INTRODUCING THE
HYD691...
The HYD691 is a low-flow hydraulic pressure regulator. Specifically targetting
mineral oil applications, it has been designed as a compact and economical
alternative to our LF690, yet still incorporates all of its key features
including a ceramic seat. In comparison, the LF690 offers more extensive Cv
options and caters for the harsh services encountered on water-based hydraulic
applications such as water glycol.
Its ceramic ball has a ‘glass-like’ finish to provide a positive shut-off and
is also fully supported to ensure fixed travel in the ‘Y’ axis. The HYD691 is
self-relieving with a segregated captured vent as standard.
PLEASE CONTACT THE PRESSURE TECH OFFICE IF YOUR ORDER HAS ANY SPECIAL
MODIFICATIONS OR REQUIREMENTS.
APPLICATIONS:
• Hydraulic oil subsea systems
• Subsea valve actuator control
• Valve test rigs
• Liquid sampling
• Hydraulic power packs
FEATURES:
• Ceramic seating design
• Segregated captured vent
• Compact design
• Main valve cartridge design
Max. Rated Inlet Pressure
Outlet Ranges
Design Proof Pressure
Seat Leakage
Weight
690 bar (10,000 psi)
Up to 690 bar (10,000 psi)
150% max. working pressure
In accordance with ANSI/FCI 70-3
2.6kg (5.7lbs)
