* - AVK International

Integral seat, IP67 gearbox, plate disc, long, DN150-600

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Henrik Steen Christensen

Product Manager, butterfly valves

Double eccentric butterfly valve to EN 593 w. integral seat and IP67 gearbox w. handwheel 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 756/100-104
Connection:	Flanged
Material:	Ductile Iron
DN:	DN150 - DN600
PN:	PN10/16
Closing direction:	Clockwise to Close

Features

The tilted disc releases the compression of the disc sealing after a few degrees of opening resulting in low operating torque
The disc seal profile and rubber quality ensure low closing torques
All rubber parts are multi approved
Seal retainer ring of stainless steel
The threaded bolt holes in the disc are corrosion protected with O-rings
Machined and epoxy coated ductile iron seat integrated in the body
Shaft of stainless steel with self-lubricating bearings
The shaft ends are corrosion protected with a stainless steel security plate and a gasket
Replaceable shaft sealing with an EPDM O-ring on a stainless steel ring, a back-up EPDM O-ring in the housing, and a flat NBR gasket
Body and disc of ductile iron with fusion bonded epoxy coating to DIN 3476-1 and EN 14901, GSK approved, RAL 5017

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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	D mm	L mm	L1 mm	L2 mm	H2 mm	W1 mm	W2 mm	W3 mm	W4 mm	W5 mm	Theoretical weight/kg
756-0150-1-14000	150	PN10/16	250	210	-	-	201	155	263	-	-	276	37
756-0200-1-04	200	PN10	250	230	-	-	227	182	279	-	-	276	51
756-0200-1-14	200	PN16	250	230	-	-	227	182	279	-	-	276	51
756-0250-1-04	250	PN10	250	250	-	1	261	215	313	-	6	276	71
756-0250-1-14	250	PN16	250	250	-	1	261	215	313	-	6	276	71
756-0300-1-04	300	PN10	400	270	1	12	292	242	343	6	104	306	100
756-0300-1-14	300	PN16	400	270	1	12	292	242	343	6	104	306	106
756-0350-1-04	350	PN10	400	290	20	26	318	272	369	151	173	306	128
756-0350-1-14	350	PN16	400	290	20	26	318	272	369	151	173	306	134
756-0400-1-04	400	PN10	400	310	35	41	349	302	403	215	232	306	166
756-0400-1-14	400	PN16	400	310	35	41	349	302	403	215	232	306	166
756-0450-1-04	450	PN10	500	330	48	55	390	332	440	267	284	416	211
756-0450-1-14	450	PN16	500	330	48	55	390	332	440	267	284	416	219
756-0500-1-04	500	PN10	400	350	63	69	417	338	477	322	335	306	206
756-0500-1-14	500	PN16	500	350	63	69	427	370	496	322	335	416	282
756-0600-1-04	600	PN10	600	390	94	100	476	393	546	426	437	416	285
756-0600-1-14	600	PN16	600	390	94	100	503	435	586	426	437	450	426

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Components

1.	Body	Ductile iron GJS-500-7 (GGG-50)
2.	Drive shaft	Stainless steel 431
3.	Bearing	Bronze / PTFE composite
4.	O-ring	EPDM rubber
5.	Bolt, socket head	Stainless steel A2
6.	Cover	Stainless steel
7.	Gasket	EPDM rubber
8.	Key	Stainless steel A2
9.	Set screw	Stainless steel A2
10.	Gasket	EPDM rubber
11.	End cover	Stainless steel
12.	Screw	Stainless steel A2
13.	Disc	Ductile iron GJS-500-7 (GGG-50)
14.	Stub shaft	Stainless steel 431
15.	Spacer	Bronze
16.	Thrust bearing	Bronze
17.	End plate	Ductile iron GJS-500-7 (GGG-50)
18.	Washer	Stainless steel A2
19.	Bolt	Stainless steel A2
20.	Screw	Stainless steel A2
21.	O-ring	EPDM rubber
22.	O-ring	EPDM rubber
23.	Gasket	EPDM rubber
24.	Nut	Stainless steel A2
25.	O-ring	EPDM rubber
26.	O-ring	EPDM rubber
27.	Screw	Stainless steel A2
28.	Seal retainer ring	Stainless steel
29.	Seal ring	EPDM rubber
30.	Gearbox	Cast iron