Xylem rule LoPro 4708856181, Инструкция по эксплуатации

Страница: 6 / 8

6
Best practice: Use two stainless
steel hose clamps to attach hose to
hose barb.
During the winterization of a vessel, it’s recommended that you remove the check valve (if equipped) and drain any residual
water from the plumbing.
Plumbing:
This bilge pump has been designed to be used with ŷ exible hose. Rigid piping or tubing may damage the pump or the pump’s
discharge.
* actors that reduce the ŷ ow of a bilge pump may include but are not limited to the following:
• The length of discharge piping (longer runs reduce ŷ ow)
• The number or radius of bends
• The roughness of the interior surfaces of piping and Ŷ ttings (smooth bore hose is best)
• The reduction (hose restriction) in cross-sectional area of discharge system components such as check valves and
thru-hulls
Attach the discharge hose to the hose barb using stainless steel hose clamps.
The thru-hull discharge
Ŷ tting should be mounted at least 8 ŕ (2 .3 cm) above the heeled water line to prevent water
siphoning in from outside the vessel or the discharge may be located below the maximum heeled waterline if the
discharge line is provided with both of the following:
•
A seacock installed in accordance with the requirements of ABYC H-27, Seacocks, Thru-Hull Connections, and
Drain Plugs, and
• A vented loop or other means to prevent siphoning into the boat. A check valve shall not be used for this purpose.
- f the discharges of several pumps are manifolded to discharge through a single thru-hull Ŷ tting, the system shall be
designed so that the operation of one pump will not back feed another pump, and the simultaneous operation of each
pump will not diminish the pumping capacity of the system. A check valve shall not be used in the discharge manifold
system.
A check valve may be used only when necessary to prevent an automatic bilge pump from cycling on and off due to back
ŷ ow from the discharge line.
Hose connections shall be secured with a non-corrosive type of clamp, or be mechanically fastened with permanently
attached end Ŷ ttings, such as swaged sleeve. Threaded inserts shall be attached with corrosion resistant metallic clamps.
Please note that the check valve should NOT be used
with the elbow
Ŷ tting. The check valve and elbow
combination greatly restrict the ŷ ow.