RTQH - Scotch yoke hydraulic actuator

DESCRIPTION

RTQH is a range of high torque hydraulic quarter turn actuators with materials selected to withstand the most hostile environmental conditions. They are suitable for all onshore and offshore applications, covering the majority of on-off and modulating valves.
RTQH Series is designed to provide maximum reliability and flexibility to cover a wide range of valves in all pressure classes.

PLUS

    • Chromium plated guide bar to absorb transversel forces
    • Designed to provide high torque with minimum space and weight
    • Double acting or spring return compact design
    • Electroless nickel plated cylinder to minimise friction and prevent corrosion
    • Full stainless steel version available
    • Housing is manufactured in carbon steel material without any cast/grey/ductile iron or aluminum parts
    • Integral or declutchable manual hand-wheel available
    • Scotch yoke mechanism available in both canted or symmetrical executions
    • Totally sealed weatherproof housing that provides complete protection for all moving parts
    • Zero Backlash mechanism for modulating valve available

TECHNICAL DATA

Operating pressure

Hydraulic version up to 350 barg

(special version available on request)

Standard operating temperature

-30°C to 100°C

(lower or higher temperature on request)

Output torque

From 2.000 Nm up to 600.000 Nm

(for double acting version)

Spring Ending Torque

From 1.650 Nm up to 165.000 Nm

(for single acting version)

Certifications/approvals

PED 2014/68/EU

ATEX 2014/34/EU 

EAC TR TS 012/2011 

MACHINERY DIRECTIVE 2006/42/EC 

IP66/67M according to IEC/EN 60529 

SIL3 certified (IEC 61508) as a “single device”

Designed and tested in accordance with EN 15714-4

Further certifications are available, please contact us for updated list.