Hydraulic systems

Design, project work and delivery of hydraulic units executed according to your specifications for all fields of application including installation, starting and maintenance

HYDRO-DRIVE ASSEMBLIES
TYPE HA-160-6,0-6,0-190/2,2-2,2-400V/Ex

Application:
Hydraulic actuation of respectively two control valves (medium: gas) per hydro-drive assembly
Execution with quick-opening (with the help of a spring) in 0.1 sec.)
Arrangement of design regarding intermittent operation and continuous adjustment (stroke time about 0.3 sec.)
Execution of the complete hydro-drive assembly in explosion-protection

HYDRO-DRIVE ASSEMBLY
TYPE HA-160-3,0-3,0-190/1,1-1,1-400V

Application:
Hydraulic actuation of one reducing valve with a nozzleinjection control valve and a check valve
Execution with quick-opening (hydraulically)
Arrangement of design regarding intermittent operation and step-by-step-adjustment

HYDRO-DRIVE ASSEMBLIES
TYPE HA-63-1,5-190/0,55-400V and HA-63-3,0-190/1,1-400V

Application:
Hydraulic actuation of respectively one control valves per hydro-drive assembly
Arrangement of design regarding intermittent operation and continuous adjustment with quick-opening (hydraulically)

Example of a hydraulic unit, installed in a power plant:
HYDRO-DRIVE ASSEMBLY with HYDRAULIC CYLINDERS

in the power plant Dieselstraße in Halle (Germany)
TYPE HA-160-4,5-4,5-190/1,5-1,5-400V

Application:
Hydraulic actuation of two reducing valves with respectively one injection control valve
Execution with quick-closing (with a help of a spring)
Arrangement of design regarding intermittent operation and continous adjustment

Execution of the cylinders:

single acting with damping in full home position
with ultrasonic position measuring system

OPERATIONAL CONTROL BLOCK
for the hydraulic actuation of control valves in power plants

Arrangement of design as two-fold servo control for intermittent operation as well as for serperate hydraulic supply of main and safety phase winding

Abundant motor double pump units

Hydraulic units TRD421

HYDRO-DRIVE ASSEMBLY
TYPE HA-160-4,5-4,5-190/1,5-,1,5-400V

Application:
Hydraulic actuation of one control valve
Execution with quick-closing (witk the help of the a spring) according to SR-safety regulations (TRD 421; AD-Merkblatt 2)
Arrangement of design regarding intermittent operation and step-by-step-adjustment
Execution of the cylinders:

single acting
with ultrasonic position measuring system

Execution of the steam testing unit:

with lockable check valves
without electric test arrangement
with mechanical pressure switches

HYDRO-DRIVE ASSEMBLY

TYPE HA-400-3,0-3,0-190/1,1-,1,1-400V
Application:
Hydraulic actuation of respectively two reducing valves per hydro-drive assembly with respectively one injection control valve
Execution with quick-closing (with the help of a spring) according to SR-safety regulations (TRD 421; AD-Merkblatt 2) and additional quick-opening (hydraulically)
Arrangement of design regarding intermittent operation and step-by-step-adjustment

STEAM TESTING UNITS
Execution:

with lockable check valves
without electric test arrangement
with mechanical pressure switches

Some examples by executed hydro-drive assemblies:

TYPE HA-400-21,0-21,0-195/7,5-7,5-400V and HA-400-28,5-28,5-195/11,0-11,0-400V

Application:
Hydraulic actuation of respectively two reducing valves per hydro-drive assembly with respectively one injection control valve
Execution with quick-closing (with the help of a spring) according to SR-safety regulations (TRD 421; AD-Merkblatt 2) and additional quick-opening (hydraulically)

Arrangement of design regarding intermittent operation and continuous adjustment

pertinent STEAM TESTING UNITS
Execution:

with lockable check valves
with electric test arrangement
with mechanical pressure switches
all components are installed in a cabinet

HYDRO-DRIVE ASSEMBLIES
TYPE HA-630-16,5-16,5-16,5-16,5-200/7,5-7,5-7,5-7,5-400V

Application:
Hydraulic actuation of respectively three reducing valves per hydro-drive assenbly with respectively one injection control valve and one check valve
Execution with quick-closing (with the help of a spring) according to SR-safety regulations (TRD 421; AD-Merkblatt 2) and additional quick-opening (hydraulically)
Arrangement of design regarding intermittent operation and continuous adjustment

Execution of the oil tank with a deviding wall (double-tank) with respectively two motorpump units and a high pressure double filter per tank-half.

SAFETY BLOCK NG 16 to NG 40

Control of safety valves to SR-safety regulations
(TRD 421 or AD-Merkblatt 2)

Cartridge valves alternatively with lift stop or with switch position surveillance

STEAM TESTING UNIT

Execution:

with lockable check valves
with or without electric test arrangement
alternatively with electric or mechanical pressure switches
alternatively with separate frame-stand for floor installation or with frame for wall - installation

Example:
Steam testing unit with mechanical pressure switches, without electric test arrangement and with separate frame-stand for floor installation

HYDRO-DRIVE ASSEMBLY with STEAM TESTING UNIT and HYDRAULIC CYLINDERS in the power plant Wiesengrund in Eisenach (Germany)
TYPE HA-250-3,0-3,0-190/1,1-1,1-400V

Application:
Hydraulic actuation of one reducing valve with a nozzle injection control valve and a check valve

Execution with quick-closing (with the help of a spring) according to SR-safety regulations (TRD 421; AD-Merkblatt 2) and additional quick-opening (hydraulically)

Arrangement of design regarding intermittent operation and step-by-step-adjustment

Execution of the cylinders:

single acting with damping in full home position