Hose Diaphragm Float Valves DN 20 - DN 80
type 500.501

Range of application:
acids, alkaline solutions, aggressive liquids, water, waste water, sludges, liquids containing solids, crystallizing and highly viscous media etc.

Fig. 501

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Construction:
free and smooth opening passage,
without stuffing box,
with interchangeable rubber lining,
with controlled operation,
closing when the float rises,
without float and float rod (can be delivered on demand against additional charge).

Materials:
see table

Operating pressure:
DN 20 - 80 max. 6 bar

Flange connection:
DIN 2501, PN 16,
DIN 2533 / EN 1092-2, PN 16


	Special constructions: rubber lining in quality NR food or heat resistan, " in quality Perbunan NBR or Neoprene CR, " in quality Butyll lR, Hypalon CSM or EPDM. Cylindrical float in special stainless steel, copper and steel rubberized, float rod in special stainless steel and steel rubberized.

DN	L	ØD	H	H₁	A	B	B ¹)	C	G	X	weight appr. kgs
20	150	105	250	270	60	1000	128	1000	180	410	6,5
25	160	115	245	270	60	1000	128	1000	180	450	7,5
32	180	140	260	290	60	1000	134	1000	190	560	9,5
40	200	150	305	340	70	1000	155	1000	230	470	18
50	230	165	340	375	80	1000	178	1000	240	437	18,5
65	290	185	380	420	75	1000	240	1000	260	470	27
80	310	200	405	455	90	1000	245	1000	290	600	33
dimensions in mm ¹) max. valve width (not drawn)

float measures E and F at max. working pressure in bar ²)
DN	1	2	3	4	5	6
20	280	305	305	340	380	380
25	305	340	340	380	380	380
32	305	340	340	380	380	380
40	340	380	380	420	420	460
50	340	380	380	420	460	460
65	420	460	500	500	600	600
80	420	460	500	600	600	600
dimensions in mm ²) smaller floats for longer lever arms on request

part	designation	material
1	upper part of the body ¹)	cast iron GG 25
2	lower part of the body ¹)	cast iron GG 25
3	rubber lining	NR
4	pressure part	cast iron GGG
5	divided ring	steel
6	divided ring	cast iron GG 25
7	stem	brass
8	fork piece	gunmetal
9	lever	steel
10	float rod	stainless steel
11	float	stainless steel/copper
12	holding disc / screw	steel
¹) parts 1 and 2 to be ordered together only.

Please quote the medium, concentration, temperature,
max. and min. working pressure in inquiries and orders.

We reserve the right to alter technical data.

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Hose Diaphragm Float Valves DN 20 - DN 80type 500.501

Hose Diaphragm Float Valves DN 20 - DN 80
type 500.501