1 Scope
1.1 General
1.1.1 This standard covers wastewater diverter/bypass valves and diversion systems ranging from size
50 DN (NPS‐2) to 300 DN (NPS‐12) and specifies requirements for materials, physical
characteristics, performance testing, and markings.
1.1.2 Wastewater diverter/bypass valves covered by this Standard can be used in alternate nonpotable
water source systems (applicable only to downstream of the trap and upstream of
sanitary waste or storm water systems) for control, capture, and treatment for onsite reuse or
release in residential, commercial, and industrial, indoor, and outdoor applications.
1.1.3 This standard covers valves specifically designed to divert and control non‐potable water and to
address the special need for alternative valves ranging from 50 DN (NPS‐2) to 300 DN (NPS‐12)
for use of rainwater, stormwater, greywater with alternate water source systems, which cannot
be practically met by existing valve designs compliant with ASME A112.18.2/CSA B125.2. The
valves covered by this standard are either specially designed to fit the application and for use in
alternate water source systems or are existing designs conforming to this Standard to fit the
application such as gate, globe, angle, and butterfly valves. The latter options are traditionally
accepted for use in pressurized systems and municipal stormwater management and do not
meet the existing requirements applied to fittings and valves used in sanitary drainage
applications. In particular, that waterways should be smooth and free of obstruction and should
not restrict the flow or produce excessive turbulence.
