Hankison 1701-1 Bypass Valve

The Hankison 1701-1 Bypass Valve is a specialized non-bleed type component engineered for integrated system serviceability in compressed air and liquid applications. As a veteran-grade air dryer bypass valve, this unit eliminates the footprint and labor costs typically associated with multi-valve bypass manifolds. Designed for high-reliability environments, it is compatible with models 8010 and HPR5-10 and can be utilized with any secondary moisture separator or filter. The 1701-1 is constructed with materials resistant to common industrial fluids, featuring a brass body with Buna-N seals and nylon internals. Unlike bleed-style variants, this non-bleed bypass valve maintains pressure within the isolated component during service, preventing system depressurization. It supports a maximum working pressure of 200 psig and operating temperatures up to 120°F. The 3/8” NPT and tube connections utilize reusable rubber ferrules for a secure, leak-free fit, making it a standard choice for contractors managing SPX Flow Hankison equipment.

• Streamlined Installation: Single integral unit design removes the need for brazing separate fittings and valves in sequence.
• Maintenance Accessibility: Allows for complete service of dryers or filters without interrupting downstream airflow.
• Versatile Compatibility: Suitable for use with gases and liquids compatible with brass and Buna-N components.
• Rotatable Fittings: Metal-to-plastic design permits 360-degree rotation of fittings to simplify alignment in tight cabinets.
• High Pressure Rating: Robust construction supports standard industrial 200 psig pneumatic systems.

Does the system need to be depressurized to engage the bypass?
No, the 1701-1 is designed to switch to bypass mode while the system is under pressure, though the isolated component (dryer/filter) will remain pressurized in this specific non-bleed model.

Can this be used on brands other than Hankison?
Yes, while it is the OEM part for specific Hankison models, the 3/8” connections and universal bypass logic make it compatible with various refrigerated dryers and filtration units.

What is the difference between this and the 1701-2 model?
The 1701-1 is a non-bleed type, meaning the bypassed component stays under pressure. The 1701-2 is a bleed-type that automatically depressurizes the bypassed unit through a dedicated bleed hole.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.