Norgren P64F-NNA-NNN Dump Valve - 3/2, Air Pilot
Part Number: P64F-NNA-NNN
Quick Summary
The Norgren P64F-NNA-NNN dump valve provides controlled startup pressure for pneumatic systems in automation. This helps engineers avoid surge loads that can cause wear, downtime, and noncompliance during machine start. It supports CE compliance under the European Machineries Directive and PUWER requirements, helping safer startup and risk reduction. Engineered as part of the Olympian Plus family, this model features a zinc alloy body, nitrile elastomer seals, and robust 3/2 valve operation for repeatable actuation. The integration with standard air supply lines simplifies installation, while its 71 mm height and 143 mm length fit compact layouts. Taken together, these attributes deliver improved uptime, reduced energy waste, and safer, certifiable pneumatic startup sequences across manufacturing environments.
Product Information
Extended Description
P64F-NNA-NNN Norgren: Assists machine designers in complying with the European Machineries Directive | Can help existing machinery to comply with PUWER (Provision and Use of Work Equipment Regulations) | Controlled increase of downstream pressure on start up | High forward flow capacity | High flow dump facility
Medium
Compressed air
Operating Temperature
-20 ... 80 °C, -4 ... 176 °F
Operating Pressure
3 ... 10 bar, 43 ... 145 psi
Port Size
Without Yoke
Actuation
Air pilot / Spring return
Valve operation
3/2
Flow
57 dm3/sec, 121 scfm
Materials - Body
Zinc alloy
Materials - Elastomers
Nitrile rubber
Dimensions - Height
71 mm
Dimensions - Length
143 mm
Dimensions - Width
75 mm
Weight
2 kg
Country of Origin
Czechia
Range
P64F
Series
Olympian Plus
Brand
IMI Norgren
Y64A-4GA-N1N
Yoke assemblies
Y64A-4GA-N2N
Yoke assemblies
Y64A-4GA-N3N
Yoke assemblies
74504-50
Wall Bracket
MB004B
Quietaire heavy duty silencer male, R1/2
T40B1800
Quietaire sintered bronze silencer, R1/8
Feature: 3/2 valve operation with controlled downstream pressure increase. Business Impact: Smooth startup sequences reduce mechanical stress and extend machine life. Application: Packaging lines, conveyor systems, and automation cells benefit from predictable actuation. Feature: Air pilot with spring return for fail-safe shutdown. Business Impact: Enhanced safety and reliability during power-down, preventing accidental actuation. Application: Robotic workstations and process lines requiring safe halt. Feature: High flow capacity 57 dm3/sec (121 scfm). Business Impact: Maintains steady downstream pressure at startup, enabling faster line ramp-ups. Application: High-speed manufacturing where startup immediacy is critical. Feature: Durable zinc alloy body with nitrile elastomer seals. Business Impact: Robust performance in industrial environments, improved long-term sealing and resistance to oil/grease. Application: Heavy-duty pneumatic installations with frequent cycling. Feature: Operating range -20 to 80 °C and 3 to 10 bar. Business Impact: Wide environmental compatibility reduces SKU proliferation and spares inventory. Application: Automotive, packaging, and machine tools across varied climates. Feature: Without Yoke port compatibility and Y64A accessory options. Business Impact: Flexible mounting and easy retrofit with existing yoke assemblies. Application: Replacing older dump valves or upgrading control panels with minimal downtime.
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FAQs
Installations without a yoke are supported by using compatible mounting hardware and the dedicated wall bracket (74504-50) where applicable. Ensure the valve's port size is listed as Without Yoke, connect standard compressed air lines, and verify the Y64A series yoke assemblies remain available for future upgrades. Always follow the system’s lockout/tagout procedures and consult the installation guide for torque and sealing specifics.
Key specs include 3/2 valve operation, operating pressure from 3 to 10 bar (43–145 psi), flow capacity of 57 dm3/sec (121 scfm), operating temperature range -20 to 80 °C (-4 to 176 °F), and a zinc alloy body with nitrile elastomer seals. Dimensions are 71 mm height, 143 mm length, and 75 mm width, with a weight of 2 kg. These figures determine suitability for your machine’s start-up profile and enclosure footprint.
Yes. The 3/2 valve operation supports straightforward start/stop control of double-acting actuators commonly used in packaging lines. Its high flow capacity and controlled pressure ramp limit surge loads, improving cycle reliability and reducing wear on downstream actuators. The air-pilot, spring-return actuation provides a safe default state, which is valuable in unattended production zones.
The valve is designed to support CE compliance under the European Machineries Directive and PUWER-related safety objectives by enabling controlled startup and pressure management. However, achieving full regulatory compliance depends on the complete machine design and system integration. Users should document the valve’s role in the safety chain, perform risk assessments, and validate overall compliance within their specific machine installation.
Regular maintenance should focus on seals and connection integrity. The nitrile elastomer seals are compatible with clean compressed air and typical lubricants, but compatibility with aggressive chemicals should be verified. Inspect for signs of wear, verify mounting integrity, and replace seals as part of preventive maintenance to preserve flow characteristics and response times across cycles in high-demand environments.