Tonris This International Standard specifies the characteristics and requirements for components such as pipes, fittings and valves made of ABS, PVC-U and PVC-C, intended to be used for thermoplastics piping systems in the field of industrial applications above ground. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard io inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Standards Subsctiption may be the perfect solution. Liquid bath or Longitudinal reversion a Temperature Immersion time: If these details are oso be used for any other purpose than implementation then the prior written permission of BSI must be obtained.
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Processed pipes are straight and show a very low out of roundness. The wall structure is homogeneous and even. OD-tolerances surpass the requirements of to ISO and are compatible with the fitting programme of Georg Fischer Piping Systems for easy pre-assembly and minimized gaps. Any installation should follow the Georg Fischer Piping Systems installation guidelines for industrial piping and the guidelines issued by the German association of plastic pipe producers KRV.
They need to be tested according to EN All threaded connections shall have pipe threads in accordance with the requirements of ISO These flanges are manufactured in a seamless technology injection moulding process by Georg Fischer Piping Systems.
The flange shall be optimised with a V-groove in the inner diameter to ensure an evenly distributed force on the thermo plastic flange adapter. Alternatively the backing flanges in metric sizes can be from or unplastisized polyvinyl chloride, PVC-U designed according to EN ISO , in a thermo plasticoriented design. The backing flanges shall be marked with dimension, PN-value, standards, brand and lot number.
Gaskets in metric sizes DN10 — shall consist of elastomeric material according to EN, designed with or without metal reinforcement for use with solvent cementable flange adaptors according to DIN Gaskets with reinforcement shall be designed to be centred by the outer diameter. Gaskets with reinforcement shall provide fixation aids to fit on the flange bolts. Incorporated into its design shall be a safety stem with a predetermined breaking point above the bottom O-ring, preventing any media leaking in the event of damage.
The valve nut threads shall be buttress type to allow fast and safe radial mounting and dismounting of the valve during installation or maintenance work. Seats shall be PTFE with backing rings creating self-adjusting seals and constant operating torque. The handle shall include in its design an integrated tool for removal of the union bush. Union bush shall have left-hand threads to prevent possible unscrewing when threaded end connectors are removed from pipe. The upper body shall be PPGF polypropylene glass fibre reinforced connected to the lower body with exposed stainless steel bolts.
A position indicator integrated into the hand wheel must be present to determine diaphragm position. The lever handle shall be lockable in increments of 5 degrees.
There shall always be six teeth engaged between the ratchet and the index plate to ensure accurate and safe positioning of the lever. As an option, the hand lever shall be lockable. The hand lever shall be manufactured of high strength PPGF polypropylene glass fibre reinforced. The option of an integrated electric position indicator shall be available.
The electric position indicator shall be integrated into the mounting flange. Butterfly valves shall have low actuation torque to enable easy operation. All butterfly valves Type manufactured by Georg Fischer Piping Systems are designed for a nominal pressure rate of 10 bar. All butterfly valves Type are designed for a nominal pressure rate of 4 bar. Union bush shall have a left hand thread to prevent possible unscrewing when threaded end connectors are removed from pipe.
This valve shall be suitable for mounting in a vertical position. Following is a general test procedure for Georg Fischer plastic piping. It applies to most applications. Certain applications may require additional consideration. For further questions regarding your application, please contact your local GF representativeAll piping systems should be pressure tested prior to being placed into operational service.
All pressure tests should be conducted in accordance with the appropriate building, plumbing, mechanical and safety codes for the area where the piping is being installed. When testing plastic piping systems, all tests should be conducted hydrostatically and should not exceed the pressure rating of the lowest rated component in the piping system often a valve.
When hydrostatic pressure is introduced to the system, it should be done gradually through a low point in the piping system with care taken to eliminate any entrapped air by bleeding at high points within the system. Allow one hour for system to stabilize after reaching desired pressure. After the hour, in case of pressure drop, increase pressure back to desired amount and hold for 30 minutes.
DIN EN ISO 15493 industria aplicación, tubería de plástico PVC agua caliente
ISO FDIS 15493