* - AVK Malaysia

Lever/weight RH side, brass-bushings, EN 558/10, SS-316 shaft, A4 bolts, EPDM, 300µm blue EP coating

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Chan Chee Leong

Senior Manager, Sales and Marketing

Check valve for drinking water and neutral liquids incl. treated waste water free of solids and fibrous impurities to max. 70°C

AVK series 41 swing check valves come with both metal and resilient seats to be installed in pumping applications to prevent back flow. The disc is connected to the shaft via a flexible bush that allows disc and valve seat to adjust exactly and secure a tight seal. All interior parts are stainless steel or coated with drinking water approved epoxy. Rubber parts are hydrocarbon resistant NBR or drinking water approved EPDM. The series 41 valves are available with either enclosed shaft end or protruding shaft end where a lever with a weight or a spring can be fitted to mitigate pressure surges.

Variant 41/22-001
Connection:	Flanged
Material:	Ductile iron
DN:	DN50 - DN300
PN:	PN 16

Features

Body and bonnet in ductile-iron
Resilient seat provides a drop tight closure and the light weight of the disc requires a minimum of force to open
Disc mounted loosely around a PA-bushing allowing it to tilt slightly in all directions and adjust exactly to the valve seat
Shaft material 1.4404 (AISI 316L) stainless steel
Stainless steel grade A4 bolts
Disc core fully vulcanized with drinking water approved EPDM
All seals in contact with the water in drinking water approved EPDM
Bonnet gasket fixed in a groove between bonnet and body to prevent blow-out
Shaft end fitted with a position indicating lever and spring to assist valve closing and avoid water hammer
300µm fusion bonded blue RAL5017 epoxy coating, approved for drinking water
Bosses on each side of the valve seat allow for installation of pressure gauge, by-pass, etc.
Shaft fitted in the bonnet allowing for easy maintenance without removing the valve from the pipeline

Downloads

Datasheet

Certificate(s)

Animation

AVK_swing_check_valve_animation.mp4

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Reference no.	Gross Price MYR	DN mm	Flange drilling	L mm	H3 mm	W1 mm	D mm	Dt mm	Dh mm	Ds mm	No. of bolts	Theoretical weight/kg
41-050-22-0180106	2,702	50	PN10/16	203	203	160	165	102	125	19	4	16
41-080-22-0180106	2,110	80	PN10/16	241	236	160	200	138	160	19	8	20
41-100-22-0180106	2,616	100	PN10/16	292	260	175	220	158	180	19	8	24
41-150-22-0180106	4,565	150	PN10/16	356	354	220	285	212	240	23	8	45
41-200-22-0080106	price on request	200	PN10	495	416	240	340	268	295	23	8	76
41-200-22-0180106	6,596	200	PN16	495	416	240	340	268	295	23	12	76
41-250-22-0080106	price on request	250	PN10	622	572	415	406	320	350	23	12	162
41-250-22-0180106	15,961	250	PN16	622	572	415	406	320	355	28	12	162
41-300-22-0080106	price on request	300	PN10	699	640	415	460	370	400	23	12	213
41-300-22-0180106	18,388	300	PN16	699	640	415	460	370	410	28	12	213

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Components

1.	Bolt	Stainless steel A4
2.	Nut	Stainless steel A4
3.	Washer	Stainless steel A4
4.	Bushing	Polyamide
5.	Disc	Steel S235JR
6.	Body	Ductile iron GJS-500-7 (GGG-50)
7.	Gasket	EPDM rubber
8.	Bolt	Stainless steel A4
9.	Pin	Stainless steel A4
10.	Hinge	Stainless steel AISI 316
11.	Key	Stainless steel A4
12.	Bonnet	Ductile iron GJS-500-7 (GGG-50)
13.	Washer	Stainless steel A4
14.	Thrust plate	Stainless steel
15.	Bushing, closed	Brass DZR
16.	Tab washer	Stainless steel A4
17.	Bolt	Stainless steel A4
18.	Shaft	Stainless steel AISI 316L
19.	O-ring	EPDM rubber
20.	O-ring	EPDM rubber
21.	Bushing, open	Brass DZR
22.	O-ring	EPDM rubber
23.	Lever	Ductile iron GJS-500-7 (GGG-50)
24.	Washer	Stainless steel A4
25.	Nut	Stainless steel A4
26.	Weight	Cast iron GJL-250 (GG-25)
27.	Screw	Stainless steel A4

Test/Approvals

Seat: 1.1 x PN (in bar), Body: 2 x PN (in bar). Operation torque test.
Approved according to WRAS Certificate No. 2312701 to max. 50°C

Standards

EN 1074-3
Face-to-face dimension according to EN 558, basic series 10
Flange drilling to EN1092, PN10/16

SWING CHECK VALVE, RESILIENT SEAT, PN10/16