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Installation, Operation and Maintenance Manual -
Original Version
AVK Series 715, Pneumatic Actuated Gate Valve, DN 65-400
AVK 715 is a series of ductile iron, resilient seat gate valves operated by a pneumatic
actuator. They are designed for applications in clean water, waste water or sewage.
Face to face values are according to EN 558, series 3 (BS), 14 and 15.
Page 1 of 12
Copyright © AVK Holding A/S, original version, rev. 2, 30-Oct-2019
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Summary of Contents for AVK 715 Series
- Page 1 Original Version AVK Series 715, Pneumatic Actuated Gate Valve, DN 65-400 AVK 715 is a series of ductile iron, resilient seat gate valves operated by a pneumatic actuator. They are designed for applications in clean water, waste water or sewage.
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Page 2: Avk Series 715 Exploded View
AVK series 715 exploded view Page 2 of 12 Copyright © AVK Holding A/S, original version, rev. 2, 30-Oct-2019... -
Page 3: Avk Series 715 Parts List
Bolt, stuffing - gland flange Stainless steel Stud bolt, actuator - stuffing box Stainless steel Actuator rod Stainless steel Pneumatic actuator Festo DLP Copac Solenoid valve, 5/2 Festo VSNC-FC-M52-MD-G14-F8-1B2 Page 3 of 12 Copyright © AVK Holding A/S, original version, rev. 2, 30-Oct-2019... -
Page 4: Table Of Contents
9.3 Replace stuffing box shaft seal ..................8 9.4 Replace Festo actuator piston seal and O-rings............9 Decommissioning ........................ 9 Trouble shooting ....................... 10 Recommended spare parts ....................11 Page 4 of 12 Copyright © AVK Holding A/S, original version, rev. 2, 30-Oct-2019... -
Page 5: Principle Of Operation
AVK’s products are designed to be fit for purpose and to a high reliability standard. This provides a safe, low risk product when used correctly for the purpose for which it was designed. -
Page 6: Inspection And Storage
2 to ensure flanges are pulled in parallel to each other. Finally, tighten bolts to torque levels according to information from gasket manufacturer. Table 1, Bolt size Bolt size No. of bolts PN 10 PN 16 PN 10 PN 16 Fig. 2 Page 6 of 12 Copyright © AVK Holding A/S, original version, rev. 2, 30-Oct-2019... -
Page 7: Pneumatic Actuator Cylinder
Failure to do so may result in sudden pressure release and subsequent severe injury or death. In case the work includes the pneumatic actuator the air supply should be shut off and the actuator depressurized. Page 7 of 12 Copyright © AVK Holding A/S, original version, rev. 2, 30-Oct-2019... -
Page 8: Operation
9. Tighten the bonnet bolts to approx. 20 to 30 Nm following a diagonal sequence as shown for an 8 bolt example on fig. 5 10. Repeat step 9 with the torque wrench set to 50 Nm Page 8 of 12 Copyright © AVK Holding A/S, original version, rev. 2, 30-Oct-2019... -
Page 9: Replace Festo Actuator Piston Seal And O-Rings
When decommissioning the valve it should be disposed of according to local regulations and in a way that allows as much recycling of materials as possible. The valve contains no hazardous materials. Page 9 of 12 Copyright © AVK Holding A/S, original version, rev. 2, 30-Oct-2019... -
Page 10: Trouble Shooting
Cure: Adjust throttles on the solenoid valve outlet Symptom: Leak around bottom of actuator Cause: Stuffing box shaft seals worn or cracked Cure: Replace shaft seals Page 10 of 12 Copyright © AVK Holding A/S, original version, rev. 2, 30-Oct-2019... -
Page 11: Recommended Spare Parts
12. Recommended spare parts Only genuine AVK and Festo spare parts should be used. AVK accepts no responsibility for damage caused by failing non-AVK parts. Spare parts are normally not needed as the valve is designed to operate without maintenance for its entire lifetime. - Page 12 DN 250-300, ref.no. 715-300-15000 (DPS-320) Item Designation Rod seal 40x50x11.5 O-ring 12x2.5 O-ring 10x1 O-ring 250x4.5 O-ring 32x2.5 O-ring 37x2.5 Lipseal 320x295x19 Guideband 320 Grease Thread lock Page 12 of 12 Copyright © AVK Holding A/S, original version, rev. 2, 30-Oct-2019...
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