Standards provide greater assurance of product performance and consistency, and are available to assist design engineers in system specification. The most frequently referenced industry standards for plastic piping systems are ASTM Standard Specifications and Practices. Along with ASTM Standards, additional product specifications and certifications form the basis of product conformance to which Spears® products are manufactured.
ASTM D 2665Poly (Vinyl Chloride) (PVC) Plastic Drain, Waste, and Vent Pipe and Fittings.
ASTM D 3311Drain, Waste, and Vent (DWV) Plastic Fittings Patterns.
ASTM F 1866Poly (Vinyl Chloride) (PVC) Plastic Schedule 40 Drainage and DWV Fittings.Fabricated Fittings.
ASTM D 1784Rigid Poly (Vinyl Chloride) (PVC) Compounds and Chlorinated Poly Fittings.(Vinyl Chloride) (CPVC) Compounds.
NSF® International Standard 14 (NSF®-dwv) Certified NSF® International Certified to Uniform Plumbing Code (NSF®-U.P. Code). See official listing
Sewer Disconnect Application Requires Purchase of SDC-040 Body and SDCP-040 Plunger, Sold Separately.
Screw-down Plunger installs in Body to provide temporary shut-off of Sewer line or to minimize sewage backup from sewer mains during flooding. Body accepts SDR-35 Sewer Pipe (or any ASTM D 3034 /D 2729 pipe), but can easily adapt to Schedule 40 drainage pipe using 4" IPS socket x Sewer spigot adapters, Spears® part no. 3729-04013IXS.
Standpipe to grade can be easily fabricated from user-supplied SDR-35 Sewer Pipe or optionally from Schedule 40 drainage pipe with the addition of a 4" Schedule 40 DWV socket Coupling, Spears® part no. P100-040. For Closure, a 4" Sewer Cap, Spears® part no. 4047-040; or 4" Schedule 40 DWV Cap, Spears® part no. P116-040 can be used as applicable.
A T-handle extension for easy Plunger operation can also be fabricated from user supplied 1" Schedule 40 pipe and a Tee fitting, Spears® part no. 401‑010. See installation instructions included with product for additional detail.
Spears® Utility Backwater Valves feature an easily serviceable and replaceable Flapper Assembly
with extendable access using standard piping components. Designed for direct solvent cement connection to ASTM D 2665 DWV drainage pipe or any other IPS size pipe.
Spears® IPS x Sewer adapters easily convert valve to ASTM D 3034 SDR 35 Sewer Pipe. Utility Backwater Valves conform to the
requirements of ASME/ANSI and are designed
to prevent backflow in numerous applications where easy service access for
maintenance and cleaning is needed. Excellent for use in sanitary or storm sewer drainage systems to prevent waste back up due to inadequate drainage, for balancing
multi-level ponds, aquaculture features or storage tank systems, and many other applications. Spears® Utility Backwater Valve has
been engineered for easier installation with included Extension Kit Adapter components for use with User-Supplied Schedule 40 or Class 125 Extension Riser pipe cut to
desired length. Utility Backwater Valve package comes with 50 psi (115 feet of head) rated Extension Adapters. Optional Adapter Kits available in 100 psi (232 feet of head)
rating. Can also use User-supplied equivalent adapter components.
Replaceable internal flapper assembly.
Extension Kit Adapter components allow easy use with assembly user supplied pipe cut to desired length.
Direct Valve Connection to ASTM D 2665 PVC DWV or other IPS size pipe. Spears® IPS DWV x Sewer & Drain Adapter are available for connection to ASTM D 3034 & ASTM D 2729 Sewer pipe.
Utility Backwater Valve is Pressure Rated to 50psi (115 feet of head) or 100psi (232 feet of head) @ 73°F (23°C) with Appropriate Extension Adapter Selection.
Conforms to ASME/ANSI A112.14.1 for Backwater Valves.
Part Number
Size
Std Pk
Pllt Qty
Prod Code
Utility Backwater Valve w/Extension Adapters
Valve Package includes Body, Flapper Assembly and Extension Adapters (female thread & male thread plug) with 50 psi Extension Adapters Rating 100 psi Extension Adapter Available.
Requires User-Supplied 6" (for 4" valves) or 8" (for 6" valves) from Schedule 40 or Class 125 Riser Extension Pipe cut to desired length and 1" or 1-1/4" Internal Extension Pipe
Kit includes Female Threaded Cleanout Adapter and Male Threaded Plug for use with User-Supplied 6" (for 4" valves) or 8" (for 6" valves) from Schedule 40 or Class 125 Riser Extension Pipe
Note: 50 psi Kits have DWV Cleanout Plugs, 100 psi kits have Schedule 40 Threaded Plugs. User-supplied equivalent components can also be used.
Backwater Valves are designed to prevent backflow in numerous applications where easy service access for maintenance and cleaning is needed. Excellent for use in sanitary or storm sewer drainage systems to prevent waste back up due to inadequate drainage, for balancing multi-level ponds, aquaculture features or storage tank systems, and many other applications. Spears® Backwater Valve has been engineered for improved function and easier service, especially in buried service with use of optional Service-Access Extension available either preassembled with valve or as an add-on kit.
Replaceable internal flapper assembly with EPDM Seat.
Service-Access Extension available either preassembled with valve, as an add-on kit, or as valve & extension kit components with user supplied pipe.
Direct Connection to ASTM D 2665 PVC DWV or other IPS size pipe. Spears® fabricated IPS x Sewer Adapters or DWV x Sewer & Drain Adapter Bushings are available for connection to ASTM D 3034 & ASTM D 2729 Sewer pipe.
Pressure Rated to 43 psi (100 feet of head) @ 73°F (23°C).
All extension kits can be cut shorter for custom application.
Conforms to ASME/ANSI A112.14.1 for Backwater Valves.
Continued ( See next page)
Made in the U.S.A.
Suitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gas
See MSRP-1 Sheet or Check Spears® On-line Catalog @ www.spearsmfg.com for Pricing
¹ - Size designates nominal valve size x extension height (HT-top of valve to top of extension, inches)
PVC Service-Access Extension Kit Only to Premade Length
PVC Service-Access Extension Kit: includes factory assembled internal flap assembly, assembly extension pipe, and external extension housing with top access adapter. Requires solvent cement assembly to existing valve and uses existing threaded Access Plug. Standard Extensions are available in convenient increments of 12", 16", 20", 24", 36", and 48" (measured from top of valve to top of extension). Contact Spears® for pricing on custom cut lengths. All extension kits can be cut shorter in the field for custom fits prior to cementing access adapter in place.
Service-Access Extension Kit Only to Premade Length
Note 1: Riser and Handle pipe are not the same length. Sch 40 and/or Sch 80 pipe as well as ABS may be used. Special cement must be used to join PVC to ABS.
Note 2: When 6" SDR35 pipe is used, adapter fits pipe inside diameter.
Note 3: DO NOT use Sch 80 for 3" Riser pipe.
