NVFM250-N02-08 SMC Corporation, NVFM250-N02-08 Datasheet - Page 3

• Manufacturer Part Number: NVFM250-N02-08
• Description: Valve, 5 port, manual actuator - toggle lever, 1/4 in. NPT, gas valve
• Manufacturer: SMC Corporation

Specifications of NVFM250-N02-08

• Actuator: Manual
• Brand/series: 200 Series
• Size, Port: 1⁄4 in. NPT

1. Conditions for mechanical operation
For straight and roller plunger types, there is a groove indicating
P.T. and T.T. for stroke adjustment.
Operable fluid is either air or inert gas only. It cannot be used for
corrosive gas and fluid.
When using vacuum pressure for VM100, supply vacuum
pressure to P port.
Be sure to read before handling. Refer to pages 5-12-2 to 6 for Safety lnstructions and Solenoid Valve Precautions.
Do not move the mechanical operation beyond the
operating limit position, as this could damage the
mechanical valve itself and lead to equipment mal-
function.
• Actuator stroke
VM1000
VM100
VM200
VM400
VZM500
VZM400
VFM300
VFM200
Operate the mechanism within the stroke range that has
been obtained through the formula given below. (Do not
move beyond the operating limit position.)
Operating stroke: (P.T. + 0.5 x O.T.) to (P.T. + O.T. – 0.1)
Warning
Caution
Warning
Series
Roller lever
One way roller lever
Basic
Roller lever
One way roller lever
Straight plunger
Roller plunger
Cross roller plunger
Basic
Roller lever
One way roller lever
Straight plunger
Roller plunger
Cross roller plunger
Basic
Roller lever
One way roller lever
Straight plunger
Roller plunger
Cross roller plunger
Basic
Roller lever
One way roller lever
Straight plunger
Roller plunger
Basic
Pressure Source
Mounting
Actuator
(T.T. = 2.5 mm)
T.T. = 4.8 mm
Actuator stroke
(2.2 to 2.4)
3.7 to 4.7
3.5 to 4.4
3.5 to 4.4
2.2 to 2.9
4.3 to 5.3
4.3 to 5.3
2.7 to 3.4
2.7 to 3.4
2.7 to 3.4
4.0 to 4.9
8.7 to 10.7
9.5 to 11.7
4.5 to 5.4
4.5 to 5.4
4.5 to 5.4
2.5 to 3.4
6.2 to 8.2
6.5 to 8.7
4.5 to 5.4
4.5 to 5.4
4.5 to 5.4
2.0 to 2.9
4.2 to 6.0
4.7 to 6.7
2.5 to 3.4
2.5 to 3.4
(mm)
Precautions
F.P.
O.P. (Operating Position) ····· Internal valve opening position.
T.T.P. (Total Travel Position)···· Includes over travel.
O.F. (Operating Force)········· Operating force required to initial
F.O.F. (Full Operating Force) ·· Required force to total travel
P.T.
O.T. (Over Travel)················· From initial valve operating
T.T.
This product cannot be used for applications in which the
pressure must be sealed because there will be a slight leakage.
Please consult with SMC for this type of application.
(Free Position) ············· No external force applied.
(Pre-travel) ··················· From free position to initial valve
(Total Travel) ················· From free position to total travel
Mechanical Valves
Definition of Symbol
Caution
valve opening position.
position.
operating position.
position to total travel position.
position.
Series
VM
5-6-5
S„A
V„A
S„A
V„A
VM
VR
VH
VHS