Process Valve The valve element for the C.O. type, which has no return spring, is in an arbitrary position when air is exhausted through the ports P1 and P2. When pressurized air enters the port P1 (exhaust from the port P2), the valve element opens, and it closes when pressurized air enters the port P2 (exhaust from the port P1).
The value of the effective area S, like that of sonic conductance C, expresses the ease of flow. (3) Formula for flow rate When P2 + 0.1 0.5, choked flow P1 + 0.1 293 Q = 120 x S (P1 + 0.1) (3) 273 + T When P2 + 0.1 > 0.5, subsonic flow P1 + 0.1 293 Q = 240 x S (P2 + 0.1) (P1 P2) (4) 273 + T Conversion with sonic conductance C: S = 5.0 x C(5) Q : Air flow rate [L/min (ANR)] S : Effective
The value of the effective area S, like that of sonic conductance C, expresses the ease of flow. (3) Formula for flow rate When P2 + 0.1 0.5, choked flow P1 + 0.1 293 Q = 120 x S (P1 + 0.1) (3) 273 + t When P2 + 0.1 > 0.5, subsonic flow P1 + 0.1 293 Q = 240 x S (P2 + 0.1) (P1 P2) (4) 273 + t Conversion with sonic conductance C: S = 5.0 x C(5) Q : Air flow rate [dm3/min (ANR)], dm3
This is the same concept representing the easy to run through as sonic conductance C. (3) Formula for flow rate P1 + 0.1 P2 + 0.1 When 0.5, choked flow 293 Q = 120 x S (P1 + 0.1) .(3) 273 + t P1 + 0.1 P2 + 0.1 When > 0.5, subsonic flow 293 Q = 240 x S (P2 + 0.1) (P1 P2) .(4) 273 + t Conversion with sonic conductance C: S = 5.0 x C .(5) Q : Air flow rate [dm3/min(ANR)], dm3 (cubic decimeter
VBA4 The required time to increase tank pressure from 0.8 MPa to 1.0 MPa at 0.5 MPa supply pressure is calculated as follows. 1.0 0.5 = = 2.0 P2 P1 P2 P1 P2 P1 0.8 0.5 = = 1.6 P2 P1 1.5 0.5 = = 3.0 1.0 0.5 = = 2.0 0.8 0.5 = = 1.6 P2 P1 P2 P1 With the pressure increase ratio from 1.6 to 2.0, the time of 65 16 = 49 sec. (t) is given for 10 l tank by the graph.
VXS VXS VXB VXE (3) Formula for flow rate When P2 + 0.1 0.5, choked flow P1 + 0.1 293 Q = 120 x S (P1 + 0.1) (3) 273 + T When P2 + 0.1 > 0.5, subsonic flow P1 + 0.1 293 Q = 240 x S (P2 + 0.1) (P1 P2) (4) 273 + T Conversion with sonic conductance C: VXP VXR VXH VXF VX3 VXA S = 5.0 x C(5) Q : Air flow rate[L/min(ANR)] S : Effective area [mm2] P1 : Upstream pressure [MPa] P2 : Downstream
This is the same concept representing the easy to run through as sonic conductance C (effective area). (3) Formula of flow rate When P2 + 0.1 0.5, choked flow P1 + 0.1 293 Q = 120 x S (P1 + 0.1) (3) 273 + t When P2 + 0.1 > 0.5, subsonic flow P1 + 0.1 293 Q = 240 x S (P2 + 0.1) (P1 P2) (4) 273 + t Conversion with sonic conductance C: S = 5.0 x C(5) Q :Air flow rate[dm3/min(ANR)], dm3 (
When P2 + 0.1 b, choked flow P1 + 0.1 293 Q = 600 x C (P1 + 0.1) (1) 273 + t When P2 + 0.1 > b, subsonic flow P1 + 0.1 2 P2 + 0.1 b P1 + 0.1 Q = 600 x C (P1 + 0.1) 1 (2) 1 b 293 273 + t Q : Air flow rate [dm3/min (ANR)], dm3 (Cubic decimeter) of SI unit are also allowed to described by l (liter). 1 dm3 = 1 l .
AC200230V AC100120V 40 M5 3.24[Nm] M5 3.24[Nm] 6 AC100120V AC200230V AC100120V AC200230V L1 L1 PE PE L2 2-M5 2-M5 L2 L3 CNP1 CNP1 N N P1 P1 M4 1.2[Nm] P2 P2 M4 1.2[Nm] P P C C CNP2 D CNP2 D L11 L11 L21 L21 U U CNP3 V CNP3 V W W 9 2 9 (2) LECSS-S8 [mm] 5 40 6 6 6 (80) (170) 6 6 () CN4 CN2L CN2 CN1B CN1A CN3 CN5 CNP1 L1 L2 L3 N P1 P2 P C D L11 L21 U V W L1 L2 () L3 N P1 CNP2 P2
In contrast with the N.C., when air is exhausted from the port 10(P2), the return spring opens the valve element. Pressurized air that enters through the port 10(P2) closes the valve element. Component Parts Material Bronze No.
) (Pilot air port) Port 12(P1) (Pilot air port) e t w t Port 3(R) e r Port 3 (R) Port 2 (A) Port 1 (P) Port 23(P2) (Pilot air port) y i Port 2(A) u r y Port 1(P) t q VEX3320 (Air operated) VEX3420 (Air operated) w e q r y y t w r e u t t 12(P1), 23(P2) Port Port 3(R) y y (Pilot air port) r i Port 2(A) u r Port 1(P) t q Port 1(P) Port 2(A) Port 3(R) Component Parts No.
Example: The figure below is based on the condition of set values as P1 = 40 [kPa] and P2 = 20 [kPa].
SMC offers a variety of pressure gauges including general purpose, oil-free/external parts copper-free with limit indicator, clean series and a pressure gauge with a pressure switch. Pressure ranges vary from 0 to 1.5MPa, depending on the selected gauge. Panel mounting is possible.General purpose gauge w/limit indicator , Back or vertical side thread , Indication precision: ±3% F.S. (full
SMC offers a variety of pressure gauges?including general purpose,?oil-free/external parts copper-free with limit indicator, clean series and a pressure gauge with a pressure switch.? Pressure ranges vary from 0 to 1.5MPa, depending on the selected gauge.? Panel mounting is possible.General purpose gauge w/limit indicator , Back or vertical side thread , Indication precision: ?3% F.S. (full
The valve element of the C.O. type, which has no return spring, is in an arbitrary position when air is exhausted through the ports 12(P1) and 10(P2). When pressurized air enters the port 12(P1) (exhaust from the port 10(P2)), the valve element opens, and it closes when pressurized air enters the port 10(P2) (exhaust from the port 12(P1)). Component Parts No.
(Return spring normally open) In contrast with the N.C., when the pilot solenoid valve is not energized (or when air is exhausted from the port 10(P2) of the air operated type), the valve body is opened by the return spring. When the pilot solenoid valve is energized (or when pressurized air enters through the port 10(P2) of the air operated type), the valve body closes.
Pilot port P1 and P2 piping Please arrange P1 and P2 piping as follows according to the model.
Supply pressure verification Leak test P2(n1) > P1(n2) P2(n2) P1(n1) 10.0 to 101.0kPa CH Increases the set value 1 2 3 4 PRESSURE For normally closed P2(n1) > P1(n2) P2(n2) P1(n1) 0.1 to 1000.0MPa Decreases the set value SET P3(n3) and P4(n4) are the same as P1(n1) and P2(n2).
OUT2 P2(n2) P1(n1) Supply pressure verification Leak test CH P2(n1) > P1(n2) 10.0 to 101.0 kPa Increases the set value 1 2 3 4 PRESSURE For normally closed P2(n2) P1(n1) P2(n1) > P1(n2) 0.1 to 1000.0 MPa Decreases the set value SET P3(n3) and P4(n4) are the same as P1(n1) and P2(n2).
Supply pressure verification Leak test P2(n1) > P1(n2) P2(n2) P1(n1) 10.0 to 101.0kPa CH Increases the set value 1 2 3 4 PRESSURE For normally closed P2(n1) > P1(n2) P2(n2) P1(n1) 0.1 to 1000.0MPa Decreases the set value SET P3(n3) and P4(n4) are the same as P1(n1) and P2(n2).