610.01
H₂
Verified
Laboratory Valves LHP
Hand valves and air-operated valves for low-volume laboratory applications.
1,000–2,000 bar
SITEC-SieberSwitzerland
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High-Pressure Components
Valves, fittings, tubing, hoses, filters and instrumentation up to 10,000 bar.
35 products
High-Pressure ValvesFittings & ConnectorsTubing & PipingHoses & Flexible ConnectionsCheck ValvesRelief Valves & Safety HeadsFiltersInstrumentation & Accessories
710.00
H₂
Verified
Valves Based on ATEX
Ex-zone approved high-pressure valves for explosive atmospheres.
1,000–10,000 bar
SITEC-SieberSwitzerland
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710.01
H₂
Verified
Hand Valves, Metering Valves
Manually operated valves for precise flow control.
400–10,000 bar
SITEC-SieberSwitzerland
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710.02
H₂
Verified
Micrometering Valves
Extremely precise flow metering with micrometer adjustment.
1,000–7,000 bar
SITEC-SieberSwitzerland
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710.03
H₂
Verified
Piston Type Air-Operated Valves
Pneumatic piston valves for remote operation and automation.
1,000–7,000 bar
SITEC-SieberSwitzerland
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710.04
H₂
Verified
Diaphragm Type Air-Operated Valves
Tight, low-dead-volume diaphragm valves over a wide pressure range.
400–10,000 bar
SITEC-SieberSwitzerland
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710.05
H₂
Verified
High-Temperature Valves
Valves for hot process lines and reactors.
400–4,000 bar
SITEC-SieberSwitzerland
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710.06
H₂
Verified
Special Valves
Custom configurations for special media and applications.
max. 10,000 bar
SITEC-SieberSwitzerland
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710.08
H₂
Verified
Motor-Driven Valves
Valves with electric actuators for process automation.
1,000–7,000 bar
SITEC-SieberSwitzerland
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710.09
H₂
Verified
Air-Operated Control Valves
Pneumatic control valves for proportional flow control.
max. 4,000 bar
SITEC-SieberSwitzerland
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710.10
Verified
Test Bench Valves (max. 90 °C)
Low-pressure valves for test benches and calibration stations.
−0.8 … +40 bar
SITEC-SieberSwitzerland
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710.11
Verified
Test Bench Valves (−40…+120 °C)
Test bench valves for wide temperature ranges.
max. 500 bar
SITEC-SieberSwitzerland
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710.12
Verified
Test Bench Valves (Compact)
Compact design, wide temperature range, test applications.
max. 300 bar
SITEC-SieberSwitzerland
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620.01
H₂
Verified
Laboratory Fittings LHP
Laboratory fittings compatible with the LHP tubing system.
2,000 bar
SITEC-SieberSwitzerland
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720.00
H₂
Verified
HP Connectors
Metal-to-metal sealed connectors up to 10,000 bar.
1,000–10,000 bar
SITEC-SieberSwitzerland
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720.01
H₂
Verified
Standard Fittings
Standard HP fitting program including tees, crosses and couplings.
1,000–10,000 bar
SITEC-SieberSwitzerland
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720.02
H₂
Verified
Special Fittings, Reducers, Adapters
Reducers and adapters for transitions between systems and standards.
max. 7,000 bar
SITEC-SieberSwitzerland
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720.03
H₂
Verified
Swivel Joints
Free-rotating swivel joints for rotary tables and moving lines.
1,500–4,000 bar
SITEC-SieberSwitzerland
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720.04
H₂
Verified
Check Valves
Spring-loaded one-way check valves preventing backflow.
2,000–10,000 bar
SITEC-SieberSwitzerland
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720.05
H₂
Verified
Safety Heads / Rupture Discs
Safety heads and rupture disc systems for overpressure protection.
10–7,000 bar
SITEC-SieberSwitzerland
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720.05
H₂
Verified
Safety Relief Valves
Certified safety valves with adjustable set pressure.
50–4,400 bar
SITEC-SieberSwitzerland
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720.05
H₂
Verified
Relief Valves
Relief valves for system bleed-off and depressurization.
max. 4,000 bar
SITEC-SieberSwitzerland
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720.06
H₂
Verified
High-Pressure Filters
HP filter elements protecting valves and equipment from particles.
1,000–7,000 bar
SITEC-SieberSwitzerland
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730.01
H₂
Verified
High-Pressure Tubing
0.5–12 mm bores; AISI 316L / HP160 / HC276; 6 m supply length. Autofrettaged option for cyclic duty.
1,200–11,000 bar
SITEC-SieberSwitzerland
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730.02
H₂
Verified
High-Pressure Hoses
Flexible HP hose systems up to 3,200 bar (46,000 PSI).
max. 3,200 bar
SITEC-SieberSwitzerland
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740.01
H₂
Verified
Optical Cells and Window Units
Optical monitoring of liquids, gases and solids up to 7,000 bar; TÜV-approved (PED cat. I–II).
100–7,000 bar
SITEC-SieberSwitzerland
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740.02
H₂
Verified
Optical Cells for In-Line Monitoring
In-line cells integrated into the process line for continuous optical measurement.
100–1,000 bar
SITEC-SieberSwitzerland
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770.01
Verified
Coning & Threading Tools
Tool sets for preparing high-pressure tube ends.
SITEC-SieberSwitzerland
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770.02
Verified
Bending, Deburring, Reaming Tools
Bending, deburring and reaming tools for tubing installation.
SITEC-SieberSwitzerland
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770.03
H₂
Verified
Electrical Feed-Throughs
HP electrical feed-throughs carrying signals into pressure vessels.
1,000–7,000 bar
SITEC-SieberSwitzerland
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770.04
H₂
Verified
Temperature Measurement (up to 500 °C)
Temperature measurement up to 500 °C under high pressure.
2,000–7,000 bar
SITEC-SieberSwitzerland
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770.05
Verified
Temperature Indicators and Controllers
Indicators and controllers for process monitoring and control.
SITEC-SieberSwitzerland
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770.06
H₂
Verified
Pressure Transducers
High-precision HP pressure transducers up to 15,000 bar.
100–15,000 bar
SITEC-SieberSwitzerland
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770.06
H₂
Verified
Pressure Gauges
Analogue and digital pressure gauges up to 7,000 bar.
100–7,000 bar
SITEC-SieberSwitzerland
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770.07
Verified
Pressure and Combined P/T Indicators
Combined pressure/temperature indicators and recorders.
SITEC-SieberSwitzerland
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