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A8N-1, A10N-1, A13N-1, A20N-1, A25N-1, A30N-1, A40N-1, A50N-1, A20N-2, A25N-2, A30N-2, A40N-2, A50N-2, A40N-11, A50N-11, A75N-11|Pressure reducing valves A-N - Van giảm áp A-N Aichi Tokei Denki

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Model name

・A8N – A50N-1 – General-use type
・A20N – A50N-2 – High performance type
・A40N – A75N-11 – Large capacity type

Features

For industrial gas combustion equipment.

・Has a large capacity for the diameters that maintains accurate performance in a wide range of flow rates.
・Ensures stable fuel control because the second pressure supplied to the device or equipment is kept constant even as the operating flow changes.
・Built-in single soft sheet touch and balance diaphragm prevent leak to the secondary side when flow rate is zero. The pressure in the secondary side rarely changes even when the pressure in the primary side changes.
(Note: Some models do not have a balanced diaphragm.)
・Type 2 has better control with a larger main diaphragm than those of Type 1. Type 11 has larger valves to support larger capacity.

Specifications

・Pressure in the primary side P1 = 1 to 50 kPa
・Pressure in the secondary side P2 = 0.5 to 30 kPa
・Diameter = 1/4 to 3B (8 to 80 A)

Dimensions

size_image

Model

A8N-1

A10N-1

A13N-1

A20N-1

A25N-1

A30N-1

A40N-1

A50N-1

A(mm)

50

60

74

112

140

140

140

220

B(mm)

74

78

108

105

141

142

144

221

C(mm)

16

20

21

25

27

28

30

51

D(mm)

□73

□73

φ116

φ116

φ169

φ169

φ169

φ246

E

Rc1/4

Rc3/8

Rc1/2

Rc3/4

Rc1

Rc11/4

Rc11/2

Rc2

Mass (kg)

0.2

0.2

1.0

0.7

1.3

1.4

1.4

9.3

Model

A20N-2

A25N-2

A30N-2

A40N-2

A50N-2

A40N-11

A50N-11

A75N-11

A(mm)

112

140

140

140

220

200

250

340

B(mm)

135

200

201

203

281

262

318

492

C(mm)

25

27

28

30

51

53

64

120

D(mm)

φ169

φ246

φ246

φ246

φ330

φ246

φ330

φ450

E

Rc3/4

Rc1

Rc11/4

Rc11/2

Rc2

Rc11/2

Rc2

JIS 5K3B
Flange

Mass (kg)

1.5

5.5

5.5

5.5

15.0

7.0

18.0

55.0