REPUBLIC OF THE PHILIPPINES EDICT OF GOVERNMENT In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to know and speak the laws that govern them. PNS/PAES 153 (2010) (English): Agricultural machinery - Hand Pump - Specifications PHILIPPINE NATIONAL PNS/PAES 153:2010 STANDARD (PAES published 2010) les 65.060.01 Agricultural machinery - Hand Pump - Specifications JUN 0 2010 J dtI BUREAU OF PRODUCT STANDARDS DEPARTMENT OF Member to the International Organization for Standardization (ISO) TRADE & INDUSTRY Standards and Conformance Portal: www.bps.dti.qov.ph PHILIPPINES PHILIPPINE NATIONAL STANDARD PNS/PAES 153:2010 (PAES published 2010) National Foreword This Philippine Agricultural Engineering Standards PAES 153:2010, Agricultural machinery - Hand Pump - Specifications was approved for adoption as Philippine National Standard by the Bureau of Product Standards upon the recommendation of the Agricultural Machinery Testing and Evaluation Center (AMTEC) and the Philippine Council for Agriculture, Forestry and Natural Resources Research and Development of the Department of Science and Technology (PCARRD-DOST). PHILIPPINE AGRICULTURAL ENGINEERING STANDARD PAES 153:2010 Agricultural Machinery - Hand Pump - Specifications Foreword The formulation of this national standard was initiated by the Agricultural Machinery Testing and Evaluation Center (AMTEC) under the project entitled "Development of Standards for Agricultural Production and Postharvest Machinery" funded by the Philippine Council for Agriculture, Forestry and Natural Resources Research and Development -Department of Science and Technology (PCARRD -DOST). This standard has been tcchnically prepared in accordance with BPS Directives Part 3:2003 - Rules for the Structure and Drafting of International Standards. The word "shall" is used to indicate mandatory requirements to conform to the standard. The word "should" is used to indicate that among several possibilities one IS recommended as particularly suitable without mentioning or excluding others. In the preparation of this standard, the following documents/publications were considered: Gray,W.B. and C.B. Ball. 1916. A working manual of American plumbing practice. American Technical Socicty. Keene, E.S. 1918. Mechanics of the household. Mcgraw-Hill Book Company, Inc. Nasir,A., S.O. Ubokwe and A. Isah. 2004. Development of a manually operated hand pump for rural water supply. AU IT. 7(4): 187-192. Regional Network for Agricultural Machinery. 1983. Test codes and procedures for farm machinery. Economic and Social Commission for Asia and the Pacific. United States Patent 669486281 http://www.ajayindustrial.col11/handp_force&lift.htm http://www.waterencyclopedia.com/Po-Rc/Pumps-TraditionaLhtml http://www.cee.vt.edu/ewr/environmentaJ/tcach/wtprimer/pumps/pumps.html http://www.steelforge.com/alloysteels.htm http://www.survivalunlimitcd.com/waterpul11ps/ohandpumps.htm http://www . cee. vt. edu/e wr/ envi ronmenta II tcach/wtprimer/pumps/pumps.html PHILIPPINE AGRICULTURAL ENGINEERING STANDARD PAES 153:2010 Agricultural Machinery - Hand Pump - Specifications 1 Scope This standard specifies the manufacturing and performance requirements for a hand pump. 2 References The following normative documents cont:lin provisions, which, through the reference in this text, constitute provisions of this National Standard: PAES 102: 2000 Agricultural Machinery - Operator's Manual - Content and Presentation PAES 154:2010 Agricultural Machinery - Hand Pump - Methods of Test 3 Definitions For the purpose of this standard, the following definitions shall apply: 3.1 check valve valve inside the cylinder that holds the column of water in the draw pipe while the plunger is being pushed do\vn after each up-stroke 3.2 discharge valve valve attached to the discharge side (for lift type hand pump) or to the body of the cylinder (for force type hand pump) to allow one direction of flow of water only 3.3 hand pump water pump powered by the movement of human arms 3.4 handle lever that connects the pump rod to the pump head which often includes some mechanism to add counterweight to balance the weight of the water being lifted up the draw pipe 2 3.5 outlet spout assembly of pump where water comes out 3.6 plunger piston part of the cylinder that is connected to the pump rod and which forces water up the draw pipe 3.7 pump head pump assembly attached to the stand which contains the handle outlet assembly 3.8 pump rod plunger rod steel rod that connects the pump handle to the plunger assembly within the cylinder 3.9 pump stand pedestal base that attaches the hand pump to the ground and connects to the draw pipe 3.10 stroke maximum distance that the plunger moves when the handle is moved 3.11 suction inlet inlet to which the suction pipe is connected 3.12 suction pipe pipe connecting the pump cylinder to the pump body where water moves up and out to the pump spout during pumping 4 Classification The hand pump shall be classi fled according to the following: 4.1.1 Lift type Type of hand pump intended Cor use in lirting water [ramlow-head cistenls and wells, the depth of which is not beyond the head furnished by atmospheric pressure (Fig. 1). 3 pump rod handle pump head plunger discharge valve suction inlct-- cylinder assembly check valve Figure 1. Lift type hand pump 4.1.2 Force type Type of hand pump that performs the work of a lift pump and in addition forces the water from the outlet at a pressure to suit any domestic application (Fig. 2). pump rod handle discharge plunger outlet pump head air chamber cylinder assembly discharge valve suction inlet check valve Figure 2. Force type hand pump 4.1.2.1 Single acting Type of force type hand pump that discharges water only on the fOlward stroke ofthe piston or plunger and draw in water into the cylinder during the back stroke. 4 4.1.2.2 Double acting Type of force type hand pump that discharges water on both forward and back strokes. 5 Principle of Operation 5.1 Lift type 5.1.1 Water shall be lifted by the action of the plunger. 5.1.2 By pressing the handle downwards, the valve shal1 be raised inside the cylinder. 5.1.3 The pressure inside the cylinder shall be reduced as the plunger assembly is raised. This shall allow water in the suction pipe to rise conespondingly. 5.1.4 After repeated strokes, water shall then reach the cylinder entering the check valve connected to the suction inlet. 5.1.5 The check valve shall open during downward strokc, and shall close during upward stroke. 5.1.6 The space betwecn the check valve and the plunger shall be filled with water. 5.1.7 Succeeding strokes of the cylinder shall then push the water between the plunger and the check valve into the discharge valve connected to the plunger. During the next upwctrd stroke, water shall be lifted to the spout. 5.2 Force type 5.2.1 Almost the same principle shall apply as that of the lift type. 5.2.2 As the cylinder is filled with water, the downward stroke of the plunger shall push the water through the discharge valve connected to the cylinder's body. 5.2.3 Water shall pass thro ugh the discharge outlet. Some of the water shall enter an air chamber which is also connected to the discharge outlet. 5.2.4 The water shall compress the air inside the chamber and shall create a pressure to force the water Oll t. 6 Manufacturing Rcq uiremcnts The hand pump shall consist of a pump head, handle, plunger, cylinder assembly, suction inlet and outlet. 6.1 The pump head and handle shall be made of cast iron or bettcr material. 5 6.2 The cylinder assemhly shall be made of cast iron or better material and shall have an inside diameter of at least 76 mm. 6.3 The check valve shall be made of cast iron or better material with a diameter of at least 32 mm. It shall have sicves to filter possible contaminants. 6.4 The plunger shall be made of cast iron or better material. It shall be surrounded with a gasket to keep it tight. 6.5 Gaskets shall be made of non-corrosive material (e.g. rubber). 6.6 Pump rods shall be made of cast iron or better material. 6.7 There shall be a provision for securing thc handle to the pump head (e.g. cotter pin or lock nut). 6.8 Lift type 6.8.1 The discharge valve in the plunger assembly shall be made of cast iron or better material. It shall have a diameter of at least 32 mm. 6.8.2 The discharge outlet shall be made of cast iron or better material. 6.9 Force type 6.9.1 The discharge valve connected to the cylinder shall be made of cast iron or better material. It shall have a diameter of at least 32 111m. 6.9.2 Air chamber shall be made of cast iron or better material with at least 6 mm thickness. It shall be (lir-tight and water-tight. 7 Performance Requirements 7.1 Check valves shall be water-tight. 7.2 Lift type hand pump shall lift the water from cistern or well to at least 6 m. 7.3 Force type hand pump shall lift the water up to a height of 15 m from ground level. 8 Safety, Workmanship and Finish 8.1 The hand pump shall have a rust-free finish. 8.2 The hand pump shall be free from sharp edges. 6