Tilting Check Valves
Tilting disc check valve is a development of the traditional type swing check valve that has been designed to allow for frequent flow reversals without causing wear in the shaft seat which is a common feature of the swing check. The compact body of the tilting disc saves space during installation hence reducing construction cost. The disc is pivoted in the upper one third of the valve body; hence the disc eccentricity is much smaller than that of the conventional swing check. Due to the shorter distance travelled by the disc the tilting check valve closes more rapidly hence resulting in less slam and water hammer Tilting disc check valves can be supplied with counter weights or springs to assist closure hence reducing shut-Off time. They can also be equipped with a double stage hydraulic damper (oil dashpot) for slow closure requirements.
Design Features
- Compact valve design for space-saving installation
- Flexible design for easy maintenance of counterweight and hydraulic damper
- Stable operation with balanced flow on both sides of the disc
- Double eccentric design for lower operating torque and longer seal life
- Counterweight and hydraulic damper options to minimize water hammer
- Corrosion-resistant body seat ring for extended service life
- Dual-side shaft extension for flexible mounting options
- Adjustable counterweight for application-specific performance.
Material Standards
Body, Disc, Gland and Bottom Cover ——— Ductile Iron EN-GJS-500/7 Or Ductile Iron EN-GJS-400/12 Acc. To (EN1563)
Body Seat ——— Stainless Steel Grade 309L
Retaining Ring ——— Stainless Steel Grade 316
Disc Seal ——— EPDM Rubber
Driving Shaft & Stub Shaft ——— X20Cr13 (AISI 420)
Valve Bearing ——— Self-Lubricating Bearing (PTFE/Steel/Tin)