* - AVK International

Ductile iron, DN50-600

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AVK headquater in Skovby Galten, Denmark

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AVK International A/S

Bizonvej 1, Skovby, 8464 Galten, Denmark

Ball check valve with flanges for wastewater treatment and neutral liquids to max. 70° C

AVK ball check valves are self-cleaning and with full bore. The ball rotates during operation eliminating the risk of impurities getting stuck on the ball. The full and smooth bore ensures full flow with low pressure loss and eliminates the risk of deposits at the bottom. AVK ball check valves are available with flanges and internal threads. They are delivered with NBR lined ball as standard and optionally with ball of polyurethane available in different weights.

Variant 53/35-003
Connection:	Flanged
Material:	Ductile Iron
DN:	DN50 - DN600
PN:	PN10

Features

Self-cleaning construction, where the ball rotates during operation eliminating the risk of impurities getting stuck on the ball
Full bore ensures low pressure loss and minimum back pressure
Smooth bore eliminates the risk of deposits at the bottom
NBR lined ball of steel in DN50 up to DN100, ductile iron from DN125 up to DN400 and cast aluminum in DN500. In DN600 the ball is of cast aluminum with PUR liner. The rubber hardness is optimised to prevent the ball from getting stuck in the seat.
The ball is optionally available in polyurethane suitable for abrasive media and if different ball weights are necessary to prevent vibration and water hammer
Compact design and low weight
Bolts and nuts of stainless steel and body and cover of ductile iron with epoxy coating internally and externally according to AVK coating standard

Downloads

Datasheet

Appendix

Tender Text

Certificate(s)

Installation, Operation & Maintenance

Animation

AVK_ball_check_valve_animation.mp4

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AVK ref. no.	DN mm	Product PN Class	Flange drilling	L mm	H mm	Theoretical weight/kg	Notes
53-050-35-1007	50	PN10	PN10/16	200	101	7.5
53-065-35-1007	65	PN10	PN10/16	240	148	10
53-080-35-1007	80	PN10	PN10/16	260	148	12
53-100-35-1007	100	PN10	PN10/16	300	182	16
53-125-35-1007	125	PN10	PN10/16	350	251	35
53-150-35-1007	150	PN10	PN10/16	400	251	32
53-200-35-0007	200	PN10	PN10	500	333	68
53-200-35-1007	200	PN10	PN16	500	333	68
53-250-35-0007	250	PN10	PN10	600	406	93
53-250-35-1007	250	PN10	PN16	600	406	93
53-300-35-0007	300	PN10	PN10	700	480	124
53-300-35-1007	300	PN10	PN16	700	480	124
53-350-35-0007	350	PN10	PN10	800	571	231
53-350-35-1007	350	PN10	PN16	800	571	231
53-400-35-0007	400	PN10	PN10	900	657	416
53-400-35-1007	400	PN10	PN16	900	657	416
53-500-35-0007	500	PN10	PN10	1100	930	712	Approximate TÜV test
53-600-35-0207	600	PN10	PN10	1300	1010	1200	Approximate TÜV test. Supplied with PUR lined ball as standard

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Components

1.	Cover	Ductile iron GJS-500-7
2.	Bolt	Stainless steel A2
3.	Washer	Stainless steel A2
4.	Nut	Stainless steel, A4 acid resistance, w. delta seal
5.	O-ring	NBR rubber
6.	Body	Ductile iron GJS-500-7
7.	Ball	NBR rubber line on a metal core