Walther prazision 91489, Working Instruction

Page: 14 / 191

Working instruction
english
typ 91489
Description of equipment
14
6 Description of equipment
Max. 8 pressure or cooling water elements can be mounted in any combination
(sideways assembly):
Medium Type Nominal
bore
C
v
Max.
pressure
(barg)
Connection
Housing
material
Valve
(robot
side)
Valve tool
side
Compressed
air
N6/K6 10 3,75 10 G 1/2 L 90° AL
hardcoated
X -
cooling
water
N7/K7 10 3,75 10
(5-80°C)
G 1/2 L 90° Stainless
steel
X X
Extras:
Elements in other materials, elements for high pressure.
Necessary cooling water quality
- The cooling water used should be processed by a sequential array of softening, desalination,
degas and filtration equipment.
- With regards to particle contamination the cooling water should not be worse than potable
water. A cleanliness to NAS 1638 CLASS 8 (ISO 4406: 17/14) is sufficient.
The central filtration should work automatically and have a max. mesh width of 100 µm.
- The remaining hardness of the cooling water should not exceed 1° dH after processing.
(1° dH = 1.787 French hardness = 1.25 English hardness).
1° dH equals 10 mg calcium (CaO) or 7.14 mg magnesium (MgO) in 1 l water
- As protection against boiler scale and corrosion the p
h
ought to be ≥ 9.2 (= alkaline) and the
water should be degassed of carbon dioxide (CO
2
) and oxygen (O
2
)..
2 mounting locations are available for electro plugs which can either be equipped with single
plug housings or combination plug housings for different applications.
6.1 Application: welding current
Type Number
of
poles
Rated
voltage
Rated
current
Connetion
cross section
Connection
Cable-
Ø
Housing
material
Contact
material
95285-
Z05 2 + PE 630 V
630 V
630 V
∗
110 A
∗
135 A
∗
150 A
16 mm
2
25 mm
2
35 mm
2
Pg 29
Pg 29
Pg 29 24 ...
28 mm POM Silver
plated
Extras: Receptacle for primary connector 25 or 35 mm
2
instead of Pg 29 on the robot
side
*depending on cable