GATE VALVES

Gate valves are designed to close off or open up the flow in a pipeline. The wedge is designed to completely stop flow and form a tight seal against pressure in either direction. In the open position, the wedge is completely out of the flow stream. Gate valves are not recommended for throttling use.

Recommended for general services such as water, steam, oil, air, petroleum and gas. May be mounted in the pipeline with the body or stem in any position with good results.

GLOBE VALVES

Globe valves are designed to close off, open up or throttle the flow in a pipeline. The disc is designed to completely stop flow and form a tight seal with pressure under the disc. In the 10% open position to full open position, globe valves are effective in throttling line pressure.


Globe valves satisfies the most sever services conditions been its performance against the destruction action implied in continuously opening and shutting them or making them work partially open, quite satisfactory.

NOTE: Continuous throttling at less than 10% open may cause excessive vibration, noise, wear and damage to discs and seats.

CHECK VALVES

Swing check valves are designed to open by the system pressure in a line. The desired direction of flow in the line will open the valve, and any attempt by the flow to reverse will close the valve completely. The check valve typically does not require any outside force or signal to operate properly. Check valves allow flow in one direction only. This type of valves allow operation with a minimum line pressure drop, and may be compare to gate valves. Due to its low resistance against flow they may be installed in liquid pipelines with low pressure and flow speed allowing a free trayect for the flow.