8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
Pressure
（
MPa
）
-30
20
70
120
170
220
6.9MPa
-29˚C
: NSBVF30
: NSBVF10
77˚C
38˚C
5.5MPa
Fluid medium
Air, Inert gas such as Nitrogen/ Helium (no toxic), Water/ Liquid
（
*1
）
, Other
（
*1
）
Max. operating pressure（*2）
NSBVF10 model :
NSBVF30 model :
800psi (
5.5MPa
)
at temp. range -20~170°F (-29~77°C)
1000psi (
6.9MPa
)
at temp. range -20~100°F (-29~38°C)
Max. Vacuum
-29.8 in.Hg (
-101kPa
)
Operating temp. range (*2)
-20~450 °F (
-29
~+232°C
)
(No Freezing of liquid)
Specification
Temperature
（
˚ C
）
Relation of Operating Temp. & Max. Operating Pressure
⚠
Warnings
1. Conditionswhen fluid medium is liquid or chemical.
*
1. Surge pressure must be controlled lower than maximum operating pressure
when using with water and other liquids.
2.
The specification above may not be applied, depending on chemicals or
mixed gases used as fluid medium. Make sure to use PISCO products after
verifying their suitability on the user side.
3.
Liquid and chemicals are limited to those with no effect to valve material.
*
2.
Valve maximum operable pressure varies upon operating temperature. Please
refer to
the
"Relation of Operating Temp. & Max. Operating Pressure" graph
when use and
operate in
the
condition.
Construction
■
NSBVF10
■
NSBVF30
No.
①
SUS316 equivalent
②
SUS316 equivalent
③
SUS316 equivalent
④
PTFE
⑤
SUS304 equivalent
⑥
Stainless steel
⑦
Stainless steel
⑧
PTFE
⑨
PVC
⑩
SUS316 equivalent
⑪
PTFE
⑫
Washer
SUS304 equivalent
⑬
Disc spring washer
SUS304 equivalent
No.
①
SUS316 equivalent
②
SUS316 equivalent
③
SUS316 equivalent
④
PTFE
⑤
SUS304 equivalent
⑥
Stainless steel
⑦
Stainless steel
⑧
PTFE
⑨
PVC
⑩
Cover/Body
SUS316 equivalent
⑪
Gland nut
Stainless steel
⑫
Retainer seal
PTFE
⑬
Bolt
Stainless steel
⑭
Nut
Stainless steel
⑮
Spring washter
Stainless steel
⑯
Gland washer
PTFE
⑧ ①
②
③
④
⑤
⑥
⑦
⑨
⑩
⑪
①
②
③
⑥
④
⑦ ⑤
⑨
⑫
⑬
⑩
⑪
⑫
⑧
⑬
⑮ ⑭
⑯
Parts
Material
Parts
Material
Body
Stem
Ball
Thrust washer
Handle
Handle washer
Handle nut
Ball seat
Handle cover
Seat retainer
Gasket
Body
Stem
Ball
Thrust washer
Handle
Handle washer
Handle nut
Ball seat
Handle cover
※
) Other class of stainless steel is to be used for
no liquid contact portions
※
. Make sure to follow the instructions below when the fluid medium is water or liquid.
Surge pressure must be controlled lower than max. operating pressure when using water or liquid as a fluid medium.
Be sure to place Insert Ring into the tube edge when using water or liquid as a fluid medium.
The specification above may not be applied, depending on the kind of chemicals or mixed gases used as fluid
medium. Make sure to use PISCO products after verifying their suitability on the user side.
Warning
■
SUS316 Tube Fitting Specification
145psi (
1.0MPa
)
-29.5 inHg (
-100kPa
)
23 ~ 300°F
(
-5 ~ 150°C
)
（
No freezing
）
Fluid medium
Air / Water(
※
) / Others (chemicals) (
※
)
Max. operating pressure
Max. vacuum
Operating temp. range