Type 21

A. HEX Drive

a)Will not disengage during operation

b)Protects the elastomer bellows from damage

B. THE design of single coil spring helps preventing clogging

C. Advantage

a)Greatly simplifies installation

b)No adhesive on seal face

c)Prevents penetration of solids into the seal head

d)Cushions rotary seal face without metal to seal face contact

Pressure：p1 = 10 bar (150 PSI)

Temperature：t = -40 °C(-40°F) … +200 °C (+400°F)

Sliding velocity：vg = 15 m/s (49 ft/s)

• Dependent on medium, size and material

Water, oil, amorphous organic solvents such as acid, alkali and salt, etc.

Pool pumps,Spa pumps,smaller industrial and commercial applications.