Bell & Gossett V1001576 Suction Diffuser Plus - Manual (Page 9)

Product Description
General description
The Suction Diffuser Plus is an angle pattern flow straightening fitting that combines a
diffuser-strainer orifice cylinder and full length straightening vanes to provide ideal flow
conditions for the pump suction. It saves space and money by eliminating the need for
long or short radius elbows, reducing flanges, and long lengths of pipe leading into the
suction side of the pump.
The Suction Diffuser Plus is designed for direct application to the pump suction and
provides ideal flow conditions for the pump, providing NPSH requirements are met.
The main features are:
• The integrated Flow Cone directs flow through the unit and into the pump suction
while working with the full length straightening vanes to create a uniform flow profile.
• The orifice cylinder has a free area equal to five times the cross section of the pump
suction opening and serves as a course strainer to protect the pump from large
sediment.
• A disposable fine mesh bronze start-up strainer is provided in conjunction with the
orifice cylinder to help protect the pump and clean the system by capturing small
particles and other debris during system commissioning.
The operation chapter of this manual contains data showing pressure drop conditions
across the Suction Diffuser Plus both with and without the mesh start-up strainer in place.
In order to determine the presence of the start-up strainer in a non-intrusive manner,
gauge ports, or taps, are located in the inlet and outlet flanges of the Suction Diffuser
Plus.
Parts included in package
• Suction Diffuser Plus
• Instruction Manual
Additional parts needed:
• Flange gaskets
• Nuts and bolts
• Foot support
• Support leg
WARNING:
California Proposition 65 warning! This product contains chemicals known to the state of
California to cause cancer and birth defects or other reproductive harm.
NOTICE:
This product is not intended for potable water applications.
Declaration of Conformity
Xylem Inc. declares that the product listed conforms with the essential requirements and
provisions of Council Directive 97/23/EC, has been subject to internal manufacturing
checks with monitoring of the quality system, and conforms to following Sound
Engineering Practices (SEP) for use with Group 2 (non-hazardous) liquids. The suction
diffusers are not suitable for use with Group 1 (hazardous) liquids.
Product Description
Suction Diffuser Plus INSTRUCTION MANUAL 7