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Description.
Features.
Materials.
Documentation
Description.
Article no.
Size
Weight, g
Packaging
Box
KNR21
1/2"
158
25
100
KNR22
3/4"
212
15
60
KNR23
1"
328
12
48
Features.
№
Name of the indicator
Meaning.
1
Shutter tightness class
"А"
2
Normal service life, years
15
3
Minimum service life, cycles
4 000
4
MTBF, cycles
4 000
5
Maintainability
No.
6
Range of diameters of the conditional passage Dy
1/2" - 2" (15 - 50)
7
Conditional standard pressure PN, bar
≤ 30
8
Ratio of the area in the through section of the crane to the cross-sectional area of the supply pipeline, %
94 (full bore crane)
9
Operating temperature range, °С
-20 ~ +120
Materials.
№
Element name
Meaning.
1
Body
Brass CW617N
2
Saddle rings
Teflon P.T.F.E.
3
Stem
Brass CW614N
4
Gland seal
NBR
5
Ball lock
Brass CW614N
6
Flag handle
Steel with PVC coating Fe PO2
7
Nut for fixing the handle
Steel
