Name: AVK SWING CHECK VALVE, METAL SEATED
SKU: 2339
Availability: BackOrder

AVK SWING CHECK VALVE, METAL SEATED

Right-side lever and weight, DN 50-300, PN10/16

Metal seated swing check valve with lever and weight for drinking water and neutral liquids to max. 70°C

Reference No.

SKU: N/A Category: Non-Return Valves Tags: AVK, Blue, Drinking Water, Neutral Liquids, Non Return Valve, Non Return Valves, Valve, Valves, Water

Description

Key Features

Metal seat in gunmetal bronze for high durability
The shaft fitted in the bonnet allows for easy maintenance without removing the valve from the pipeline
Shaft in 1.4021 (AISI 420), bolts and washers in 1.4301 (AISI 304) acid-resistant stainless steel
The position indicating lever with an adjustable weight that aids the disc in closing quickly to reduce water hammer
The hinge of stainless steel for sizes ≤ DN 200; ductile iron coated with drinking water-approved epoxy for larger
Ductile iron disc covered with drinking water approved EPDM
Bonnet gasket lying in a groove between bonnet and body prevents blow-out
All seals and coatings with contact to the fluid are approved for drinking water – coating is blue, 250µm fusion bonded epoxy
Disc mounted in a flexible rubber bushing allowing it to tilt slightly in all directions and adjust exactly to the valve seat
Bosses on each side of the valve seat allow for installation of pressure gauge, by-pass, etc.
WRAS approved materials

Information

AVK series 41 swing check valves come with both metal and resilient seats. Installed in pumping applications to prevent back flow they can be used for drinking water as well as waste water. The disc is connected to the shaft via a flexible bush that allows disc and valve seat to adjust exactly. All interior parts are stainless steel or coated with drinking water approved epoxy or EPDM. The series 41 valves are available with either closed bushings or protruding shaft end where a lever with a weight or a spring can be fitted to mitigate pressure surges.

Variant 41/36-009
Connection:	Flanged
Material:	Ductile Iron
DN:	DN80 – DN300
PN:	PN 16

1.	Bolt and nut	Stainless steel A2
2.	Body	Ductile Iron GJS-500-7
3.	Washer	Stainless steel A2
4.	Disc	EPDM encaps. duct. iron
5.	Hinge	DN≤200 SS, DN≥250 DI
6.	Gasket	EPDM
7.	Face ring	Bronze CC491K
8.	O-ring	NBR
9.	Seat ring	Bronze CC491K
10.	Washer	Copper
11.	Air plug	Stainless Steel 1.4401 (316)
12.	Bonnet	Ductile Iron GJS-500-7
13.	Connector	Stainless Steel 1.4408 (316)
14.	Bushing, closed	Brass CW614N
15.	Shaft	Stainless steel 1.4021 (420)
16.	O-ring	NBR
17.	O-ring	NBR
18.	Spacer	Stainless Steel 1.4401 (316)
19.	Key	Stainless Steel 1.4401 (316)
20.	O-ring	NBR
21.	Bushing, open	Brass CW614N
22.	Lever	Ductile Iron GJS-500-7
23.	Weight	Ductile Iron GJS-500-7
24.	Screw	Stainless steel A2

Test/Approvals

Hydraulic test according to EN 1074-1 / EN 12266 |
Seat: 1.1 x PN. Body: 1.5 x PN.

Standards

Designed according to EN 1074 – 3
Face to face according to EN 558 Table 2 Basic Series 10
Standard flange drilling to EN1092 (ISO 7005-2), PN 10/16
WIMES 8.09 Compliant
Drinking Water Inspectorate Regulation 31 compliant

Additional information

Reference No.	41-080-36-01800, 41-200-36-01800, 41-250-36-01800, 41-300-36-01800
Brand	AVK
PN	PN10/PN16, PN16

Reference Nos. and Dimensions

Reference Number	DN mm	Flange Drilling	L mm	H mm	H3 mm	W mm	W1 mm	Theoretical Weight kg
41-080-36-01800	80	PN10/16	241	140	240	245	145	19
41-200-36-01800	200	PN16	495	250	420	395	230	64
41-250-36-01800	250	PN16	622	347	560	712	409	145
41-300-36-01800	300	PN16	699	395	650	715	405	195