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Item 490-492-493 butterfly valve

Item 490-492-493 butterfly valve

Stainless steel butterfly valve with ISO 228/1 threaded, butt welded, DIN 11851 ends

ITEM 490
Connections: Threaded ISO 228/1,
Material: 304 S.S.
ITEM 492
Connections: DIN 11851,
Material: 304 S.S.
ITEM 493
Connections: DIN 11850 serie 1,
Material: 304 S.S.

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  • features
  • dimensions
  • materials
  • diagrams and breakaway torque

STANDARD EXECUTIONS:
- Valve manufactured in 304 (series 490-492-493) and in 316L (series 494) stainless steel.
- The valve it’s suitable for food industries.
- Working temperature: from 0°C to + 150°C
- Working pressure: PN 6
- Fluid range: food industry.
- Connections: 

  • GAS threads as per DIN/ISO 228/1;
  • DIN 11851 threads for food industry;
  • to be butt-welded as per DIN 11850-1;
  • Clamp BS 4825 (DIN 32676 C serie)
- Surface treatment: polished.

ON REQUEST:
- Threaded SMS 1146
- Threaded MACON
- Clamp DIN 32676 A serie
- Clamp ISO 2852
- For other applications, please contact our sales department.

  • ITEM 490
  • ITEM 492
  • ITEM 493

ITEM 490 ISO 228/1

   DIMENSIONS
  SIZE
A
ØB
C
D
øE
øF
DN [mm]
[inch]
DN 25
1"
68
289
58
79
25
DN 32
1" 1/4
76
349
63
85
32
DN 40
1" 1/2
76
409
65
92
40
DN 50
2"
80
529
71
105
50
DN 65
2" 1/2
82
709
81
125
65
DN 80
3"
84
8511
88
137
80
DN 100
4"
88
10411
100
157
100

ITEM 492 DIN 11851

   DIMENSIONS
  SIZE
A
ØB
C
D
øE
øF
DN [mm]
[inch]
DN 25
1"
68
52X1/6
9
58
79
25
DN 32
1" 1/4
76
58X1/6
9
63
85
32
DN 40
1" 1/2
76
65x1/6
9
65
92
40
DN 50
2"
80
78X1/6
9
71
105
50
DN 65
2" 1/2
82
95x1/6
9
81
125
65
DN 80
3"
84
110X1/4
11
88
137
80
DN 100
4"
88
130X1/4
11
100
157
100

ITEM 493 DIN 11850 SERIE 1

DIMENSIONS
SIZE
A
ØB
C
D
øE
øF
DN [mm]
[inch]
DN 25
1"
68
29
9
58
79
25
DN 32
1" 1/4
76
35
9
63
85
31
DN 40
1" 1/2
76
41
9
65
92
37
DN 50
2"
80
53
9
71
105
49
DN 65
2" 1/2
82
70
9
81
125
66
DN 80
3"
84
85
11
88
137
81
DN 100
4"
88
104
11
100
157
100

  • ITEM 490
  • ITEM 492
  • ITEM 493

ITEM 490 ISO 228/1

  ITEM 490 ISO 228/1 MATERIALS
1
Shaft
304 S.S.
1.4301
UNI X5CrNi 18 10
2
Screws
304 S.S.
1.4301
UNI X5CrNi 18 10
3*
Internal seals
Silicon


4
DiscCF8M
1.4301
UNI X5CrNi 18 10
5
Ends
304 S.S.
1.4301
UNI X5CrNi 18 10
* Components of spare part kit KGBV70...

ITEM 492 DIN 11851

ITEM 492 DIN 11851 MATERIALS
1
Shaft
304 S.S.
1.4301
UNI X5CrNi 18 10
2
Screws
304 S.S.
1.4301
UNI X5CrNi 18 10
3
Seals
Silicon


4*
Internal seals
Silicon


5
DiscCF8M
1.4301
UNI X5CrNi 18 10
6
Ends
304 S.S.
1.4301
UNI X5CrNi 18 10
* Components of spare part kit  KGBV70...

ITEM 493 DIN 11850 SERIE 1

ITEM 493 DIN 11850 SERIE 1 MATERIALS
1
Shaft
304 S.S.
1.4301
UNI X5CrNi 18 10
2
Screws
304 S.S.
1.4301
UNI X5CrNi 18 10
3*
Internal seals
Silicon


4
DiscCF8M
1.4301
UNI X5CrNi 18 10
5
Ends
304 S.S.
1.4301
UNI X5CrNi 18 10
* Components of spare part kit  KGBV70...

  BREAKAWAY TORQUES Nm
  SIZE
DN 25
1"
DN 32 1"1/4
DN 40 1"1/2
DN 50
2"
DN 65 2"1/2
DN 80
3"
DN 100
4"

PN 6 bar
7
9
15
18
29
43
65


Torque can vary depending on temperature and type of fluid; a safety factor of 1.4 must be applied. Torque can drop on high frequency of operations. The actuator/valve sizing, indicated on the following pages, are based for valves to be used with liquids or gaseous fluids, clean, and for medium temperatures. For further information, or different uses please contact our technical department.

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Ravenna (Italy), 27-29 march 2019