Godrej & boyce mfg. Offers hydraulic door closer. It consists of a double regulating valve, which controls closing and latching speed. The latching speed can be adjusted depending on the force required to engage the lock within the frame. Some doors might have locks with latches, which would require greater force, and hence the right speed to engage itself with the frame. The dual mechanism thereby ensures that the door is shut smoothly and at optimum speed. It has a die casted aluminium alloy body machined to extreme accuracy and thereby improving its strength. The door closer can be mounted on door panel or door frame and is suitable for right hand and left hand opening doors. It is suitable for doors weighing upto 60 kgs and door openings upto 180 degrees. Suitable for doors having locks with latch bolts.