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PRESSURE & NUMBER OF V-RINGS


Pressure
MPa { kgf/cm(2) }
Number of V-Rings® *b
Adapter Material
Spacer Material
VGH
VNV, VNF
Rubber-proofed
Hard Cotton
Bronze
Aluminum
Bronze
Bronze
Aluminum
Bronze
Under 3.9 { 40 } incl.
3
3
O
O
O
O
O
Over 3.9 { 40 } to 29.4 { 300 } incl.
4
4
O
O
O
O
O
Over 29.4 { 300 } to 58.8 { 600 } incl.
-
5
?
?
OO
?
OO
Over 58.8 { 600 }
-
6
X
X
OO
X
OO

OO: Most suitable
O: Suitable
?: Depends on service condition
X: Unsuitable

When the pressure goes over 58.8 Mpa { 600 kgf/cm(2) }, it is not effective to increase the number of V-Rings® *b. Use of Spacer Rings is recommended instead.

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