Check Valves

Here you can find a list of all our Gate Valve

Click to enlarge

Full RubberLined Wafer Type Double Door Check Valve

Fig. 5316

Valve Standard
Comply with DIN 3202

Pressure Temperature Ratings:

Working pressure	16bar/25bar
Testing Pressure	Shell:24bar/37.5bar Seal:17.6bar/27.5bar
Working Temperature	-20°C to 110°C EPDM -10°C to 80°C NBR
Suitable Media	Water,Oil&Gas

Material Specification:

Part	Material	ASTM Spec
Body	Ductile Iron	A536 65-45-12
Disc	Stainless Steel Stainless Steel Bronze Bronze	A351 CF8 A351 CF8M B148 C95400 B148 C95800
Stem	Bronze Stainless Steel Monel Stainless Steel Inconel	BS1400 AB2
Seat	EPDM / NBR

NOTE :
There is a Screw Eye for DN200 and above size

Dimensions(mm/inch):

DN	mm inch	50 2	65 2½	80 3	100 4	125 5	150 6	200 8	250 10
L	mm inch	43	46	64	64	70	76	89	114

DN	mm inch	300 12	350 14	400 16	450 18	500 20	600 24	700 28
L	mm inch	114	127	140	152	152	178	229

Dual-Plate Wafer Check Valve

Fig. 5309

Features
– Spring loaded dual-plate pattern
– Vulcanized seat

Face to Face Standard
DIN 3202 K3

Working Pressure
16 Bar

Material Specification:

Part	Material	Specification
Body	Cast Iron Ductile Iron	A 126 Class B A536 Gr.65-45-12
Disc	Ductile Iron Stainless Steel Stainless Steel	A536 Gr.65-45-12 A351 CF8 A351 CF8M
Shaft	Stainless Steel Stainless Steel Stainless Steel	A276 410 A276 304 A276 316
Seat	EPDM / NBR	-
Spring	Stainless Steel Stainless Steel	A276 304 A276 316
Gasket	PTFE	-
Lifting Ring*	Carbon Steel	-

NOTE :
*Lifting ring is only for valve of 8" and above.

Click to enlarge

Flange Type Swing Check Valve-DIN Standard

Fig. 5201(Metal Seated); 5202(Resilient Seated)

Valve Standard
Comply with EN DIN3202 F6

Pressure Temperature Ratings:

Working pressure	16bar
Testing Pressure	Shell:24bar Seal:17.6bar
Working Temperature	-10°C to 120°C
Suitable Media	Water,Oil&Gas

Material Specification:

Part	Material	Spec.
Body	Cast Iron	EN-GJL-250
Disc	Cast Iron	EN-GJL-250
Seat Ring	Bronze
Disc Ring(5201)	Bronze
Disc Ring(5202)	EPDM

Dimensions(mm/inch):

DN	mm inch	40 1-1/2	50 2	65 2½	80 3	100 4	125 5	150 6	200 8	250 10	300 12
L	mm inch	180	200	240	260	300	350	400	500	600	700

Click to enlarge

Flange Type Lifting Check Valve

Fig. 5203

Valve Standard
Face-to-face Dimension Conforms to DIN 3202 F1 series

Pressure Temperature Ratings:

Working pressure	16bar
Testing Pressure	Shell:24bar Seal:17.6bar
Working Temperature	-10°C to 120°C
Suitable Media	Water,Oil&Gas

Material Specification:

Part	Material	Spec.
Body	Cast Iron	EN-JL 1040
Bonnet	Cast Iron	EN-JL 1040
Disc/Stem	Stainless Steel Cast Iron	BS970 420S37 EN-JL1040
Disc Ring	Stainless Steel	BS970 420S37
Seat Ring	Stainless Steel	BS970 420S37
Gasket	Graphite	Non-Asbestos
Spring	Stainless Steel	BS970 304S15
Bushing	Brass	EN 12165 W603N

Dimensions(mm/inch):

DN	mm inch	15 1/2	20 3/4	25 1	32 1-1/4	40 1-1/2	50 2	65 2-1/2	80 3	100 4	125 5	150 6	200 8	250 10	300 12
L	mm inch	130	150	160	180	200	230	290	310	350	400	480	600	730	850
L	mm inch	64	68	81	95	100	113	128	148	162	190	220	260	318	378

Click to enlarge

Ball Check Valve

Fig. 5109

Pressure Temperature Ratings:

Working pressure	16bar
Testing Pressure	Shell:24bar Seal:17.6bar
Suitable Media	Water,Oil&Gas

Material Specification:

Part	Material	ASTM Spec
Body	DI	A536 60-40-18
Ball for DN50~DN100	AL+EPDM
Ball for DN125~DN300	DI+EPDM
Cover	DI	A536 60-40-18
Ring	EPDM
Gasket	Graphite	Non-Asbestos
Bolt	SS304	AISI304

Note:
Face to face according to EN558-1 basic series 48 except DN350

Dimensions(mm/inch):

DN	50 2	65 2-1/2	80 3	100 4	125 5	150 6	200 8	250 10	300 12	350 14
L	200	240	260	300	350	400	500	600	700	800
H〔open〕	186	211	245	282	333	380	660	582	721	820
D	165	185	200	220	250	285	340	400	455	505