2	65 2 1 /2	80 3	100 4	150 6	200 8	250 10	300 12	350 14	400 16	450 16	500 20
  L(RF-BW)		11 1/2	13	14	17	26	31	33	35	39	43	47	55
  L(RTJ)		11 5/8	13 1/8	14 1/8	17 1/8	26 1/8	31 1/8	33 1/8	35 1/8	39 1/8	43 1/8	47 1/8	55 3/8
  D0		6 7/8	7 7/8	9 1/8	11 5/8	15 3/4	18 1/8	20 1/2	22 1/8	25 5/8	28 3/4	31 1/2	35 1/2
  W.T.(Kg)	RFBW	28 20	38 30	52 40	87 65	354 280	626 530	790 670	890 752	1200 1020	1600 1350	2420 2050	3150 2720

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• Class900

  DN NPS		50 2	65 2 1 /2	80 3	100 4	150 6	200 8	250 10	300 12	350 14	400 16	450 16	500 20
  L(RF-BW)		14 1/2	16 1/2	15	18	29	33	38	40 1/2	44 1/2	48	52	61
  L(RTJ)		14 5/8	16 5/8	15 1/8	18 1/8	29 1/8	33 1/8	33 1/8	40 7/8	44 7/8	48 1/2	52 1/2	61 3/4
  D0		9 7/8	10 5/8	9 1/8	12 1/4	17	18 7/8	22	24 7/8	27 5/8	29 5/8	33 1/2	39 3/8
  W.T.(Kg)	RFBW	69 60	93 78	85 70	145 120	500 385	772 600	1080 860	1380 1140	1810 1510	2400 2050	3500 3100	4700 4200

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• Class 1500

  DN NPS

  50 2

  65 2 1 /2

  80 3

  100 4

  150 6

  200 8

  250 10

  300 12

  350 14

  400 16

  450 16

  500 20

  L(RF-BW)

  14 1/2

  16 1/2

  18 1/2

  21 1/2

  32 3/4

  39

  44 1/2

  49 1/2

  54 1/2

  60 1/2

  65 1/2

  76 1/2

  L(RTJ)

  14 5/8

  16 5/8

  18 5/8

  21 5/8

  33 1/8

  39 3/8

  45 1/8

  50 1/4

  55 3/8

  61 3/8

  66 3/8

  77 5/8

  D0

  9 7/8

  10 5/8

  11 7/8

  13

  19 3/4

  22 1/8

  22 5/8

  29 5/8

  31 1/2

  35 1/2

  39 3/8

  47 1/4

  W.T.(Kg)

  RFBW

  69 60

  93 78

  120 90

  235 185

  945 785

  1275 1065

  1870 1550

  2560 2100

  3260 2700

  4080 3400

  5950 5200

  8000 7100

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