VALVES
Hartmann Valves has manufactured valves to the highest quality and safety standards for over 75 years.
HARTMANN VALVES
Designed to individual customer requirements, Hartmann ball valves guarantee the highest levels of safety and availability – even under extreme operating conditions. As a reliable shut-off valve, they resist aggressive media, extreme pressures and temperatures or frequent actuating operations. The metal-to-metal sealing between ball and seat rings with high quality hardfacing provides an especially long service life and minimises maintenance requirements.
The ball valves are equipped with hand lever or gearbox for manual operation. Automatic operation by means of electric, pneumatic or hydraulic actuators. Configuration variants e.g. rapid close, fail-safe-open, fail-safe close and high cycle with ≥200,000 actuations per year. We develop tailor made solutions for special process requirements.
WHY BALL VALVE INSTEAD OF GATE VALVE
HIGHER OPERATIONAL SAFETY
-
Gas-tight for large dimensions at low and high pressure
-
No tendency to lock or jam
-
Multiple sealing barriers
MINIMAL MAINTENANCE
-
Light function check maintenance only
-
No grease injection nor shaft seal replacement
HIGHER PLANT AVAILABILITY
-
No contamination from grease
-
No downtime due to maintenance or failure
REDUCED COSTS
-
Higher plant productivity
-
Lower maintenance costs for planning, service and spare parts
ENVIRONMENTALLY FRIENDLY
-
Sealing fulfils threshold values for fugitive emissions acc. ISO 15848
-
No grease or sealant necessary
DESIGN
-
2-piece housing
-
Type AST with trunnion mounted ball ≥ 2 1/16”
-
Type ASF with floating ball for 10,000psi ≤ 2 1/16”
-
Metallic sealing system with tungsten carbide hard-faced coating
-
Triple shaft seals (type AST)
-
Fugitive emission acc. ISO 15848-1 up to +200°C
-
Anti-blowout shaft /anti-static design
-
Conforms DIN/ISO standard gear mounting
-
Position indicator for open position on all ball valves ≥4 1/16”
-
Drain port NPT or ISO incl. bleeder plug
-
DIB-2 design* (type AST)
*Double Isolation and Bleed 2 (DIB-2) design: has upstream seat equipped with a standard seat ring to ensure pressure relief of valve cavity in the direction of the well. The downstream seat ring is equipped with split seat ring to provide a “Double Piston effect” and seals in both directions. –› Double barrier against well pressure.
CLASSIFICATION API 6A
-
Material class EE-NL
-
Also, AA, BB, DD; EE-NL (H2S no limit), EE-1.5
-
Quality class PSL3 or PSL3G
-
Performance level PR1 (PR2 on request)
-
Temperature class L/X
-
L/X also includes N, P, S, T, U and V
-
All wetted parts acc. API 6A ductility
-
All wetted parts with hardness values acc. ISO 15156 (NACE)
COLOUR SYSTEM
-
Light protection primer C2 in acc. DIN ISO 12944-5, RAL 1013 (HV 2)
-
Medium protection C3 in acc. DIN ISO 12944-5, RAL 5012 (HV 3)
-
High protection C5-M in acc. DIN ISO 12944-5, RAL 5012 (HV 4)
-
High temperature resistant aluminium (HV 6)
TECHNICAL CHARACTERISTICS
STANDARD SUPPLY RANGE
OUR DELIVERY TIMES ARE APPROX. 12 WEEKS. SHORTER DELIVERY UPON REQUEST.