Unlike conventional gate valves, parallel slide gate valves boast parallel seating surfaces, ensuring uniform force distribution and minimal wear. This innovative design enhances sealing performance, rendering them perfect for applications requiring precise shut-offs and efficient fluid flow control.

Parallel gate valves incorporate a closure member with parallel faces, resembling a sliding gate. This member can either be a single disc or a twin-disc assembly.

ACEV's bolted bonnet parallel gate valves excel in clean service and steam applications. Their design leverages the primary system pressure acting on the downstream disc to maintain seat integrity, eliminating the need for wedging action or additional seat loading. Thanks to their inherent design, parallel slide valves are immune to thermal binding issues, providing a significant safety advantage in high-temperature environments.

One notable advantage of parallel gate valves is their minimal flow resistance, approaching that of a short, straight pipe in full-bore configurations. Their ability to slide the disc across the seat face also allows them to handle fluids containing suspended solids with ease.

Parallel gate valves offer diverse configurations tailored to meet the specific needs of various industrial applications:

Bolted bonnet parallel gate valves are prevalent in steam generation industries operating at low to medium pressures. Their design features a bonnet securely bolted to the valve body, facilitating easy disassembly and access to internal components for maintenance. This ensures the longevity and reliability of the valve by allowing for the convenient replacement of worn-out parts and routine inspections.

Pressure seal parallel gate valves are specifically engineered for high-pressure applications. They incorporate a pressure seal bonnet that provides a secure and leak-proof seal, even under extreme pressure conditions. These valves are widely used in industries such as power generation and oil and gas refining, where maintaining system integrity is critical.

Welded bonnet parallel gate valves are renowned for their exceptional strength and durability. The bonnet is directly welded to the valve body, creating a robust and leak-resistant seal. These valves are often preferred for heavy-duty applications requiring reliable performance and resistance to harsh operating conditions. They are typically available in smaller sizes.