Hydra-Cell C24ABBVSSNH Bypass Pressure Relief Valve — Brass Body with Viton Seals and Stainless Steel Internals for High-Flow Positive Displacement Pump Systems
The Hydra-Cell C24ABBVSSNH is a heavy-duty bypass pressure regulating valve built by Wanner Engineering for use with high-flow positive displacement pump systems, including the Hydra-Cell D35 and D66 pump models. With a brass body, Viton seals, and stainless steel internal components, this valve is engineered to handle demanding industrial fluid systems where chemical compatibility and long-term reliability matter. When system discharge is fully blocked — whether by a closed spray gun, a clogged nozzle, or a shut valve — the C24ABBVSSNH automatically diverts the full fluid flow to prevent dangerous pressure spikes and protect both the pump and the downstream system. The pressure setting is user-adjustable via a spring-loaded plunger mechanism, giving operators precise control over their system's operating pressure up to 1,000 PSI.
With a rated flow capacity of 40 GPM and 1-1/4 inch NPT port connections at the inlet, outlet, and bypass, this valve fits naturally into standard industrial plumbing layouts without adapters or custom fabrication. The AB inline configuration positions all three ports for straightforward installation, and the Viton diaphragm ensures compatibility with a wide range of process fluids including oils, fuels, mild acids, and other aggressive media. Whether you're running a high-volume pressure cleaning operation, a chemical processing line, or any system where flow balance across multiple discharge points is critical, the C24ABBVSSNH delivers consistent, repeatable pressure regulation cycle after cycle.
Key Features
- Brass body construction with Viton seals and stainless steel internal components
- AB inline 3-port configuration: inlet, outlet, and bypass in a compact inline layout
- Adjustable spring-loaded plunger lifts off seat when excess pressure overcomes set point, allowing fluid to bypass and reduce system pressure
- Rated for up to 40 GPM flow capacity at 1,000 PSI maximum pressure
- 1-1/4 inch NPT female threaded ports at inlet, outlet, and bypass
- Compatible with Hydra-Cell D35 and D66 pump models, as well as any comparable positive displacement pump
- Dual-function capability: operates as both a bypass pressure regulating valve and a pressure relief valve
- Balances pressure across multi-outlet systems to maintain even flow distribution
- Designed and manufactured by Wanner Engineering under the Hydra-Cell brand
Applications
- Industrial pressure cleaning and washdown systems
- Chemical transfer and metering with aggressive or petroleum-based fluids
- Multi-gun high-pressure spray systems requiring balanced flow
- Agricultural chemical injection and spraying equipment
- Industrial fluid processing systems with positive displacement pumps
- Car wash high-pressure pump systems requiring consistent pressure regulation
- Any positive displacement pump installation where overpressure protection is required
Specifications
- Part Number: C24ABBVSSNH
- Manufacturer: Wanner Engineering / Hydra-Cell
- Series: C24
- Body Material: Brass
- Seal / Diaphragm Material: Viton (FKM)
- Internal Components: Stainless Steel
- Configuration: AB Inline (3-port: inlet, outlet, bypass)
- Maximum Flow Rate: 40 GPM
- Maximum Operating Pressure: 1,000 PSI
- Port Size: 1-1/4 inch NPT Female (Inlet / Outlet / Bypass)
- Maximum Temperature: 200°F (93°C)
- Compatible Pump Models: Hydra-Cell D35, D66, and other positive displacement pumps
- Pressure Adjustment: Adjustable spring-loaded plunger mechanism
Frequently Asked Questions
Q: What is the difference between the C24ABBVSSNH and the C24ABBNSSNH?
The key difference is in the seal material. The C24ABBVSSNH uses Viton (FKM) seals, which offer better resistance to oils, fuels, and many chemical fluids. The C24ABBNSSNH uses Buna-N (NBR) seals, which are better suited to water-based applications and are typically a lower-cost option. Choose Viton when your process fluid is petroleum-based, a mild solvent, or chemically aggressive.
Q: Can this valve be used with pumps other than Hydra-Cell D35 and D66 models?
Yes. While the C24ABBVSSNH is the recommended valve for Hydra-Cell D35 and D66 pump models, it is designed to work with any positive displacement pump operating within its rated flow and pressure range of 40 GPM and 1,000 PSI. It is a versatile choice for protecting plunger pumps, diaphragm pumps, and gear pumps in a wide range of industrial systems.
Q: How do I adjust the pressure setting on the C24ABBVSSNH?
The valve uses a spring-loaded plunger mechanism that can be adjusted to set the desired bypass pressure point. When system pressure exceeds the set value, the plunger lifts off its seat and allows fluid to bypass. The exact adjustment procedure should follow Wanner Engineering's C24 Series installation and service documentation to ensure accurate and safe pressure calibration.
Q: Is it necessary to bypass a portion of flow continuously when using this valve as a pressure regulator?
Yes. When the valve is operating in pressure-regulating mode rather than as a pure relief valve, Wanner Engineering recommends that approximately 10% of the valve's rated flow be bypassed at all times. This continuous bypass prevents pressure spikes and helps reduce premature wear on the valve seat and plunger components.
Q: What happens to system pressure when the valve is fully bypassing flow?
When the system is fully bypassed — meaning all downstream discharge points are closed and the valve is diverting 100% of pump flow — system pressure will rise approximately 10% above the valve's set point. This is a normal characteristic of spring-loaded bypass valves and should be accounted for during system design to ensure all downstream components are rated for that potential pressure increase.
CLRMarine
