ASTM F1150-22

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F1150 − 16 F1150 − 22 An American National Standard
Standard Specification for
Commercial Food Waste Pulper and Waterpress Assembly
This standard is issued under the fixed designation F1150; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification covers commercial pulping and waterpress assemblies intended for grinding of food scraps, paper,
cardboard, and disposable plastic food-service ware.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.3 The following safety hazards caveat pertains only to the test method portion, Section 13, of this specification: This standard
does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this
standard to establish appropriate safety safety, health, and healthenvironmental practices and determine the applicability of
regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
A6/A6M Specification for General Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling
A29/A29M Specification for General Requirements for Steel Bars, Carbon and Alloy, Hot-Wrought
A53/A53M Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
A126 Specification for Gray Iron Castings for Valves, Flanges, and Pipe Fittings
A240/A240M Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and
for General Applications
A269 Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service
A276 Specification for Stainless Steel Bars and Shapes
A436 Specification for Austenitic Gray Iron Castings
A505 Specification for Steel, Sheet and Strip, Alloy, Hot-Rolled and Cold-Rolled, General Requirements for
A513 Specification for Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing
A519 Specification for Seamless Carbon and Alloy Steel Mechanical Tubing
A532/A532M Specification for Abrasion-Resistant Cast Irons
A554 Specification for Welded Stainless Steel Mechanical Tubing
A582/A582M Specification for Free-Machining Stainless Steel Bars
This specification is under the jurisdiction of ASTM Committee F26 on Food Service Equipment and is the direct responsibility of Subcommittee F26.01 on Cleaning
and Sanitation Equipment.
Current edition approved Dec. 1, 2016April 1, 2022. Published January 2017April 2022. Originally approved in 1988. Last previous edition approved in 20112016 as
F1150 – 11.F1150 – 16. DOI: 10.1520/F1150-16.10.1520/F1150-22.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1150 − 22
A681 Specification for Tool Steels Alloy
B43 Specification for Seamless Red Brass Pipe, Standard Sizes
B75 Specification for Seamless Copper Tube (Metric) B0075_B0075M
D2000 Classification System for Rubber Products in Automotive Applications
D2287 Classification System and Basis for Specification for Nonrigid Vinyl Chloride Polymer and Copolymer Molding and
Extrusion Compounds
D3915 Specification for Rigid Poly(Vinyl Chloride) (PVC) and Chlorinated Poly(Vinyl Chloride) (CPVC) Compounds for
Plastic Pipe and Fittings Used in Pressure Applications (Withdrawn 2015)
D3951 Practice for Commercial Packaging
E674 Specification for Industrial Perforated Plate and Screens (Round Opening Series)
F104 Classification System for Nonmetallic Gasket Materials
F437 Specification for Threaded Chlorinated Poly(Vinyl Chloride) (CPVC) Plastic Pipe Fittings, Schedule 80
F439 Specification for Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Pipe Fittings, Schedule 80
F441/F441M Specification for Chlorinated Poly(Vinyl Chloride) (CPVC) Plastic Pipe, Schedules 40 and 80
F442/F442M Specification for Chlorinated Poly(Vinyl Chloride) (CPVC) Plastic Pipe (SDR–PR)
F443F760 Specification for Bell-End Chlorinated Poly(Vinyl Chloride) (Cpvc) Pipe Schedule 40Food Service Equipment
Manuals (Withdrawn 1986)
2.2 National Fire Protection Agency Standard:
NFPA 70 National Electric Code
2.3 NSF International Standards:
NSF/ANSI 13 Refuse Processors and Processing Systems
NSF Listings–Food Equipment
2.4 Underwriters Laboratory Standards:
UL 430 Waste Disposers
UL 508 Electrical Industrial Control Equipment
3. Terminology
3.1 General—Commercial pulpers with waterpresses are intended for grinding food waste, food service paper and cardboard
products, food service plastic products, documents including computer printouts, general office and retail store paper, and
cardboard waste. Materials are ground in a water-filled tank (pulper) to produce a slurry which is then passed to the waterpress
to be de-watered. Pulpers are not intended to be used for grinding glass, china, metal, wood, clam, or oyster shells. Any small
pieces of metal inadvertently placed in the pulper, such as cardboard box staples, aluminum refreshment cans, or tin food cans,
shall be removable from a trap in the pulper tank.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 pulper—the pulper tank has a motor driven grinding disk to grind and cut waste material, and mixes this material with water
to produce a slurry that is pumped to the waterpress through a sizing screen. Pulpers may consist of the following principle parts:
tank, motor, grinding disk, particle sizing ring, trash box, legs, feed chute, stationary, and rotating cutters.
3.3 waterpress—the waterpress de-waters the slurry generated in the pulper by use of a vertical, inclined, or horizontal screw and
perforated screen, then discharges the pulp down a chute to a waste container. Water removed during this process is pumped to
the pulper tank in order to conserve fresh water use. Waterpresses may consist of the following parts: shell, helical transport screw,
perforated screen, gearbox, motor, compression cone, discharge housing, chute, and pump.
4. Classification
4.1 General—Pulper and waterpress assemblies shall be of the following type, size, and options as specified.
4.2 Type, Size, and Options (See Table 1):
4.2.1 Type A—Free-standing pulper and waterpress assembly with tray assembly and flanged feet.
The last approved version of this historical standard is referenced on www.astm.org.
Available from National Fire Protection Association (NFPA), 1 Batterymarch Park, Quincy, MA 02269-9101.
Available from NSF International, P.O. Box 130140, 789 N. Dixboro Rd., Ann Arbor, MI 48113-0140.
Available from Underwriters Laboratories (UL), 333 Pfingsten Rd., Northbrook, IL 60062.
F1150 − 22
TABLE 1 Type, Size, and Options
Type Pulper with Waterpress A B
Size Pulper Diameter
24 30 24 30
Options Inches—Maximum
Pulper Motor HP 5 7.5 5 7.5
Waterpress Motor HP 2 3 2 3
1 Automatic Shutdown Timer 3 3 3 3
2 18 In. Higher than Standard
Waterpress 3 3 3 3
3 Tray Flush (Recirculated
Water) 3 3 3 3
4 Trough Flush (Recirculated) 2 2 3 3
5 Single Feed Through
Connection 2 2 3 3
6 Double Feed Through
Connection 2 2 3 3
7 Feed Hood with Tray 4 4 3 3
(1) Pulper cover plate supplied in lieu of feed hood.
(2) Pulper and waterpress type not compatible with optional feature.
(3) Indicates available option for given type pulper with waterpress.
(4) Standard for Type A.
4.2.2 Type B—Undercounter pulper for 34-in. (86-cm) high counter and waterpress with feed hood and bullet feet.
4.3 All equipment of the same model designation and options on the same purchase order shall have component interchangeability
for serviceability.
5. Ordering Information
5.1 Purchasers should select the preferred options permitted in this specification and include the following information in
procurement documents:
5.1.1 Title, number, and date of this standard.
5.1.2 Classification of size and type (see Section 4).
5.1.3 Electrical power supply voltage range (see 9.1).
5.1.4 Electrical controls when specified to be remote from the unit (see 9.3).
5.1.5 Optional automatic shutdown timer when specified (see Section 4).
5.1.6 Spare and maintenance parts required.
5.1.7 Optional tray flush uses recycled water from the waterpress when specified (see Section 4).
5.1.8 Optional waterpress for high profile pulp discharge 18 in. above standard height optional when specified (see Section 4).
5.1.9 Optional trough flush when specified (see Section 4).
5.1.10 Optional single feed trough connections on when specified (see Section 4).
5.1.11 Optional double feed trough connections when specified (see Section 4).
5.1.12 Optional feed hood with tray for Type B (see Section 4).
5.1.13 Designate special features required for installation, such as location of controls, location of feed-hood and trough openings,
waterpress discharge location, and location for cold water and drain connections.
F1150 − 22
6. Materials
6.1 Unless otherwise specified, pulpers and waterpresses shall be fabricated of materials specified in documents referenced in
Section 2. Materials used shall be free from defects which would adversely affect the performance or maintainability of individual
components or the overall assembly. Unit shall be manufactured for cleanability.
6.1.1 Corrosion-Resistant Steel—Shall conform to the requirements of any 300 series steel specified in Specifications
A240/A240M, A554, A276, and A582/A582M.
6.1.2 Corrosion-Resisting Material—Corrosion-resisting material is other than corrosion resistant steel that is equivalent in the
pulper and waterpress application.
6.1.3 Abrasion-Resistant Cast Iron—Shall conform to the requirements specified in Specification A532/A532M.
6.1.4 Austenitic Gray Iron—Shall conform to the requirements specified in Specification A436.
6.1.5 Copper Tube—Shall conform to the requirements specified in Specification B75.
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