Norgren T68H-8AB-B2N 3/2 Valve - 1in PTF Port
Part Number: T68H-8AB-B2N
Quick Summary
Norgren T68H-8AB-B2N 3/2 valve provides reliable shut-off control for compressed air in automation and process lines. Engineers often struggle with valve leakage, slow response, and mis-sequencing in compact installations. This Olympian Plus model is designed to be easy to operate, with a lockable open or closed position and a 1/4 inch threaded exhaust to help manage backpressure. Although compact, the aluminum body and nitrile elastomer seals deliver durable performance in challenging environments. For compliance and safety, this design aligns with common industrial standards and can be integrated into safety circuits when paired with appropriate controls. The result is predictable performance, simplified installation, reduced maintenance, and improved uptime across production lines.
Product Information
Extended Description
T68H-8AB-B2N Norgren: 3/2 shut-off valve with 1/4" threaded exhaust | Easy to operate | Lockable in the open or closed position
Medium
Compressed air
Operating Temperature
-20 ... 80 °C, -4 ... 176 °F
Port Size
1" PTF
Actuation
T handle / T handle
Maximum Inlet Pressure
17 bar
Valve operation
3/2
Flow
451 dm3/sec, 956 scfm
Materials - Body
Aluminium
Materials - Elastomers
Nitrile rubber
Range
T68H
Series
Olympian Plus
Brand
IMI Norgren
Feature: Lockable T handle actuation improves safety and prevents accidental changes in valve state. Business Impact: Reduces unplanned downtime during setup and maintenance. Application: Ideal for packaging lines and automated assembly where stable configurations are critical. Feature: 1in PTF port with a 1/4 inch exhaust simplifies piping and venting. Business Impact: Shorter installation time and fewer potential leak paths, lowering commissioning costs. Application: Compact machine tooling and inline automation where space is at a premium. Feature: Aluminium body with nitrile rubber elastomers delivers corrosion resistance and reliable sealing. Business Impact: Longer lifecycle and lower maintenance in harsh environments, reducing total cost of ownership. Application: Food, beverage, and general industrial environments with exposure to humidity or splash zones. Feature: Wide operating temperature range of -20 to 80 C and a maximum inlet pressure of 17 bar. Business Impact: Versatile performance across multiple plants and seasons, supporting high-duty cycles. Application: Plants with temperature variation or high-pressure control circuits. Feature: Flow rated at 451 dm3/sec (956 scfm) enables robust actuation for downstream devices. Business Impact: Maintains consistent performance under higher demand, improving cycle times. Application: High-speed automation lines and tooling stations. Feature: T handle actuation provides intuitive manual control with immediate feedback. Business Impact: Quick training and reliable manual override during maintenance or fault recovery. Application: Any line requiring dependable manual intervention and lockable operation.
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FAQs
Begin by depressurizing the system and verifying all connectors match the 1in PTF port specification. Mount the valve in the intended orientation, connect the supply to the inlet port, attach the 1/4 inch exhaust line to the exhaust port, and secure the actuator in the desired state. Use the lockable feature to hold the valve open or closed during setup and maintenance to prevent accidental actuation and ensure a safe, repeatable configuration.
The valve supports a maximum inlet pressure of 17 bar and delivers a flow rate of 451 dm3/sec (956 scfm). With a 3/2 configuration, it provides reliable actuation for downstream devices. This makes it suitable for high-demand lines in automation that require quick response and consistent shut-off without introducing backpressure issues.
The valve offers a lockable open or closed position which enhances operator safety during setup and maintenance, reducing the risk of accidental actuation. For true SIL-rated safety loops, ensure integration with compatible safety controls and consider using the valve as a controlled element within a certified safety system rather than as the sole protective device.
Yes. The valve features an aluminium body with nitrile rubber elastomers and is rated for operating temperatures from -20 to 80 C. This combination provides good corrosion resistance and seal integrity, enabling reliable operation in varied industrial environments, including moderate washdown and dusty areas when used with appropriate enclosure protections.
You can access CAD files, the datasheet, and installation guide from the downloads section. Available assets include CAD formats, Datasheet PDF, and Installation Guide PDF, which support engineering drawings, installation planning, and compliance checks for the Norgren T68H-8AB-B2N.