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Shanghai Focus-united Group Co., Ltd
Tel：021-31200210
Fax：021-31200211
Mobile Phone：18521350577
Contacts：Mr. Li
E-mail：sales@focus-united.com
Addr：No.1644 Husong Road,Fengxian District,Shanghai.

Product Details

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Wafer Check Valve

Stable Quality
Reasonable Price
Fast Delivery
Good after sales

Shanghai Focus-united Group Co., Ltd
Tel: 021-31200210
Fax: 021-31200211
Addr:HuSong Road, FengXian Area, ShangHai

Product Manual

Wafer Check Valve

Comparison between Wafer Check Valve and Flange Single-disc Swing Check Valve

Structure Form H76 Dual Disc Wafer Swing Check Valves H44 Single Disc Flanged Swing Check Valves

Water hammer pressure Small, Short disc travel and Spring assistant can make the valves move more quickly to the closed position Heavy, Long disc travel result in the valves need more closing time

H76 type check valves, its water hammer pressure is only 1/2~1/5 of that H44 type

Size and Weight All of the short face to face dimension, small volume and light weight are result in the convenience of valves installation, transit, storage and pipe disposal and saving in initial material and cost. The valves are long face to face dimension, large volume and heavy weight

Face to face dimension of H76 is only 1/4~1/6 of that of H44 and the weight of H76 is only 1/4~1/10 of that H44

Liquid Resistance Small, Liquid resistance coefficient of the valves is 2.6~0.7 which will reduce along with the accretion of the valves nominal diameter Small, Liquid resistance coefficient of the valves is 1.3~3.Under low pressure working conditions the disc can not full open and the liquid resistance coefficient is large. The liquid resistancewillincreasealong with the accretion of valves nominal diameter

Installation Both vertical installation and horizontal installation are optional. Lighter weight will make the valves without support. Both vertical installation and horizontal installation are optional. Heavy weight of large bore valves should set with seat.

Opening pressure Small, the disc can full open under less pressure difference Heavy, the disc will full open only under large pressure difference

Reliability The valves with unitary simple frame have little impact force during closing. It gets small water hammer pressure, long usage life and high reliability Large impact force and water hammer pressure will damage the valves during closing

Main Dimensions & Weight Classs 150

Pressure / Flange standard Nominal pipe size Dimension Weight (kg) Pipe Flange

NPS DN L D1 D2 D D3 Bolt No. Stud Dia (d) Stud Length (L1)

in mm RF RJ

CLASS150 PN2.0/ASME B16.5 2 50 60 103 56 51 2 120.5 4 5/8 M16 140 155

2 1/2 65 67 122 73 65 3 139.5 4 5/8 M16 150 165

3 80 73 135 88 80 4 152.5 4 5/8 M16 160 175

4 100 73 173 108 102 6 190.5 8 5/8 M16 170 185

5 125 86 195 132 127 8 216 8 3/4 M20 190 205

6 150 98 220 160 152 13 241.5 8 3/4 M20 205 220

8 200 127 277 210 203 25 298.5 8 3/4 M20 240 255

10 250 146 337 266 254 39 362 12 7/8 M24 270 285

12 300 181 407 310 305 54 432 12 7/8 M24 310 325

14 350 184 448 355 350 80 476 12 1 M27 325 340

16 400 191 512 405 400 117 540 16 1 M27 340 355

18 450 203 547 455 450 138 578 16 1 1/8 M30 365 380

20 500 219 604 505 500 163 635 20 1 1/8 M30 385 400

24 600 222 715 605 600 331 749.5 20 1 1/4 M33 405 420

CLASS150 PN2.0/ ASME B16.47AMSS SP-44 26 650 222 770 650 633 380 806.5 24 1 1/4 M33 450

28 700 305 827 700 700 400 863.5 28 1 1/4 M33 535

30 750 305 878 750 746 440 914.5 28 1 1/4 M33 545

32 800 305 935 800 796 580 978 28 1 1/2 M39 3 570

36 900 368 1045 894 874 660 1086 32 1 1/2 M39 3 650

40 1000 432 1167 985 976 890 1200 36 1 1/2 M39 3 710

42 1050 432 1213 1055 1050 980 1257.5 36 1 1/2 M39 3 730

44 1100 432 1274 1070 1070 1150 1314.5 40 1 1/2 M39 3 730

48 1200 524 1397 1205 1166 1450 1422.5 44 1 1/2 M39 3 840

54 1350 591 1545 1315 1312 2300 1594 44 1 3/4 M45 3 950

56 1400 591 1602 1370 1360 2800 1651 48 1 3/4 M45 3 955

60 1500 660 1701 1470 1458 3220 1759 52 1 3/4 M45 3 1040

Ask sales for more detial.

Structure Form	H76 Dual Disc Wafer Swing Check Valves	H44 Single Disc Flanged Swing Check Valves
Water hammer pressure	Small, Short disc travel and Spring assistant can make the valves move more quickly to the closed position	Heavy, Long disc travel result in the valves need more closing time
Water hammer pressure	H76 type check valves, its water hammer pressure is only 1/2~1/5 of that H44 type
Size and Weight	All of the short face to face dimension, small volume and light weight are result in the convenience of valves installation, transit, storage and pipe disposal and saving in initial material and cost.	The valves are long face to face dimension, large volume and heavy weight
Size and Weight	Face to face dimension of H76 is only 1/4~1/6 of that of H44 and the weight of H76 is only 1/4~1/10 of that H44
Liquid Resistance	Small, Liquid resistance coefficient of the valves is 2.6~0.7 which will reduce along with the accretion of the valves nominal diameter	Small, Liquid resistance coefficient of the valves is 1.3~3.Under low pressure working conditions the disc can not full open and the liquid resistance coefficient is large. The liquid resistancewillincreasealong with the accretion of valves nominal diameter
Installation	Both vertical installation and horizontal installation are optional. Lighter weight will make the valves without support.	Both vertical installation and horizontal installation are optional. Heavy weight of large bore valves should set with seat.
Opening pressure	Small, the disc can full open under less pressure difference	Heavy, the disc will full open only under large pressure difference
Reliability	The valves with unitary simple frame have little impact force during closing. It gets small water hammer pressure, long usage life and high reliability	Large impact force and water hammer pressure will damage the valves during closing

Pressure / Flange standard	Nominal pipe size		Dimension				Weight (kg)	Pipe Flange
	NPS	DN	L	D1	D2	D		D3	Bolt No.	Stud Dia (d)		Stud Length (L1)
	NPS	DN	L	D1	D2	D		D3	Bolt No.	in	mm	RF	RJ
CLASS150 PN2.0/ASME B16.5	2	50	60	103	56	51	2	120.5	4	5/8	M16	140	155
	2 1/2	65	67	122	73	65	3	139.5	4	5/8	M16	150	165
	3	80	73	135	88	80	4	152.5	4	5/8	M16	160	175
	4	100	73	173	108	102	6	190.5	8	5/8	M16	170	185
	5	125	86	195	132	127	8	216	8	3/4	M20	190	205
	6	150	98	220	160	152	13	241.5	8	3/4	M20	205	220
	8	200	127	277	210	203	25	298.5	8	3/4	M20	240	255
	10	250	146	337	266	254	39	362	12	7/8	M24	270	285
	12	300	181	407	310	305	54	432	12	7/8	M24	310	325
	14	350	184	448	355	350	80	476	12	1	M27	325	340
	16	400	191	512	405	400	117	540	16	1	M27	340	355
	18	450	203	547	455	450	138	578	16	1 1/8	M30	365	380
	20	500	219	604	505	500	163	635	20	1 1/8	M30	385	400
	24	600	222	715	605	600	331	749.5	20	1 1/4	M33	405	420
CLASS150 PN2.0/ ASME B16.47AMSS SP-44	26	650	222	770	650	633	380	806.5	24	1 1/4	M33	450
	28	700	305	827	700	700	400	863.5	28	1 1/4	M33	535
	30	750	305	878	750	746	440	914.5	28	1 1/4	M33	545
	32	800	305	935	800	796	580	978	28	1 1/2	M39 3	570
	36	900	368	1045	894	874	660	1086	32	1 1/2	M39 3	650
	40	1000	432	1167	985	976	890	1200	36	1 1/2	M39 3	710
	42	1050	432	1213	1055	1050	980	1257.5	36	1 1/2	M39 3	730
	44	1100	432	1274	1070	1070	1150	1314.5	40	1 1/2	M39 3	730
	48	1200	524	1397	1205	1166	1450	1422.5	44	1 1/2	M39 3	840
	54	1350	591	1545	1315	1312	2300	1594	44	1 3/4	M45 3	950
	56	1400	591	1602	1370	1360	2800	1651	48	1 3/4	M45 3	955
	60	1500	660	1701	1470	1458	3220	1759	52	1 3/4	M45 3	1040