QH HOUGHTOSAFE® 620 is a premium water glycol type fire resistant hydraulic fluid designed to provide maximum safety for use under pressure, near open flames or in high temperature areas.
QH HOUGHTOSAFE® 620 has been an industry leader since its introduction and continues to be the preeminent fluid in the water glycol market. QH HOUGHTOSAFE® 620 sets performance standards by which other water glycol fluids are measured. QH HOUGHTOSAFE® 620 is Factory Mutual approved as a less hazardous fluid.
Applications
QH HOUGHTOSAFE® 620 is designed to replace mineral oil based hydraulic fluid. It can be used in or near fire hazards applications without compromising the overall hydraulic system operation.
Properties
| PROPERTY | TYPICAL VALUE | UNIT |
|---|---|---|
| Appearance | Clear, red liquid | |
| Specific Gravity @15.5°C @60°F |
1.09 1.08 |
|
| pH | 9.5 | |
| Kinematic Viscosity At 40°C At 100°F |
39 200 |
cSt SUS |
| Kinematic Viscosity At 20°C At 68°F |
90 400 |
cSt SUS |
| Pour Point | -45 -49 |
°C °F |
Key Benefits
- Factory Mutual Approved as a fire resistant hydraulic fluid that protects personnel and property from accidental fire and may lower insurance premiums.
- Low pour point provides excellent stability in cold weather applications.
- High viscosity index allows the fluid to be used at a wide temperature range.
- HOUGHTO-SAFE® 620 Series is recognized worldwide and is available globally.
- Provides excellent lubrication characteristics which extends pump and component life.
- Recognized as one of the premium water glycols by Original Equipment Manufacturers.
