Flow control solutions for every industry
Flow control solutions for every industry
ESG supplies valve gearboxes in Egypt — bevel, dual bevel, worm and declutch-able gear operators for manual operation, and units supplied ready for electric actuator.
01 · Gearbox Types
Characteristic
Right-angle drive between handwheel and valve stem
Two-stage bevel arrangement for higher torque multiplication
Worm and wheel drive, commonly used on quarter-turn valves
Allows the drive to be disengaged for manual handwheel operation
Handwheel-operated gear unit
Supplied with the mounting interface for later motorisation
Gearboxes
02 · Why a Gearbox Is Needed
As valve size and pressure class rise, the torque needed to seat and unseat the closure member quickly exceeds what an operator can apply to a bare handwheel. The gearbox multiplies that input torque so a large valve can still be operated by hand.
03 · Manual Now, Motorised Later
Specifying gearboxes ready for electric actuator gives a project a path to automation without replacing valves. The gear unit already carries the correct mounting interface, so an actuator can be added in a later phase.
04 · Declutch-able Operation
A declutch-able gearbox lets the operator disengage the powered drive and take over with the handwheel — the practical safeguard when power is lost and a valve still has to be closed.
05 · Where Valve Gearboxes Are Used
Large butterfly valves in water and wastewater plants
Buried valve chambers operated from surface level via extension spindles
Power plant and industrial cooling water lines
Marine and mining installations
06 · Frequently asked questions
The questions consultants, contractors and plant engineers ask most often.
Bevel, dual bevel, worm and declutch-able gearboxes.
Yes — they can be supplied ready for electric actuator.
One where the powered drive can be disengaged so the valve can be operated manually by handwheel.
Continue
Continue through the section that matters to your project.
01
Electric actuators in Egypt from ESG: multi-turn, quarter-turn and linear valve actuators for water, oil & gas, power and industrial plant automation.
02
Expansion joints in Egypt from ESG: metallic and rubber joints, single and double bellow, in PN10, PN16 and PN25 for pumps, plant rooms and hot lines.
03
ESG flow control engineering solutions in Egypt: product selection support, complete valve and actuation packages and consultant-approved specifications.
04
ESG serves flow control industries across Egypt: water and wastewater, oil & gas, power generation, HVAC, irrigation and industrial applications.
05
Water and wastewater valves in Egypt from ESG: gate and butterfly valves, triple function air valves, control valves and expansion joints for treatment plants.
06
Oil and gas valves in Egypt from ESG: high performance butterfly valves, electric actuators and metallic expansion joints for oil, gas and petrochemical.
07
Power plant valves in Egypt from ESG: butterfly valves, gearboxes and metallic expansion joints for cooling water and balance-of-plant systems.
08
HVAC valves in Egypt from ESG: threaded and butterfly valves, strainers, check valves and rubber expansion joints for chilled water and plant room systems.
Quick enquiry
Send your enquiry to Sales@esg-Egypt.com.
Prefer email?
Next step
Send valve sizes and torque requirements to Sales@esg-Egypt.com for gearbox selection.
