API Wafer Type Check Valve

Specifications

Confirmed at quote

Size Range: DN50-DN1200 (NPS 2-48)
Pressure Class: Class 150, Class 300
Standards: API 6D, API 6D, DIN 3202, ASME B16.34, API 598, API 6D, ASME B16.5, ASME B16.47, API 605, MSS SP-44, ISO 7005-1, DIN 2543-2548
End connection: ASME B16.5 flange · ASME B16.47 / API 605 / MSS SP-44 flange

Available sizes

Standard DN sizes covered by this product. Confirmed at quote.

DN50 DN65 DN80 DN100 DN125 DN150 DN200 DN250 DN300 DN350 DN400 DN450 DN500 DN600 DN700 DN800 DN900 DN1000 DN1200

Configure your variant(manually adjust box on the right if you require a different spec)

Size
Pressure
End connection

Materials

All available material options per part. Click a pill to set it in the configurator.

body
disc
stem
spring

Dimensions per size(38 sizes)

Size	L	D	D2	D3	D1	num_bolts	bolt_d_in	bolt_d_mm	L1_RF	L1_RTJ	Weight
NPS 2 / DN50	60 mm	103 mm	51 mm	56 mm	120.5 mm	4	5/8 in	M16	140 mm	155 mm	2 kg
NPS 2 1/2 / DN65	67 mm	122 mm	65 mm	73 mm	139.5 mm	4	5/8 in	M16	150 mm	165 mm	3 kg
NPS 3 / DN80	73 mm	135 mm	80 mm	88 mm	152.5 mm	4	5/8 in	M16	160 mm	175 mm	4 kg
NPS 4 / DN100	73 mm	173 mm	102 mm	108 mm	190.5 mm	8	5/8 in	M16	170 mm	185 mm	6 kg
NPS 5 / DN125	86 mm	195 mm	127 mm	132 mm	216 mm	8	3/4 in	M20	190 mm	205 mm	8 kg
NPS 6 / DN150	98 mm	220 mm	152 mm	160 mm	241.5 mm	8	3/4 in	M20	205 mm	220 mm	13 kg
NPS 8 / DN200	127 mm	277 mm	203 mm	210 mm	298.5 mm	8	3/4 in	M20	240 mm	255 mm	25 kg
NPS 10 / DN250	146 mm	337 mm	254 mm	266 mm	362 mm	12	7/8 in	M24	270 mm	285 mm	39 kg
NPS 12 / DN300	181 mm	407 mm	305 mm	310 mm	432 mm	12	7/8 in	M24	310 mm	325 mm	54 kg
NPS 14 / DN350	184 mm	448 mm	350 mm	355 mm	476 mm	12	1 in	M27	325 mm	340 mm	80 kg
NPS 16 / DN400	191 mm	512 mm	400 mm	405 mm	540 mm	16	1 in	M27	340 mm	355 mm	117 kg
NPS 18 / DN450	203 mm	547 mm	450 mm	455 mm	578 mm	16	1 1/8 in	M30	365 mm	380 mm	138 kg
NPS 20 / DN500	219 mm	604 mm	500 mm	505 mm	635 mm	20	1 1/8 in	M30	385 mm	400 mm	163 kg
NPS 24 / DN600	222 mm	715 mm	600 mm	605 mm	749.5 mm	20	1 1/4 in	M33	405 mm	420 mm	331 kg
NPS 28 / DN700	305 mm	773 mm	700 mm	700 mm	795.5 mm	40	3/4 in	M20	455 mm	—	380 kg
NPS 30 / DN750	305 mm	824 mm	746 mm	750 mm	846 mm	44	3/4 in	M20	455 mm	—	425 kg
NPS 32 / DN800	305 mm	878 mm	796 mm	800 mm	900 mm	48	3/4 in	M20	460 mm	—	560 kg
NPS 36 / DN900	368 mm	983 mm	898 mm	910 mm	1009.5 mm	44	7/8 in	M24	540 mm	—	640 kg
NPS 42 / DN1050	432 mm	1142 mm	1050 mm	1055 mm	1171.5 mm	48	1 in	M27	625 mm	—	960 kg
NPS 48 / DN1200	524 mm	1302 mm	1200 mm	1205 mm	1335 mm	44	1 1/8 in	M30	740 mm	—	1400 kg
NPS 2 / DN50	60 mm	110 mm	51 mm	58 mm	127 mm	8	5/8 in	M16	155 mm	175 mm	3 kg
NPS 2 1/2 / DN65	67 mm	128 mm	65 mm	73 mm	149 mm	8	3/4 in	M20	175 mm	195 mm	4 kg
NPS 3 / DN80	73 mm	147 mm	80 mm	88 mm	168.5 mm	8	3/4 in	M20	190 mm	210 mm	6 kg
NPS 4 / DN100	73 mm	179 mm	102 mm	108 mm	200 mm	8	3/4 in	M20	195 mm	215 mm	8 kg
NPS 5 / DN125	86 mm	214 mm	127 mm	132 mm	235 mm	8	3/4 in	M20	215 mm	235 mm	15 kg
NPS 6 / DN150	98 mm	249 mm	152 mm	160 mm	270 mm	12	3/4 in	M20	230 mm	250 mm	18 kg
NPS 8 / DN200	127 mm	305 mm	203 mm	210 mm	330 mm	12	7/8 in	M24	280 mm	300 mm	31 kg
NPS 10 / DN250	146 mm	359 mm	254 mm	266 mm	387.5 mm	16	1 in	M27	315 mm	335 mm	51 kg
NPS 12 / DN300	181 mm	420 mm	305 mm	310 mm	451 mm	16	1 1/8 in	M30	365 mm	385 mm	77 kg
NPS 14 / DN350	222 mm	483 mm	350 mm	355 mm	514.5 mm	20	1 1/8 in	M30	410 mm	430 mm	117 kg
NPS 16 / DN400	232 mm	537 mm	400 mm	405 mm	571.5 mm	20	1 1/4 in	M33	435 mm	455 mm	190 kg
NPS 18 / DN450	264 mm	594 mm	450 mm	455 mm	628.5 mm	24	1 1/4 in	M33	475 mm	495 mm	200 kg
NPS 20 / DN500	292 mm	652 mm	500 mm	505 mm	686 mm	24	1 1/4 in	M33	510 mm	535 mm	265 kg
NPS 24 / DN600	318 mm	772 mm	600 mm	608 mm	813 mm	24	1 1/2 in	M39	560 mm	585 mm	410 kg
NPS 30 / DN750	368 mm	882 mm	735 mm	740 mm	921 mm	36	1 3/8 in	M36	650 mm	—	660 kg
NPS 36 / DN900	483 mm	1044 mm	873 mm	880 mm	1089 mm	32	1 5/8 in	M42	800 mm	—	1020 kg
NPS 42 / DN1050	568 mm	1196 mm	1035 mm	1045 mm	1244.5 mm	36	1 3/4 in	M45	920 mm	—	1540 kg
NPS 48 / DN1200	629 mm	1365 mm	1179 mm	1190 mm	1416 mm	40	1 7/8 in	M48	1010 mm	—	2260 kg

Approvals

API 6DAPI 598ASME B16.34ASME B16.5ASME B16.47API 605MSS SP-44ISO 7005-1DIN 2543-2548DIN 3202

Features

Short face-to-face dimensions, 1/4 to 1/8 times those of a traditional flanged check valve
Compact and lightweight, approximately 1/4 to 1/20 of the volume and weight of a traditional flanged check valve
Disc closes quickly with reduced water hammer pressure
Suitable for installation on horizontal or vertical pipelines
Fluent flow passage with low flow resistance
Sensitive actuation with good sealing effect
Short disc travel reduces impact force on valve closing
Integral structure with clean outline
Long service life with high reliability

Description

API wafer type check valve in Class 150 and Class 300 ratings, covering DN50-DN1200 (NPS 2-48). Designed and manufactured to API 6D with flanged end connections per ASME B16.5 and B16.47.