THM – Z-TVC Pre-fill Valve – Directional Valves
Dramatically accelerate the cycle times of your largest hydraulic cylinders with the THM Z-TVC Series Pre-fill Directional Valve. Engineered specifically to manage massive fluid transfers, this hydraulic pilot-operated check valve allows for the rapid filling and exhausting of large-volume cylinders during rapid advance and return strokes. Capable of processing an astonishing flow rate of up to 2500 liters per minute, the Z-TVC Series operates comfortably at continuous 250-bar pressures, with a maximum operating threshold of 300 bar. Manufactured from high-grade casting and featuring a robust sandwich plate design for secure flange connections, it is the ultimate heavy-duty solution for preventing hydraulic shock in massive industrial and civil machinery.
Core Technical Specifications:-
- Valve Architecture: Hydraulic Pilot Operated Pre-fill Check Valve
- Nominal Sizes: 50 to 150
- Maximum Operating Pressure: Up to 300 bar (250 bar continuous)
- Maximum Flow Rate: Up to 2500 L/min
- Mounting Configuration: Sandwich Plate Design (Flange Connections Only)
Key Features & Engineering Advantages:-
- Massive Fluid Processing: Purpose-built to instantly dump or draw up to 2500 liters of hydraulic fluid per minute. This drastically reduces the time required to advance or retract massive cylinders, highly optimizing the overall cycle time of your machinery.
- Optional De-Compression Feature: Available with or without an integrated de-compression mechanism. For high-pressure applications, the de-compression feature smoothly bleeds off built-up pressure before the main poppet opens, entirely eliminating violent hydraulic shock, loud hammering, and structural damage to your manifolds.
- High-Grade Cast Iron Construction: The heavy-duty valve body is poured from premium, high-grade casting to ensure it can safely absorb the immense physical stress and pressure surges associated with rapid, high-volume fluid shifts.
- Secure Flange Integration: Designed exclusively as a sandwich plate for flange connections, providing the absolute tightest, most leak-resistant mechanical seal possible for massive hydraulic lines.
- Dependable Pilot Operation: The hydraulic pilot perfectly synchronizes the opening of the pre-fill valve with the machine's primary directional controls, ensuring flawless, automated fluid flow exactly when the cylinder requires it.
Ideal Industry Applications:-
The immense flow capacity, heavy-duty casting, and de-compression capabilities of the Z-TVC Series make it an essential structural component for:
- Heavy Civil & Road Machinery: Enabling the rapid deployment and retraction of massive leveling cylinders, heavy compaction plates, and automated lifting mechanisms on large-scale road building equipment.
- Large-Scale Industrial Presses: Serving as the critical pre-fill and exhaust dump valve for heavy metal-forming presses, deep drawing presses, and massive plastic injection molding machines.
- Extreme Earthmoving Equipment: Managing the massive hydraulic fluid transfers required by the oversized boom and bucket cylinders on 50+ ton mining excavators.
- Heavy-Duty Material Handling: Providing rapid cylinder cycling for massive industrial lifting platforms, dock levelers, and heavy-tonnage balers.
