H Series GreatSeal® is a single-acting seal consisting of a U-shaped jacket and a helical wound corrosion resistant spring. The helical ribbon spring of H Series GreatSeal® has a high spring loading, which gives excellent sealing integrity at low pressure and even in vacuum. H Series GreatSeal® is suitable for static applications and ideal in low speed applications.

Single acting rotary seal for axis of rotation. Widely applied to varies hydraulic systems. Besides, it is widely used in chemical pharmaceutical and food industries due to its excellent compatibility of the seal ring and the spring.

• can stand rapid temperature change
• for reciprocated and rotary sealing
• adapt to most fluids and chemicals
• can stand rapid temperature change
• low friction, wear resistance, stable dimension
• no stick-slip behavior even under excurate control
• excellent anti-corrosion performance and dimension stability
• will not pollute foods, medicines and medical fluids
• can carry out disinfection
• unlimited storage life