Speed Controller With Pilot Check Valve, ASP Series

Caution
- Product images may be representative images. Refer to the catalog for details
Product Description
Cylinder temporary stop and cylinder speed control are possible.
[Features]
・ The pilot check valve and speed controller are integrated.
・ Tube mounting direction can be freely adjusted 360°
・ Electroless nickel plating specifications as standard
・ Available in metric size and inch size
Speed Controller With Pilot Check Valve ASP Series Specifications

Speed Controller With Pilot Check Valve external appearance

Example of drop prevention circuit

JIS symbol
| Fluid | Air |
|---|---|
| Proof pressure | 1.5 MPa |
| Maximum operating pressure | 1 MPa |
| Minimum operating pressure | 0.1 MPa |
| Pilot check valve operating pressure | 50% or more of the operating pressure (however, must be 0.1 MPa or more) |
| Ambient and fluid temperature | -5 to +60°C (no freezing) |
| Applicable tubing material | Nylon, soft nylon, polyurethane |
*Use caution regarding the maximum operating pressure when using soft nylon or polyurethane tubing.
Dimensional Drawing of This Product (Metric Size)

Speed Controller With Pilot Check Valve, dimensional drawing (metric size)
(Units: mm)
| Model | d | T1 | T2 | H1 | H2 | D1 | D2 | D3 | L1 | L2 | L3 | L4*1 | L5 | A1*2 | A2*2 | M | Weight g | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. | MIN. | |||||||||||||||||
| ASP330F-01-06S | 6 | R 1/8 | M5 × 0.8 | 12 | 8 | 11.6 | 14.2 | 11.8 | 14 | 38.4 | 22.9 | 39.6 | 34.6 | 38.6 | 35.2 | 10.5 | 13.7 | 32 |
| ASP330F-01-08S | 8 | 15.2 | 15.8 | 44.7 | 28.2 | 38.9 | 33.9 | 18.7 | 35 | |||||||||
| ASP430F-02-06S | 6 | R 1/4 | 1/8 | 17 | 12 | 12.8 | 18.5 | 15 | 18 | 43.4 | 25.2 | 41.7 | 36.7 | 48.2 | 42.4 | 10.9 | 16.8 | 65 |
| ASP430F-02-08S | 8 | 15.2 | 19.7 | 46.4 | 28.2 | 18.7 | 68 | |||||||||||
| ASP530F-03-08S | 8 | R 3/8 | 1/8 | 19 | 12 | 15.2 | 23 | 19.8 | 20.3 | 51.3 | 28.2 | 46.9 | 41.9 | 55.1 | 50 | 14.4 | 18.7 | 107 |
| ASP530F-03-10S | 10 | 18.5 | 23.1 | 54.1 | 32.6 | 20.8 | 110 | |||||||||||
| ASP630F-04-10S | 10 | R 1/2 | 1/4 | 24 | 17 | 18.5 | 28.6 | 26.5 | 25.9 | 64.2 | 32.6 | 64.8 | 57.3 | 69.4 | 61.8 | 18.3 | 20.8 | 212 |
| ASP630F-04-12S | 12 | 20.9 | 66 | 34.4 | 21.8 | 215 | ||||||||||||
*1: Reference dimensions.
*2: Reference dimensions of R thread after installation.
Dimensional Drawing of This Product (Inch Size)

Speed Controller With Pilot Check Valve dimensional drawing (inch size)
(Units: inches)
| Model | d | T1 | T2 | H1 | H2 | D1 | D2 | D3 | L1 | L2 | L3 | L4*1 | L5 | A1*2 | A2*2 | M | Weight g | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. | MIN. | |||||||||||||||||
| ASP330F-N01-07S | 1/4 " | NPT 1/8 | 10-32UNF | 1/2 " | 8 | 13.2 | 14.2 | 11.8 | 15.8 | 42.2 | 25.6 | 38.9 | 33.9 | 38.6 | 35.1 | 10.5 | 17 | 35 |
| ASP330F-N01-09S | 5/16 " | 15.2 | 44.7 | 28.2 | 18.7 | |||||||||||||
| ASP430F-N02-07S | 1/4 " | NPT 1/4 | NPT 1/8 | 11/16 " | 1/2 " | 13.2 | 18.5 | 15 | 18 | 43.9 | 25.6 | 41.7 | 36.7 | 48.2 | 42.6 | 10.9 | 17 | 68 |
| ASP430F-N02-09S | 5/16 " | 15.2 | 46.4 | 28.2 | 18.7 | |||||||||||||
| ASP530F-N03-09S | 5/16 " | NPT 3/8 | NPT 1/8 | 19 | 1/2 " | 15.2 | 23 | 19.8 | 20.3 | 51.3 | 28.2 | 46.9 | 41.9 | 55.1 | 50.3 | 14.4 | 18.7 | 107 |
| ASP530F-N03-11S | 3/8 " | 18.5 | 23.1 | 54.1 | 32.6 | 20.8 | 116 | |||||||||||
| ASP630F-N04-11S | 3/8 " | NPT 1/2 | NPT 1/4 | 15/16 " | 11/16 " | 18.5 | 28.6 | 26.5 | 25.9 | 64.2 | 32.6 | 64.8 | 57.3 | 69.4 | 61.8 | 18.3 | 20.8 | 220 |
| ASP630F-N04-13S | 1/2 " | 21.7 | 26.5 | 66.3 | 34.7 | 21.8 | 230 | |||||||||||
*1: Reference dimensions.
*2: Reference dimensions of NPT thread after installation.
Needle Valve: Flow Rate Characteristics

ASP330F Needle Valve: Flow Rate Characteristics

ASP430F Needle Valve: Flow Rate Characteristics

ASP530F Needle Valve: Flow Rate Characteristics

ASP630F Needle Valve: Flow Rate Characteristics
*The flow rate characteristics are representative values.
Precautions
- *This product cannot be used for accurate and precise intermediate stopping of the actuator. Due to the compressibility of air as a fluid, the actuator will continue to move until it reaches a position of pressure balance, even though the pilot check valve closes with an intermediate stop signal.
- *This product cannot be used to hold a stop position for an extended period of time. Pilot check valves and actuators are not guaranteed for zero air leakage. Therefore, it is sometimes not possible to hold a stop position for an extended period of time. In the event that holding for an extended time is necessary, a mechanical means for holding should be devised.
- *Consider the release of residual pressure. Actuators may move suddenly due to residual pressure, which can be dangerous during maintenance procedures.
- *When used in a balance control circuit, there are instances in which the check valve cannot release, even if the pilot pressure is 50% of the operating pressure. In these cases, the pilot pressure should be the same as the operating pressure.
- *For reference, SMC has conducted endurance tests in which ON, OFF operation of the check valve was performed at the maximum operating pressure, with a confirmed endurance of 10 million operations. Sine the tests were performed under limited conditions, use caution in evaluating the results.
- *The check valve has a construction in which it is closed by the differential pressure generated when the inlet pressure (IN side) or outlet pressure (OUT side) solenoid valve is switched. Be aware that the check valve does not close completely and the outlet pressure (OUT side) may drop when the inlet pressure (IN side) drops gently and the differential pressure becomes smaller than the minimum operating pressure or cracking pressure.
- *When free flow is selected for the ASP, chattering may occur if it is operated under conditions where there is low differential pressure on either side of the ASP. Chattering may be reduced by increasing the diameter of the piping or selecting an ASP with a smaller body size; however, if this is not effective, we recommend using a perfect spacer in place of the ASP.
- *See the manufacturer's catalog for product information other than the above.