* - AVK International

Welded stainless steel seat, IP68 gearbox, for buried installation, DN150-1400

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AVK headquater in Skovby Galten, Denmark

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AVK International A/S

Bizonvej 1, Skovby, 8464 Galten, Denmark

Double eccentric butterfly valve with welded stainless steel seat and IP68 gearbox, for drinking water and neutral liquids to max. 70°C

AVK double eccentric butterfly valves are designed with tilted disc for easy operation. The disc seal is made of AVK’s drinking water approved EPDM rubber featuring an excellent compression set and thus ability to regain its original shape. The high quality GSK approved epoxy coating and the corrosion protected shaft end zones ensure high durability. The valves are suitable for bi-directional application.

Variant 756/106-025
Connection:	Flanged
Material:	Ductile Iron
DN:	DN150 - DN1400
PN:	PN10/16
Closing direction:	Clockwise to Close

Features

Fully welded stainless steel seat integrated in the body
The double eccentric design combined with a tilted disc allows release of seal compression after only few degrees of opening resulting in low operating torque
Disc firmly fixed to the shaft to prevent fluttering and a slight tilt allows for precise adjustment of the closed position
Disc seal profile and rubber quality ensure low closing torque
All rubber parts are drinking water approved by multiple institutes
Fasteners in stainless steel A2
Stainless steel shaft and seal retainer ring
All threaded connections are sealed with O-rings for protection against medium and environment
Radial bearings in self-lubricating PTFE/bronze composite
Shaft ends: DN≤600: Fitted with an end cover that seals the disc interior against corrosion. DN≥700: Fully encapsulated in the disc and fixed with O-ring sealed dowels held in place with a security plate. Key and keyway as backup
Replaceable shaft seals with two EPDM O-rings and an NBR gasket protecting against contamination from outside
Body and disc of ductile iron with fusion bonded epoxy coating 250µm RAL 5017 in compliance with DIN 3476 part 1 and EN 14901, approved by GSK and WRAS-DVGW/W270/UBA
IP68 Rotork gear, for buried purpose, operated by extension spindle. Coated black RAL9005, 250µm. Input shaft, bolts and nuts in stainless steel AISI 316

Downloads

Datasheet

Appendix

Tender Text

Certificate(s)

Installation, Operation & Maintenance

Animation

AVK butterfly 756 2024.mp4

Guidelines

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AVK ref. no.	DN mm	Flange drilling	D1 mm	L mm	L1 mm	L2 mm	H2 mm	W1 mm	W2 mm	W3 mm	W4 mm	W5 mm	Theoretical weight/kg
756-0150-1-14006047	150	PN10/16	#12.3	210	-	-	200	155	227	-	-	178	38
756-0200-1-04006047	200	PN10	#12.3	230	-	-	227	182	279	-	-	178	48
756-0200-1-14006047	200	PN16	#12.3	230	-	-	227	182	279	-	-	178	48
756-0250-1-04006047	250	PN10	#12.3	250	-	1	261	215	313	-	6	178	66
756-0250-1-14006047	250	PN16	#12.3	250	-	1	261	215	313	-	6	178	66
756-0300-1-04006047	300	PN10	#12.3	270	1	12	292	242	343	6	104	178	94
756-0300-1-14006047	300	PN16	#12.3	270	1	12	292	242	343	6	104	189	99
756-0350-1-04006047	350	PN10	#12.3	290	20	26	318	272	369	151	173	178	119
756-0350-1-14006047	350	PN16	#12.3	290	20	26	318	272	369	151	173	189	124
756-0400-1-04006047	400	PN10	#12.3	310	35	41	349	302	403	215	232	189	153
756-0400-1-14006047	400	PN16	#12.3	310	35	41	349	302	403	215	232	189	153
756-0450-1-04006047	450	PN10	#12.3	330	48	55	390	332	440	267	284	189	195
756-0450-1-14006047	450	PN16	#12.3	330	48	55	390	332	440	267	284	205	203
756-0500-1-04006047	500	PN10	#12.3	350	63	69	418	338	468	322	335	189	191
756-0500-1-14006047	500	PN16	#12.3	350	63	69	427	370	477	322	335	205	261
756-0600-1-04006047	600	PN10	#12.3	390	94	100	481	393	536	426	437	205	264
756-0600-1-14006047	600	PN16	#12.3	390	94	100	503	435	556	426	437	284	383
756-0700-1-04006047	700	PN10	#12.3	430	127	133	550	448	641	533	543	396	424
756-0700-1-14006047	700	PN16	#12.3	430	127	133	550	455	641	533	543	517	503
756-0800-1-04006047	800	PN10	#12.3	470	156	162	620	508	711	627	636	396	567
756-0800-1-14006047	800	PN16	#12.3	470	156	162	620	503	711	627	636	517	644
756-0900-1-04006047	900	PN10	#12.3	510	186	192	690	558	791	722	730	517	729
756-0900-1-14006047	900	PN16	#12.3	510	186	192	690	563	791	722	730	570	844
756-1000-1-04006047	1000	PN10	#12.3	550	216	222	770	615	871	816	824	530	953
756-1000-1-14006047	1000	PN16	#12.3	550	216	222	770	628	871	816	824	570	1103
756-1200-1-04006047	1200	PN10	#12.3	630	269	275	855	728	956	986	993	570	1409
756-1200-1-14006047	1200	PN16	#12.3	630	269	275	855	743	956	986	993	591	1684
756-1400-1-04006047	1400	PN10	#12.3	710	333	339	970	838	1071	1182	1189	570	2060
756-1400-1-14006047	1400	PN16	#12.3	710	333	339	970	843	1119	1182	1189	591	2360

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Components

1.	Gearbox	Cast iron
2.	Key	Stainless steel A2
3.	Drive shaft	Stainless steel 1.4057 (431)
4.	Body	Ductile iron GJS-500-7
5.	Radial bearing	Bronze / PTFE composite
6.	Disc cover	Stainless steel 1.4301
7.	Bolt	Stainless steel A2
8.	End cover	Stainless steel 1.4021
9.	Disc	Ductile iron GJS-500-7
10.	Bolt	Stainless steel A2
11.	Gasket	EPDM rubber
12.	Stub shaft	Stainless steel 1.4057 (431)
13.	End plate	Ductile iron GJS-500-7
14.	Bolt	Stainless steel A2
15.	Washer	Stainless steel A2
16.	Spacer	Copper alloy
17.	Axial bearing	Copper alloy
18.	O-ring	EPDM rubber
19.	Gasket	NBR rubber
20.	Seal retainer ring	Stainless steel 1.4301
21.	Seal ring	EPDM rubber
22.	Nut	Stainless steel A2
23.	Welded seat	Stainless steel AISI 309L
24.	Pin	Stainless steel 1.4021
25.	Washer	Stainless steel A2
26.	Security plate	Stainless steel 1.4301
27.	Plug	Steel
28.	Safety key	Stainless steel 1.4021
29.	Bolt	Stainless steel A2
30.	Blanking flange	Ductile iron GJS-500-7

Test/Approvals

Hydraulic test according to EN 1074-1 and 2 / EN 12266
Approved according to WRAS Certificate No. 2206003
Approved according to DIN-DVGW Certificate NW-6201BR0451 (DN≤1200)
Approved according to KIWA Certificate K 6320 (DN≤800)
Approved for drinking water according to WRAS Certificate No. 2307007 (DN900-1200)