DeZurik APCO CVS-EDV Gebruiksaanwijzing - Pagina 8

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APCO CVS-EDV Swing Check Valves

14. If the valve is equipped with an Pneumatic Cylinder (B68):

a. Install the Cushion Lever (B88) onto the Shaft (A13).

b. Install the Pneumatic Cylinder assembly (B68) and Cylinder Bracket (B66) onto the

Body (A1) using Cylinder Bracket Mounting Bolts (B69).

c. Slide Cushion Lever (B88) into Y-Connector (B63). Install the Cushion Lever Clevis Pin

(B61) into the Y-Connector (B63) eye. Secure with Cushion Lever Clevis Pin Retaining

Ring (B62). Tighten AC Assy Set Screw (B76).

15. Install counterweight assembly by sliding Counterweight Lever Arm Fabrication (B54) onto Shaft

(A13) and tightening Lever Weight Assy Set Screw (B55), or install spring lever assembly by

sliding Lever Arm Fabrication (B33 or B85) onto the Shaft (A13) and tightening Spring Lever

Arm Ret. Screw 3-14" (B31) or Spring Lever Arm Ret. Screw 16-30" (B87). On sizes 3-14",

install Spring Bracket (B32) to Body (A1). On sizes 16-30", install Spring Cylinder (B83) to Body

(A1). Secure using Spring Bracket Screws (B38) or Spring Cylinder Mount Bolts (B84). On size

3-14", hook ends of Spring (B34) thru Eye Bolt (B35) and Lever Arm Fabrication 3-14" (B33).

16. Position Counterweight Lever Arm Washer (B56) at end of Shaft (A13). Insert Lever Arm to

Shaft Set Screw (B57) and tighten.

Adding Air Cushion Assembly to Valve

Servicing the valve while the pipeline is under pressure can cause personal injury or

equipment damage. Relieve pipeline pressure before servicing the valve.

1. Relieve the pressure in the pipeline and close the valve.

2. Unscrew Lever Arm to Shaft Set Screw (B57). Remove Counterweight Lever Arm Washer

(B56). Loosen the Lever Weight Assy Set Screw (B55) and remove the counterweight

assembly.

3. Install the Cushion Lever (B88) onto the Shaft (A13).

4. Install the Pneumatic Cylinder assembly (B68) and Cylinder Bracket (B66) onto the Body (A1)

using Cylinder Bracket Mounting Bolts (B69).

5. Slide Cushion Lever (B88) into Y-Connector (B63). Install the Cushion Lever Clevis Pin (B61)

into the Y-Connector (B63) eye. Secure with Cushion Lever Clevis Pin Retaining Ring (B62).

Tighten AC Assy Set Screw (B76).

6. Install counterweight assembly by sliding Counterweight Lever Arm Fabrication (B54) onto Shaft

(A13) and tightening Lever Weight Assy Set Screw (B55).

D12042

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February 2016