National plumbing code of the philippines free download

Attachment - vertical piping shall be secured at sufficiently close intervals to keep the pipes in alignment and to carry its weight and contents. S meters length, may be supported at not more than J meters intervals. Supps shall be adequate to maintain alignment and to prevent sagging and shall be placed within 0. Hubless or compression gasket joints must be supported at least at every other joint except that when the developed length between supports exceeds 1.

Suspended lines shall be suitably braced to prevent l. I Materials - for hangers and anchors shall be of sufficient strength to maintain their proportional share with the weight of the pipe and its content. Tunnels shall have a clear height of 0. When pi pe is driven, the drive pi. Adequate precaution shall be taken to ensure proper compactness of backfill around pipes without damage to such pipe Trenches shall be back-filled in thin layers of0.

Mechanical devices or equipment such as bulldozer, grader, etc. The filling shall be properly compacted Suitable precautions shall be taken to ensure permanent stability for pipes la. Except as permitted elsewhere in this Code. All porcelain enamel swfaces on plumbi. Water doset bowls fur public use shall be the elongated bowl types equipped with open-front seats. Restaurant kitchen and other special-use sinks may be made of approved-type bonderized and galvanized sheet steel of not less than Gauge No.

The overflow pipe from a fixture shall be connected to the house or inlet side of the fixture trap. Water Closet or Urinal flush tanks shall discharge into the bowls or wares served by them, but it shall be unlawful to connect such overflows with any other part of the drainage system. Jerway area. Each such tailpiece, continuoos waste or waste and overflow shall not be less than 38 mm O. No dishwasher drain shall be connected to a sink tailpiece, continuous waste or trap on the discharge side of a food waste disposal unit.

Any water closet, which might pennit siphonage of the contents of the bowl back into the water tank, shall be prohibited as well as trough urinals. Drinking fount ains shall not he installed inside public toilet rooms. No sheet metal lined wooden bathtubs shall be installed or reconnected. No dry or chemical closet toilet shall be installed in a. Open navigation menu. Close suggestions Search Search. User Settings. Skip carousel. Carousel Previous.

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History of Plumbing Practice The birth of the plumbing profession in the Philippines is traced back to the 17th century. Every application shall: The seal shall be round in shape and shall be inscribed with the following: Section "'A" VE- a valve that automatically closes to prevent the flow of liquid or gas in a reverse direction Section "'P" Rooms adjacent and open to the space where the appliance is installed, through openings not furnished with doors, are..

Section R :; Reverse trap 1. It is mechanically satisfactory lower in price. Hence, it is widely used and entirely where price is the main consideration. It has a large amount of standing water to prevent fouling. It is mechanically efficient but expensive. SIPHON VORTEX- this type of bowl develops its flushing through the water entering through diagonal holes around which creates a swirling action which forms a vortex in the considered to be the most quiet, most efficient and most water closet.

The design and the bowl plus its large water area and quietness in it desirable than siphon wash down. It is sanitary the water closet appearance of operation, make 1. One-piece 2. Close Coupled 3. Pail Flush 4.

Squat bowl 1. Usually used in tandem with the bidet. It is a two-piece model. With the publication of the Edition of the Uniform Plumbing Code , another significant milestone was reached.

For the first time in the history of the United States, a plumbing code was developed through a true consensus process. The edition represents the most current approaches in the plumbing field and is the fourth edition developed under the ANSI consensus process. Parkcontrol Pro Activation Code Free. Automatically controlled flushometer valves maybe substituted for automatic flush tanks. Floor drains, flocr receptors and shower drains shall be of an approved type, the body provided with integraUyhcast water-stop outside flange around the body at mid dtpth and with an inside caulk outlet to provide a watertight joint in the floor.

No shower receptors shall be installed unless it conforms to acceptable standards as required by Chapter 14 of this Code or until a specification or a prototype or both of such receptor is first submitted to the Administrative Authority for approval. Thresholds shaH be of sufficient width to accommodate a minimum nun wide door. Plumbing Fixtures Eneption: Special shower compartments for wheelchair use may eliminate the curb or threshold.

The required slope and depth shall bt maintained from the door entry to the drain opening. The minimum distance between the door or entry to the drain opening shalt be 1. The minimum area and dimensions shall be maintained from a point above the shower drain outlet to a height of l. Each receptor shall be adequately reinforced, provided with an approved flanged floor drain designed to make a watertight joint in the floor, and shall have smooth, impetvious and durable.

All lining materials shall be pitched at a slope of2 percent or 20 mrnlm to weep holes in the subdrain of a smooth and solidly formed sub-base. All lining materials shall extend upward on the rough jambs of the shower opening to a point no less than 76 mrn above the top of the finished dam or threshold and shall extend outward over the top of the rough threshold and be turned over and fastened on the outside face of both the rough threshold and the jambs.

No metallic shower sub-pans or linings may be built-up on the jobsite of not less than three 3 layers of standard grade 6. The bottom layer shall be fitted to the formed sub-base and each succeeding layer thoroughly hot mopped to that below.

AH comers shall be carefully fitted, strengthened and wnt,.! An approved type sutrdrain shall be installed with every shower sub-pan or lining. Each such sub-drain sb. The sub-drain shall have weep holes into the waste line. All shower-lining materials conform to approved standards acceptable to the Administrative Auth01ity. Gutters in public or gang shower rooms shall have rounded comers for easy cleaning and shaH be sloped not less than two 2 percent toward the drains.

Drains in gutters shall be spaced not more than 4. Multiple or gang showers may be controlled by a master thermostatic mixing valve in lieu of individually controlJed pressure balance or thermostatic mixing valves.

Thickness of copper pans or liners shall be at ieast Gauge No. Joints in copper pans or liners shall be soldered or brazed. Revised National Plumbing Code of the Philippir.

Maie Fcmale 14 -Maic Ft. Tj I Wmkshops. Jdditionnl 3: 20 1- 1 1 3: ! Over , add l! I s l per 75 pCl ::Klll! I be n5idered separately by the Administrative Authority. Drinking Jount. Laundry truys. Kitchen sinks. As rt. Wllere there is exposure to skin contamination v. Slop sinks, one I for each persons. In upplying thi. For example, schools should be provided v. The mmhr or n1. The31t:rs, audttonwus. The Pennittee shall be assessed an appropriate fee appearance. The Administrative Authority requires the opening or removal of any plug or clean-out, etc.

After the plumbing fixtures have been set and their traps filled with water, they shall be submitted again for a final test. If applied to t! If the system is tested in sections, each opening shalt b'! In testing successive sections at least the upper 3 meters height of the preceding section previously tested shall be tested again so that no joint or pipe in the building except the uppermost 3 meter of the system shall have been submitted to a test of not less than 3 meters head of water.

The water shaH be kept in the pi! The system shall be tight at all joints. Pa or sufficient to balance a column of mercury mm in height. The pressure shall be held without introduction of additional air for a period of at least fifteen l S minutes. The building sewer shall be watertight at all points. The water used for test shall be obtained from a potable source of supply. A In buildings or premises condemned by the proper Administrative Authority because of an unsanitary condition of the plumbing system or part thereof.

The test plug shall be so placed that both upper and under sides of the sub-pan shall be subj ected to the test at the point where it is clamped to the drain. No person shall install any water-operated equipment or mechanism or usc any water treating chemical or substances, if it is found that such e4uipment, mechanism, chemical or substance may cause pollution or contamination of the domestic water supply.

Such equipment or mechanism may be permitted only when equipped with an approved backflow prevention device assembly. Approval of Devices or Assemblies - before any device or assembly is installed for the prevention of backflow, the Administrative Authority shall have first approved it.

Devices or assemblies shall be tested for conformity with recognized standards or other standards acceptable to the Administrative Authority.

Devices or assemblies shall be tested for conformity with recognized standards or other standards acceptable to the Administ rative Authority, which arc consistent with the intent of this Code. The person or persons having control of such devices or assemblies shaH maintain all devices or assemblies installed in a potable water supply system for protection against backflow in good working condition. The Administrative Authority or other dcpa11ment having jurisdiction may inspe-Ct such devices or assemblies and, if found to be defective or inoperative.

The effect of three or inorc. In such cases, the airgap shall be measured from the ICP of the wall. May need platforrnlladcle.

J;, of rcce;ltor. Hcquire Access and clearance shall require minimum of mm space between the lowest porlion of the assembly and the grade, floor or platform. Installations elevated more than 1. Where potable water is discharged to the drainage system, it shall be by means of an approved airgap of two 2 pipe diameters from the supply outlet and the top surface of the drainage inlet, but in no case shall the gap be less than 25 mm.

The vacuum breaker shall be installed at the discharge side of the flushometer valve with the critical level at least mm or the distance according to its listing above the overflow rim of a water closet howl or the highest patt of a urinal. In cases where the ballcock has no hush tube, the bottom of the water supply inlet shall be installed 25 mm above the fi.

Water closets having the flush valve seat less than 25 mm above the flood level rim of the closet bowl shall have the ballcock installed in a separate and isolated compartment of the tank, or provided with a sheathed baJlcock, or other equivalent protection. The sections in contact with potable water shall be of material and weights suitable for potable water as set forth in this Chapter.

Water supply inlets not protected by atmospheric vacuun breakers shall be protected by approved airgap. Note: Some water-cooled equipment may produce back p ressure and shall he eqwjJped with the appro'l-'ed protection. The discharge shaH drain through an airgap. All materials used in the water supply system, ex. Exception: Where a grounding. Authority i. Sizes over 51 mm may have cast iron or brass bodies.

Each gate valve shall be a fullway type with working parts of non-corrosive materials. A fhllway gate valve shall be installed on the cold water supply pi! A fullway gate valve shall be installed for each apartment or dwelling occupied by more than o ne family.

In addition to the main supply shutoff valve for cac. The l'. Approved regulators with integral bypasses are acceptable. Each such regulator and strainer shall be accessibly located and have the strainer readi ly accessible for cleaning without removing the regulator or strainer hody or disconnecting the supply piping. In addition tL the required pressure relief valve, an approved and listed expansion tank or other device designed for intermittent operation for thermal expansion control shall be installed whenever the building supply pressure is greater than the required relief valve pressure setting or v.

The tank or device shall be sized in accordance with the manufacturer's rccontmt. No pa1t of such drainpipe shall be trapped and the tenninal end of the drainpipe shall not be threaded nor capped.

Burred ends shall be reamed to the full bore of the pipe or tube. Changes in direction shall be made hy the appropriate use of fittings, except that changes on direction in copper tubing may be made with bends provided that the same are made with proper bending equipment which does not deform or create a loss in cross-sectional area of the tubing.

Provisions shall be made for expansion in hot water pipings. All pipings, equipment, appurtenances and devices shall be instalied in a workmanlike manner in conformity with the provisio:1s and intents of this Code. All water service yard piping shall be at least 0. Field bitumastic coating and wrapping shall provide equivalent protection and application is restricted to those short pipe lengths at points of connection with fittings necessarily stripped for threading and jointing.

Zinc coating galvanized shall not be deemed adequate outside protection for ferrous piping or fittings. Approved non-ferrous pipings such as plastic tubes and pipes need not be wrapped for rustproofing. Where joints are permitted, they shall be brazed and fittings shall be wrought copper Copper tubing shall be fully externally protected with bitumastic coatins and fiberglass wrapping and installed inside a split rigid casing wheneva- installed underground.

Note: For the purpose of this section, "within the building" shall mean. Revised National Plumbing Code ell the Phltlppines Other systems of more than SO tixture units and w ithin range of Tabi e may be sized from that tuble or by method set forth in Appendix A Recommended rules for sizing th: v:ater supply system.

Rough'' charts in Appendix A of this Code. Friction or pressure losses in water meter, valve and fittings shall be obtained from the same sources. Pressure loses through water treating equ,pment. Back flow prevention devices, or other flow restricting devices shall be computed as required in subsection Knowing the available pressure at the water meter or other source of supply, and after subtracting 9.

Select the "Length" column which is equal to or longer than the required length. Follow down the column to a fixture unit value equal to or greater than the total number of f1xture units required by the installation.

Having located the proper fixture unit value for the required length, sizes of meter and building supply pipe will be found in the two left-hand columns. No building water service pipe shall be less than 19 r! The number of fixture units handled by a branch shal l detem1ine the size of tbat branch, fol lowing the methods outlined in subs The final size of the cold water branch or main need not exceed the originally established size ofthe building supply.

Piping serving water heaters plus all required cold water demand, shall be sized to deliver the required hot water demand, but in no case need the piping be larger in size than that required by Table for the total building supply. J Piping which is part offixture equipment; I 51 !

Pipe exposed to damage by sharp surfaces. Supports shall allow free movement, but shal I rt:stri ;t upward movement of lateral runs to avoid reverse grade. Ve rtical pi ping shaH be supported at each story or floor levt Alignment of vertical piping shall be maintained between floors with the use of a mid-story guide. S«tion Thrust Ulocking In lines with rubber gasketed joints, thrust blocks shall be installed at all: 6 Thrust block sizes sha ll be based on the maximum line pressure, pipe size and kind.

S They shall be kept at least 0. Fittings on screwed pipe joints shall be of the recessed drainage type. Burred ends shall be reamed to the full bore of the pipe. J80 l 2J. Drainage pipiug serving baiteries of appliances capahle of producing continuous flows shall he adequately sized to tmwidc for peak loa,A. Clothes washers in groups of thra 3 or more shall be rated at six 6 ftxlure units each for the c:vmnum hori:.

Water dusets shall he cvmpu. Cf second -' V l J. For a continuous flow into a drainage system, such as from sump pump or ejector, air c. No fitting having more than one inlei at the same level shall be used unless such fitting is constructed so the discharge frcm one inlet cannot readily enter into the other inlet. Sixty 60 degree branches or offsets may be used only when installed in a true vertical position. Cleanouts located under cover plates shall be installed to provide the clearances and accessibility required by this Section.

Cleanouts in piping larger than 51 mrn shall have a clearance of not less than 0. No underfloor cleanout in any residential occupancy shall be located more than 6. The method of connection shall be at the top of the horizontal line through a wye branch titting. The gate valve shall be located at the discharge side of the backwater or check valve.

Two 2 fixture units shall be allowed tor each 0. If constructed of poured concrete, the walls and bottom shall be adequately reinforced and designed according to recognized acceptable standards. Metal sumps or tanks shall be of such thickness to serve their intended purpose and s. The invert of the lowest inlet to the tank shall have a mi. The top shall be provided wit h a vent pipe which shall extend separately through the roof, or when permitted, may be combined with other vent pipes.

Such vent shall be large enough to maintain atmospheric pressure within the sump under all normal operating conditions and. Wben the foregoing requirements are met and the vent, after leaving the sump, is combined with vents from fixt ures discharging into the sump, the siz.

Bathtubs, laundries, washing machine standpipes, kitchen sinks and dishwashers shall bt"! Exceptions a Single family residences. Vent Piping 1 Horizcntal and "' Vertical l ' i Excluding trap arm. Except sinks, urinals and dishwashers. Except 6 fixture unit traps or water closets. Based on two 2 percent or For one I percent or When wms an! Such equipment shall be drained by means of indirect waste pipes as defined in Chapter 2 of this Code, and all wastes drained by them shall discharge through an airbreak into an open floor sink or other approved type receptor properly connected to the drainage system.

Such equipment or fixtures shall be drained by means of indirect waste pipes, as defined in Chapter 2 of this Code; and all wastes drained by them shall discharge through an airgap into an open floor sink or other approved type receptor properly connected to the drainage system. The foregoing does not apply to walk"in refrigerators or combination walk"in and reach-in refrigerators used for storage and sales of products packaged in bottles, cartons or containers.

Cooling and air-conditioning equipment may be separated by an airbreak, bur all food equipment shall be separated from the drainage system by a full aJigap. S No plumbing fixtures served by indirect waste pipes or receiving discharge therefrom sha! No Vt! Indirect waste pipes exceedi ng 1. Indirect waste pipes less than 4. Angles and changes of direction in such indirect waste pipes shall be provided with cleanouts to pemlit flushing and cleaning. No standpipe receptOr for any clotheswasher shaH extend more than 0.

No trap for any clotheswasher standpipe receptor shall be installed below the floor, but shaH be roughed no less than 15 em and.