steve
Got hold of Sime for a Carrier card for…
Got hold of Sime for a Carrier card for a chiller. Machine down in a factory. Received the new card in express time machine and plant now up and running fantastic service form Sime
2 months ago
159501
Festo 159501 available at EU Automation. Get in touch today for a quick price.
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What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
Festo 159501 is an LRP-1/4-4 precision pressure regulator designed to maintain a stable output pressure in pneumatic systems. This pilot-operated diaphragm regulator features secondary venting, a lockable rotary adjustment knob, and a pressure adjustment range of 0.05 to 4 bar. It operates with an inlet pressure of 1 to 12 bar and provides a nominal flow rate of 2,000 l/min with pressure hysteresis of up to 0.02 bar.
The regulator has G1/4 pneumatic connections and is prepared for a G1/8 pressure gauge connection. Its aluminum housing and NBR seals are suitable for use with non-lubricated compressed air or inert gases at media and ambient temperatures from -10°C to 60°C. The 310 g unit supports front-panel, in-line, or accessory-based mounting and can be installed in any orientation.
The regulator has G1/4 pneumatic connections and is prepared for a G1/8 pressure gauge connection. Its aluminum housing and NBR seals are suitable for use with non-lubricated compressed air or inert gases at media and ambient temperatures from -10°C to 60°C. The 310 g unit supports front-panel, in-line, or accessory-based mounting and can be installed in any orientation.
| Specification | Description |
|---|---|
| Manufacturer | Festo |
| Part Number | 159501 |
| Model | LRP-1/4-4 |
| Product Type | Precision pressure regulator |
| Design | Pilot-operated precision diaphragm regulator |
| Regulator Function | Maintains constant outlet pressure with secondary venting |
| Operating Pressure | 1 to 12 bar (0.1 to 1.2 MPa) |
| Pressure Regulation Range | 0.05 to 4 bar |
| Inlet Pressure | 1 to 12 bar |
| Maximum Pressure Hysteresis | 0.02 bar |
| Nominal Standard Flow Rate | 2,000 l/min, standardized according to DIN 1343 |
| Operating Medium | Compressed air compliant with ISO 8573-1:2010 [7:4:4], or inert gases |
| Lubricated Operation | Not permitted |
| Pressure Indicator Connection | Prepared for G1/8 |
| Pneumatic Connection 1 | G1/4 |
| Pneumatic Connection 2 | G1/4 |
| Mounting Position | Any orientation |
| Mounting Methods | Front-panel mounting, in-line mounting, or mounting with accessories |
| Adjustment Control | Lockable rotary knob |
| Media Temperature | -10°C to 60°C |
| Ambient Temperature | -10°C to 60°C |
| Housing Material | Aluminum |
| Seal Material | NBR |
| Product Weight | 310 g |
| Material Compliance | RoHS compliant |
| PWIS Compliance | VDMA 24364-B1/B2-L |
What type of component is this?
The Festo 159501 is an LRP-1/4-4 precision pressure regulator designed to maintain a constant outlet pressure in compressed-air and inert-gas systems.
What is the adjustable pressure range?
The outlet pressure can be adjusted from 0.05 to 4 bar, making the regulator suitable for pneumatic applications requiring accurate low-pressure control.
What operating pressure can the regulator accept?
The specified operating and inlet pressure range is 1 to 12 bar, equivalent to 0.1 to 1.2 MPa.
How does the regulator maintain stable pressure?
It uses a pilot-operated precision diaphragm design to keep the outlet pressure constant. Its maximum pressure hysteresis is 0.02 bar.
Does the regulator include secondary exhaust?
Yes. The regulator has a secondary exhaust function, which allows excess downstream pressure to be vented when the set pressure is reduced.
What is the nominal flow rate?
The standard nominal flow rate is 2,000 liters per minute, normalized according to DIN 1343.
Which pneumatic connections are provided?
Both primary pneumatic connections use G1/4 threads. The unit is also prepared for a pressure indicator with a G1/8 connection.
Which operating media are suitable?
The regulator is intended for compressed air meeting ISO 8573-1:2010 class [7:4:4] and for inert gases.
Can lubricated compressed air be used?
No. The Festo 159501 is specified for non-lubricated operation, so lubricated compressed air should not be used.
What temperatures can the regulator operate in?
Both the permitted ambient temperature and medium temperature range from -10°C to 60°C, or approximately 14°F to 140°F.
How can the regulator be installed?
It can be installed in any mounting orientation. Available installation methods include front-panel mounting, in-line pipe mounting, and mounting with compatible accessories.
How is the selected pressure setting secured?
The regulator has a rotary adjustment knob with a locking mechanism, helping prevent unintended changes to the selected outlet pressure.
What materials are used in its construction?
The housing is made from aluminum, while the seals are made from NBR. The component is also RoHS compliant.
How much does the regulator weigh?
The specified product weight is 310 grams, or approximately 0.68 pounds.
Is the regulator suitable for PWIS-sensitive applications?
The regulator is listed as compliant with VDMA 24364 classes B1/B2-L for paint-wetting impairment substances.
- Precision regulation of compressed-air pressure in industrial pneumatic systems
- Maintaining stable outlet pressure for sensitive pneumatic instruments and components
- Controlling air pressure supplied to actuators, cylinders, and control valves
- Providing consistent pressure for automated assembly and production equipment
- Regulating inert gases in compatible industrial processes
- Reducing pressure fluctuations in testing, measurement, and calibration equipment
- Supporting panel-mounted and in-line pneumatic installations
- Managing low-pressure applications requiring adjustment from 0.05 to 4 bar
- Providing secondary venting where downstream pressure relief is required
- Supplying steady air pressure in packaging, handling, and process-control machinery
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
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Customer reviews
steve
Daniel
Excellent customer service...
Alex Bailey is my main point of contact at EU Automation...he is extremely friendly, has exceptional customer service skills and always offers great pricing & lead times.
4 months ago
Jerry Schrink
Tom Higgins provided amazing service
Tom Higgins provided great prompt service. I contacted Tom by phone and within 10 minutes there was a quote in my in box. WOW Thank you Tom and Thank you EU Automation!
4 months ago
Paulo Pereira
Excellent service and communication…
Excellent service and communication from Alex Bailey. He truly goes above and beyond to ensure his clients are 100% satisfied. The entire process was seamless, and his attention to detail made a huge difference. Highly recommended for anyone looking for amazing service!
4 months ago
Gary
Tom Higgins did a great job at getting…
Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
4 months ago
Lessle Smith
Thomas Higgins has gone above and…
Thomas Higgins has gone above and beyond to make things happen for my facility. His customer service and knowledge were an asset in helping me with my order and the logistics challenges!
5 months ago
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