In Liquefied Petroleum Gas (LPG) and anhydrous ammonia (NH3) systems, high flow rates, extreme pressure shifts, and vapor locking present continuous challenges. Managing fluid dynamics correctly relies heavily on precision-engineered valves. Corken® manufactures an extensive portfolio of specialized bypass and flow control valves to ensure terminal bulk plants, transport systems, and delivery bobtails run safely without interruption.

Valve Model Primary Classification Key Feature Target Application
B166 Priming & Differential Bypass Patented dual-purpose vapor elimination Coro-Flo® turbine pump systems
B177 Low Pressure Buildup Bypass Pressure sensing line provides an accurate and consistent set point Positive displacement pumps with limited HP
T166 Flow Control / Bypass Valve Modulates open gradually and silently Medium-capacity truck & stationary pumps
ZV200 Low Pressure Buildup Bypass Continuous internal bleed system Bobtail & transport loading/unloading

Understanding the Corken® Valve Lineup

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B166

For Vapor Elimination and Priming. Extreme summer heat or inlet piping restrictions easily flash liquid propane into gas, causing devastating vapor lock. Unlike basic relief valves that loop liquid directly back to the intake, the B166 is a patented, dual-purpose priming and differential valve. It continuously redirects trapped vapor straight to the storage tank's vapor space, ensuring
Coro-Flo® regenerative turbine pumps stay primed.

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B177

Low-Buildup Protection for Sensitive Power Systems. When operating high-capacity systems where motor horsepower is limited, over-pressurization strains the entire architecture. The B177 relies on an external pressure-sensing line tied directly back to the storage tank. This keeps pressure accumulation exceptionally low, providing smooth flow control and precise set points for large positive displacement pumps handling 40 to 350 GPM.

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T166

For medium-duty operations processing between 30 and 100 GPM, harsh valve slamming causes system-damaging water hammer and high pipe noise. The T166 acts as a moderate-to-high pressure buildup valve that modulates. It opens gradually and quietly as differential pressure increases, routing excess capacity seamlessly back to the supply tank while keeping vapors at bay with a built-in bleed orifice.

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ZV200

For heavy duty bobtail fleet support. High-flow loading arms on delivery vehicles require heavy-duty safety protection that coordinates with automatic emergency valves. The 2-inch ZV200 is a heavy-duty, low-pressure buildup bypass valve rated up to 250 GPM. It features a continuous internal bleed that maintains a small downstream pressure stream, assisting in the reliable actuation of air- or electrically-operated internal safety shutoff valves during fast bobtail and transport loading.

Whether you are managing a high-volume bulk terminal or operating a delivery bobtail, system integrity is something you can never afford to compromise. Using authentic, precision-engineered Corken® valves ensure that your system maintains optimal flow control, suppresses dangerous cavitation, and upholds the highest safety standards under extreme operational pressures. Cutting corners with generic alternatives introduces unneeded risk, accelerated wear, and the potential for catastrophic system failure. Investing in genuine Corken equipment means locking in proven reliability, field-serviceable durability, and the ultimate peace of mind that comes with industry leading safety protection.
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