ISO/TC 138/SC 7 - Valves and auxiliary equipment of plastics materials

This document is applicable to two-way or multi-way ball valves manufactured with all types of polypropylene (PP) and chlorinated polyvinylchloride (PVC-C) thermoplastic materials to be used for the transport of pressurized water whether or not intended for human consumption (domestic systems) for applications in buildings and utility branches. NOTE 1 The two-way valve is generally used for sectioning and control of flows, and the multi-way valve is used to divert or mix the flows. For information on their functionality, see ISO 16135:2006, Annex B. NOTE 2 The reader of this document is informed that the water intended for human consumption is subjected to national, regional or local regulatory provisions as applicable. The application classes are indicated in ISO 15874 and ISO 15877 series. This document specifies valve characteristics as follows: — dimensions for assembly in the relevant pipelines, — physical and mechanical requirements. Other materials can fit the scope of this document if the application classes are specified in a material related specific standard. Ball valves specified in this document are not intended to be used in conjunction with pipes made by metallic material and copper alloys.

This document specifies the characteristics of valves made from unplasticized polyamide (PA-U) in accordance with ISO 16486-1, intended to be buried and used for the supply of gaseous fuels. NOTE 1 For the purpose of this document the term gaseous fuels include for example natural gas, methane, butane, propane, hydrogen, manufactured gas, biogas, and mixtures of these gases. Additional information about the suitability for 100 % hydrogen and its admixtures with natural gas is given by ISO 16486-1:2023, Annex C and Annex D. It is applicable to isolating unidirectional and bi-directional valves with spigot ends or electrofusion sockets intended to be fused with PA-U pipes conforming to ISO 16486-2 and PA-U fittings conforming to ISO 16486-3. This document also specifies the test parameters for the test methods it describes. In conjunction with ISO 16486-1, ISO 16486-2, ISO 16486-3 and ISO 16486-5, this document is applicable to PA-U valves and their joints and to joints with components of PA-U and other materials intended to be used under the following conditions: a) a maximum operating pressure (MOP) of up to and including 18 bar1), or limited to 16 bar under regional CEN requirements, at a reference temperature of 20 °C for design purposes; NOTE 2 For the purpose of this document and the references to ISO 8233, MOP is considered to be nominal pressure. b) an operating temperature of −20 °C to 40 °C; NOTE 3 For operating temperatures between 20 °C and 40 °C, derating coefficients are specified in ISO 16486-5. This document covers valves for pipes with a nominal outside diameter, dn, ≤400 mm.

This document specifies a test method for the determination of the opening, closing and running torque of thermoplastics valves. This document is applicable to all types of manually operable thermoplastics valves, with or without actuator, intended to be used for the transport of fluids. NOTE 1 Examples of valve types tested with this method are in ISO 4437-4, ISO 16135, ISO 16136, ISO 16138, ISO 16139, ISO 16486-4, ISO 21787, EN 1555-4[13] and EN 12201-4 [14]. This document does not specify the relationship between the torque and its possible increase after prolonged use of the valve under a specific working condition or wear/chemical aggression of the materials. NOTE 2 Concerning the chemical aggression of the materials, a collection of data is reported in ISO/TR 10358 concerning the endurance test necessary to confirm the ability of hand-operated plastics valves to withstand prolonged use with repeated opening and closing operations. Further information is provided in ISO 8659.

This document specifies the characteristics of valves made from polyethylene (PE) for piping systems in the field of the supply of gaseous fuels. It is applicable to unidirectional and bi-directional isolating valves with spigot ends or electrofusion sockets intended to be fused with PE pipes or fittings conforming to ISO 4437−2 and ISO 4437‑3 respectively. Valves made from materials other than PE, designed for the supply of gaseous fuels conforming to the relevant standards can be used in PE piping systems according to ISO 4437 series, provided that they have PE connections for butt fusion or electrofusion ends, including integrated material transition joints, conforming to ISO 4437-3. It also specifies the test parameters for the test methods referred to in this document. In conjunction with parts 1, 2, 3 and 5 of the ISO 4437 series, this document is applicable to PE valves, their joints and to joints with components of PE and other materials intended to be used under the following conditions: a) a maximum operating pressure (MOP) up to and including 10 bar[1] at a reference temperature of 20 °C for design purposes; NOTE 1 For the purpose of this document and the references to ISO 8233, MOP is considered to be nominal pressure. b) an operating temperature between −20 °C to 40 °C. NOTE 2 For operating temperatures between 20 °C and 40 °C, derating coefficients are defined in ISO 4437‑5. This document covers valve bodies designed for connection with pipes with a nominal outside diameter dn ≤ 400 mm. [1] 1 bar = 0,1 MPa =105 Pa; 1 MPa = 1 N/mm2.

This document specifies the characteristics of valves made from unplasticized polyamide (PA-U) in accordance with ISO 16486-1, intended to be buried and used for the supply of gaseous fuels. It is applicable to isolating unidirectional and bi-directional valves with spigot ends or electrofusion sockets intended to be fused with PA-U pipes or fittings conforming to ISO 16486-2 and ISO 16486-3 respectively. Valves made from material other than unplasticized polyamide designed for the supply of gaseous fuels conforming to the relevant standards are permitted to be used in PA-U piping systems according to the ISO 16486 series provided they have relevant PA-U connections for butt fusion or electrofusion ends (see ISO 16486-3). The component, i.e. the complete valve, is required to fulfil the requirements of this document. This document also specifies the test parameters for the test methods it describes. In conjunction with ISO 16486-1, ISO 16486-2, ISO 16486-3 and ISO 16486-5, this document is applicable to PA-U valves and their joints and to joints with components of PA-U and other materials intended to be used under the following conditions: a) a maximum operating pressure (MOP) of up to and including 18 bar[1], or limited to 16 bar under regional CEN requirements, at a reference temperature of 20 °C for design purposes; NOTE 1 For the purpose of this document and the references to ISO 8233, MOP is considered to be nominal pressure. b) an operating temperature of −20 °C to 40 °C; NOTE 2 For operating temperatures between 20 °C and 40 °C, derating coefficients are specified in ISO 16486-5. This document covers valves for pipes with a nominal outside diameter, dn, ≤ 400 mm. [1] 1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm².

This document specifies the endurance test necessary to confirm the ability of hand-operated plastics valves to withstand prolonged use, with repeated opening and closure. It does not specify the ability of valves to withstand adverse conditions, in particular those of chemically aggressive fluid media and/or environments, or excessive fluid velocities and cavitation. NOTE Concerning the chemical aggression of the materials, a classification table is reported in ISO/TR 10358[1]. This document includes values of the parameters necessary for the proper performance of the endurance test, with the reservation that the parameters are different in particular product standards (see 5.1).

ISO 16139:2006 specifies requirements for the design, functional characteristics and manufacture of gate valves made of thermoplastics materials intended for isolating service, their connection to the pipe system, the body materials and their pressure/temperature rating between -40 degrees Celsius and +120 degrees Celsius, for a lifetime of 25 years, and also specifies their tests. ISO 16139:2006 is applicable to hand- or power-operated valves to be installed in industrial pipe systems, irrespective of the field of application and the fluids to be conveyed. This International Standard is concerned with the range of DN 10, DN 15, DN 20, DN 25, DN 40, DN 50, DN 65, DN 80, DN 100, DN 125, DN 150, DN 200, DN 250, DN 300 and DN 350, and the range of PN 6, PN 10, PN 16, and Class 150.

ISO 16136:2006 specifies requirements for the design, functional characteristics and manufacture of butterfly valves made of thermoplastics materials intended for isolating and control service, their connection to the pipe system, the body materials and their pressure/temperature rating between -40 degrees Celsius and +120 degrees Celsius, for a lifetime of 25 years, and also specifies their tests. ISO 16136:2006 is applicable to hand- or power-operated valves to be installed in industrial pipe systems, irrespective of the field of application and the fluids to be conveyed. It is concerned with the range of DN 15, DN 20, DN 25, DN 32, DN 40, DN 50, DN 65, DN 80, DN 100, DN 125, DN 150, DN 200, DN 250, DN 300, DN 350, DN 400, DN 450, DN 500 and DN 600, and the range of PN 6, PN 10, PN 16 and Class 150.

ISO 21787:2006 specifies requirements for the design, functional characteristics and manufacture of globe valves made of thermoplastics materials intended for isolating and control service, their connection to the pipe system, the body materials and their pressure/temperature rating between -40 degrees Celsius and +120 degrees Celsius, for a lifetime of 25 years, and also specifies their tests. ISO 21787:2006 is applicable to hand- or power-operated valves to be installed in industrial pipe systems, irrespective of the field of application and the fluids to be conveyed. It International Standard is concerned with the range of DN 10; DN 15, DN 20, DN 25, DN 40, DN 50, DN 65, DN 80, DN 100, DN 125 and DN 150, and the range of PN 6, PN 10, PN 16 and Class 150.

ISO 16138:2006 specifies requirements for the design, functional characteristics and manufacture of diaphragm valves made of thermoplastics materials intended for isolating and control service, their connection to the pipe system, the body materials and their pressure/temperature rating between -40 degrees Celsius and +120 degrees Celsius, for a lifetime of 25 years, and also specifies their tests. ISO 16138:2006 is applicable to hand- or power-operated valves to be installed in industrial pipe systems, irrespective of the field of application and the fluids to be conveyed. It is concerned with the range of DN 8, DN 10, DN 15, DN 20, DN 25, DN 32, DN 40, DN 50, DN 65, DN 80, DN 100, DN 125, DN 150, DN 200 and DN 250, and the range of PN 6, PN 10, PN 16 and Class 150.

ISO 16135:2006 specifies requirements for the design, functional characteristics and manufacture of ball valves made of thermoplastics materials intended for isolating service, for control service, and to divert/mix fluids, their connection to the pipe system, the body materials and their pressure/temperature rating between -40 degrees Celsius and + 120 degrees Celsius, for a lifetime of 25 years, and also specifies their tests. ISO 16135:2006 is applicable to hand- or power-operated valves to be installed in industrial pipe systems, irrespective of the field of application and the fluids to be conveyed. It is concerned with the ranges DN 8, DN 10, DN 15, DN 20, DN 25, DN 32, DN 40, DN 50, DN 65, DN 80, DN 100, DN 125 and DN 150, and the ranges PN 6, PN 10, PN 16 and PN 25, and Class 150 and Class 300.

ISO 16137:2006 specifies requirements for the design, functional characteristics and manufacture of check valves made of thermoplastics materials intended to allow the flow of liquid fluids through the valve in one direction only and to prevent backflow, their connection to the pipe system, the body materials and their pressure/temperature rating between -40 degrees Celsius and + 120 degrees Celsius, for a lifetime of 25 years, and also specifies their tests. ISO 16137:2006 is applicable to valves to be installed in industrial pipe systems, irrespective of the field of application and the fluids to be conveyed. It is concerned with the range of DN 8, DN 10, DN 15, DN 20, DN 25, DN 40, DN 50, DN 65, DN 80, DN 100, DN 125, DN 150, DN 200, DN 250, DN 300, DN 350, DN 400, DN 500 and DN 600, and the range of PN 6, PN 10, PN 16, PN 25, and Class 150 and Class 300.

ISO 9393-2:2005 specifies the test parameters and conditions for hydrostatic-pressure tests on valves made of the following thermoplastic materials: ABS, PE 80, PE 100, PP-H, PP-B, PP-R, PP-R-GF, PVC-C, PVC-U and PVDF. The tests cover the following aspects: the material used for manufacturing valves; the pressurized valve components; the complete valve.

ISO 9393-1:2004 specifies the test methods for the resistance to internal pressure and the leaktightness of thermoplastics valves for use with cold water or with industrial fluids, excluding gas applications covered by thermoplastics-valve product standards.

ISO 16486-4:2016 specifies the characteristics of valves made from unplasticized polyamide (PA-U) in accordance with ISO 16486‑1, intended to be buried and used for the supply of gaseous fuels. Valves made from other material than unplasticized polyamide designed for the supply of gaseous fuels conforming to the relevant standards are permitted to be used in PA-U piping system according to ISO 16486 provided they have relevant PA-U connections for butt fusion or electrofusion ends (see ISO 16486‑3). The component, i.e. the complete valve, shall fulfil the requirements of this part of ISO 16486. It also specifies the test parameters for the test methods referred to in this part of ISO 16486. It is applicable to bi-directional valves with spigot end or electrofusion socket intended to be jointed with PA-U pipes conforming to ISO 16486‑2 without any fittings or with PA-U fittings conforming to ISO 16486‑3. ISO 16486-4:2016 covers valves for pipes with a nominal outside diameter, dn, ≤250 mm.

ISO 4437-4:2015 specifies the characteristics of valves made from polyethylene (PE) for piping systems in the field of the supply of gaseous fuels. It also specifies the test parameters for the test methods referred to in this part of ISO 4437.

Specifies the test methods and requirements for the resistance to internal pressure and leaktightness. Applies to thermoplastic valves intended for the transport of fluids. The requirements given in parts 1 and 2 are applicable to valves intended for use with cold water. Reference should be made to the relevant product standards for requirements or test methods applicable to valves intended for use with other fluids and/or fluids at other temperatures.

Deals with current types of polypropylene (PP) valves and should be used as guidance by manufacturers and users. Specifies the series of diameters to be used and the basic dimensions, which are common to all types of polypropylene (PP) valves for pipes under pressure for the transport of fluids, regardless of their method of manufacture and composition.

Specifies a method for testing the fatigue strength and performance of thermoplastic valves incorporated in a valve assembly with its obturator mechanism under pressure. Repeated opening and closing shall be performed for as many cycles and using the torque as specified by the particular product standard.

Specifies a test method for the determination of the opening and closing torque of thermoplastic valves. Testing shall be carried out by nominal pressure before and after a conditioning period.

Specifies the series of diameters to be used and the basic dimensions which are common to all types of PVC-U-valves for pipes under pressure of 10 bar to 16 bar, regardless of their method of manufacture and composition.

Specifies and identifies in a table of comparison the possible types of connection of thermoplastic valves to various pipe systems, these are butt fusion, solvent cemented or socket fusion, screwed, flanged and elastomeric sealing rings.