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コントロールユニット DeZurik APCO CVS-EDVのPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。DeZurik APCO CVS-EDV 18 ページ。 Swing check valves

DeZURIK

APCO CVS-EDV Swing Check Valves

Description

A swing check valve consists of a valve body, a cover, and a disc that is connected to a hinge. The disc

swings away from the valve-seat to allow flow in the forward direction, and returns to valve-seat when

upstream flow is stopped, to prevent backflow. The valve is equipped with either a lever & weight, an air

cushion with lever & weight, or a lever & spring to assist with closing the valve.

Lifting the valve improperly may damage it. Do not fasten lifting devices to the actuator or through the

seat opening in the body. Lift the valve with slings, chains or cables fastened around the valve body, or

fastened to bolts or rods through bolt holes in the flanges.

If installation will be delayed, place valve indoors in secure, weather tight storage. If temporary outside

storage is unavoidable, make sure a vermin proof rain cover (water shedding tarp, etc.) is secured

around/over the equipment to keep off rain and mud. Skid and set the assembly on a flat, solid, and

well drained surface for protection from ground moisture, runoff and pooled rain water.

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The APCO CVS-EDV Swing Check Valve may be installed in a horizontal or vertical position

(with the flow upward). In either case, the Counterweight Arm should be set in horizontal

position. Unless otherwise specified, the valves are shipped for horizontal installation.

See Figure 3 and 4 for component identification. On Lever and weight valves, to change

the counterweight arm position from horizontal to vertical installation, unscrew Lever Arm

to Shaft Set Screw (B57), remove Counterweight Lever Arm Washer (B56), loosen the

Lever Weight Assembly Set Screw (B55), slide the counterweight arm assembly off the

Shaft (A13), rotate the counterweight arm assembly and slide it back onto the Shaft

(A13) using the appropriate keyway shown in Figure 1.

D12042

Figure 1 – Counterweight Arm Position

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February 2016