Non-pressurized piping installation
Non-pressurized piping installation, Total:182 items.
The international standard classification for "Non-pressurized piping installation" includes: Pipeline components and pipelines .
The Chinese standard classification for "Non-pressurized piping installation" includes: Pressure vessel .
Professional Standard - Special Equipment Specification
- TSG D0001-2009 Pressure Pipe Safety Technology Supervision Regulation for Industrial Pressure Pipe
- TSG D3001-2009 Pressure Pipe Installation Licensing Regulation
未注明发布机构
- DIN EN 14680 E:2013-07 Adhesives for non-pressure thermoplastic piping systems - Specifications
- CSA B1800-2021 Thermoplastic nonpressure piping compendium
- AS 4041:2006(R2016) Pressure piping
国家市场监督管理总局、中国国家标准化管理委员会
- GB/T 38942-2020 Pressure piping code—Utility piping
- GB/T 20801.4-2020 Pressure piping code - Industrial piping - Part 4: Fabrication and assembly
- GB/T 20801.6-2020 Pressure piping code - Industrial piping - Part 6: Safeguarding
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 20801.4-2006 Pressure Piping Code - Industrial Piping - Part 4: Fabrication and Assembly
- GB/T 20801.6-2006 Pressure Piping Code - Industrial Piping - Part 6: Safeguarding
- GB/T 32270-2015 Pressure piping code―Power piping
- GB/T 32270-2024 Pressure piping code—Power piping
Anhui Provincial Standard of the People's Republic of China
- DB34/T 1488-2011 Pressure Pipe Installation Supervision Inspection Regulation for Ammonia Refrigeration System
- DB34/T 2285-2015 Power pipeline installation supervision and inspection regulations
- DB34/T 1488-2020 Ammonia Refrigeration System Pressure Piping Installation Supervision and Inspection Regulations
Hebei Provincial Standard of the People's Republic of China
- DB13/T 2076-2014 Pressure pipeline safety performance evaluation method-industrial pipeline
国家能源局
- NB/T 20453-2017 Technical regulation for installation of primary reactor coolant piping in passive pressurized water reactor nuclear power plant
Group Standards of the People's Republic of China
- T/NTAS 019-2023 Safety operating procedures for periodic inspection of pressure vessels and pressure pipelines
- T/CNSCPA 025-2023 Nuclear Pressure Pipeline Safety Technical Supervision Regulations
Professional Standard - Chemical Industry
- HG/T 21581-1995HK02 Pressure Gauge and Pressure Transmitter Pipeline Connection Installation Atlas
中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会
- GB/T 34275-2017 Pressure piping code―Long-distance pipeline
Inner Mongolia Provincial Standard of the People's Republic of China
- DB15/T 1477-2018 Atmospheric pressure pipeline installation quality inspection rules
SCC
- AWWA C603-2005 Installation of Asbestos Cement Pressure Pipe
- AS A88.1:1970 Cast iron non-pressure pipes
- AS 4058:1992 Precast concrete pipes (pressure and non-pressure)
- CSA B1800-1999 Plastic Nonpressure Pipe Compendium
- CSA B1800-2018 Thermoplastic nonpressure piping compendium
- CSA B1800-2024 Thermoplastic Nonpressure Piping Compendium
- CAN/CSA B1800-15:2015 Thermoplastic non-pressure piping compendium
- BS 8010-2.4:1988 Code of practice for pipelines. Pipelines on land: design, construction and installation-Prestressed concreted pressure pipelines
- AS CB18.1:1967 Design, fabrication, installation and inspection of pressure piping (known as the SAA Pressure Piping Code), Part 1: Ferrous piping
- AS CB18.1 INT 1:1971 Design, fabrication, installation and inspection of pressure piping (known as the SAA Pressure Piping Code) - Interpretations to SAA Pressure Piping Code No 1 (October 1971) - Application of AS 1074 pipe for pressure piping
- AWWA DSS92007 Large Diameter Pressure Pipeline Trenchless Rehabilitation
- BS CP 331-3:1974 Code of practice for installation of pipes and meters for town gas-Low pressure installation pipes
- AS 1135:1973 Rules for the design, fabrication, installation and inspection of non-ferrous pressure piping (known as the SAA Non-ferrous Pressure Piping Code)
- UNE-CEN/TS 1852-3:2004 Plastics piping systems for non-pressure underground drainage and sewerage - Polypropylene (PP) - Part 3: Guidance for installation
- UNE 60670-8:2005 Gas installations pipework supplied at maximum operating pressure (MOP) up to and including 5 bar. Part 8: Pressure tightness tests for receiving installation pipework
- AS 4041:1998 Pressure piping
- AS 4041:1992 Pressure piping
- NS-EN 15001-2:2023 Gas supply systems — Gas installation pipework with an operating pressure greater than 0,5 bar for industrial installations and greater than 5 bar for industrial and non-industrial installations — Part 2: Detailed functional requirements for commission...
- SN-CEN/TS 1852-3:2003 Plastics piping systems for non-pressure underground drainage and sewerage — Polypropylene (PP) — Part 3: Guidance for installation
- NS-EN 14680:2006 Adhesives for non-pressure thermoplastic piping systems — Specifications
- DIN CEN/TS 1046:2023 Thermoplastics piping and ducting systems - Outside the building structures for gravity and pressurised systems - Trench installation; German version CEN/TS 1046:2021
- BS CP 2010-1:1966 Pipelines-Installation of pipelines in land
- SN-CEN/TR 12108:2012 Plastics piping systems — Guidance for the installation inside buildings of pressure piping systems for hot and cold water intended for human consumption
- NS-ENV 12108:2001 Plastics piping systems — Guidance for the installation inside buildings of pressure piping systems for hot and cold water intended for human consumption
- DANSK DS/ENV 12108:2001 Plastics piping systems - Guidance for the installation inside buildings of pressure piping systems for hot and cold water intended for human consumption
- UNE 143001:2002 EX Adhesives for thermoplastic piping systems. Specifications for non-pressure systems.
- AENOR UNE-CEN/TR 12108 IN:2015 Plastics piping systems - Guidance for the installation inside buildings of pressure piping systems for hot and cold water intended for human consumption
- AS 3517:1995 Capillary fittings of copper and copper alloy for non-pressure sanitary plumbing applications
- DANSK DS/CEN/TR 12108:2012 Plastics piping systems - Guidance for the installation inside buildings of pressure piping systems for hot and cold water intended for human consumption
- NS-EN 15001-1:2023 Gas Infrastructure — Gas installation pipework with an operating pressure greater than 0,5 bar for industrial installations and greater than 5 bar for industrial and non-industrial installations — Part 1: Detailed functional requirements for design, ma...
- AS 1631:1974 Cast iron non-pressure pipes and pipe fittings
- AS 3517:1987 Capillary fittings of copper and copper alloy for non-pressure sanitary plumbing applications
- AWWA ACE65239 Trenchless Technologies for Drinking Water Pipeline Installation and Replacement
- BS 5911-103:1994 Precast concrete pipes, fittings and ancillary products-Specification for prestressed non-pressure pipes and fittings with flexible joints
- SN-CEN/TS 1046:2021 Thermoplastics piping and ducting systems - Outside the building structures for gravity and pressurised systems - Trench installation
- DANSK DS/CEN/TS 1046:2021 Thermoplastics piping and ducting systems – Outside the building structures for gravity and pressurised systems – Trench installation
- UNE-EN 14680:2007 Adhesives for non-pressure thermoplastic piping systems - Specifications
- UNE-ENV 1401-3:2002 Plastics piping systems for non-pressure underground drainage and sewerage - Unplasticized poly(vinyl chloride) (PVC-U) - Part 3: Guidance for installation.
- NS 2962:2000 Plastics pipes — Pipes and fittings with structured wall of polypropylene (PP) for underground non-pressure piping systems for surface water
- NECA 700-2010 Recommended Practice for Installing Underground Nonmetallic Utility Duct (ANSI)
- NECA 605-2005 Recommended Practice for Installing Underground Nonmetallic Utility Duct (ANSI)
- BS PD CEN/TR 12108:2012 Plastics piping systems. Guidance for the installation inside buildings of pressure piping systems for hot and cold water intended for human consumption
ZA-SANS
- SANS 677:2010 Concrete non-pressure pipes
- SANS 677:2003 Concrete non-pressure pipes
United States Navy
- NAVY MIL-H-24239-1966 HOSE ASSEMBLIES, HYDRAULIC, NONMAGNETIC, FOR MINESWEEPING TENSIOMETERS
- NAVY MIL-H-24239 NOTICE 1-1998 HOSE ASSEMBLIES, HYDRAULIC, NONMAGNETIC, FOR MINESWEEPING TENSIOMETERS
- NAVY MIL-H-24239 (2)-1967 HOSE ASSEMBLIES, HYDRAULIC, NONMAGNETIC, FOR MINESWEEPING TENSIOMETERS
- NAVY MIL-STD-419 D-1987 CLEANING, PROTECTING, AND TESTING PIPING, TUBING, AND FITTINGS FOR HYDRAULIC POWER TRANSMISSION EQUIPMENT [Use In Lieu Of: NAVY MIL-STD-00419 B]
American Water Works Association (AWWA)
- AWWA C603-1996 Installation of Asbestos-Cement Pressure Pipe R(2000)
- AWWA C302-2004 Reinforced Concrete Pressure Pipe, Noncylinder Type
- AWWA C605-2005 Underground Installation of Polyvinyl Chloride (PVC) Pressure Pipe and Fittings for Water Second Edition
- AWWA C605-1994 Underground Installation of Polyvinyl Chloride (PVC) Pressure Pipe and Fittings for Water First Edition
- AWWA C303-2002 Concrete Pressure Pipe, Bar-Wrapped, Steel-Cylinder Type
International Organization for Standardization (ISO)
- ISO 4179:2024 Ductile iron pipes and fittings for pressure and non-pressure pipelines
- ISO 7186:1983 Ductile iron pipes and accessories for non-pressure pipe-lines
- ISO/DIS 4179 Ductile iron pipes and fittings for pressure and non-pressure pipelines — Cement mortar lining
- ISO/FDIS 4179:2023 Ductile iron pipes and fittings for pressure and non-pressure pipelines — Cement mortar lining
- ISO 4179:2005 Ductile iron pipes and fittings for pressure and non-pressure pipelines - Cement mortar lining
- ISO 4179:1985 Ductile iron pipes for pressure and non-pressure pipelines; Centrifugal cement mortar lining; General requirements
- ISO 10802:1992 Ductile iron pipelines; hydrostatic testing after installation
Indonesia Standards
- SNI 07-3081-1992 Ductile cast iron pipes and accessories for non pressure pipe lines
- SNI 03-3442-1993 Code for piezometer installation of open stand pipe tubing casagrande
- SNI 03-0687-1989 Straight line clay pipes for unpressured water supply
(U.S.) Plastic Pipe Association
- PPI TN-11-1999 Suggested Temperature Limits for the Operation and Installation of Thermoplastic Piping in Non-Pressure Applications
British Standards Institution (BSI)
- DD CEN/TS 1852-3:2003 Plastics piping systems for non-pressure underground drainage and sewerage. Polypropylene (PP). Guidance for installation
- BS DD CEN/TS 1852-3:2003 Plastics piping systems for non-pressure underground drainage and sewerage - Polypropylene (PP) - Guidance for installation
- DD ENV 1401-3-2001 Plastics piping systems for non-pressure underground drainage and sewerage. Unplasticized poly(vinylchloride) (PVC-U). Guidance for installation
- BS ISO 4179:2005 Ductile iron pipes and fittings for pressure and non-pressure pipelines - Cement mortar lining
- BS ISO 4179:2024 Ductile iron pipes and fittings for pressure and non-pressure pipelines. Cement mortar lining
- BS EN 14680:2006 Adhesives for non-pressure thermoplastic piping systems - Specifications
- 23/30430401 DC BS ISO 4179. Ductile iron pipes and fittings for pressure and non-pressure pipelines. Cement mortar lining
- DD ENV 12108-2001 Plastics piping systems. Guidance for the installation inside buildings of pressure systems for hot and cold water intended for human consumption
- BS EN 15001-2:2023 Gas supply systems. Gas installation pipework with an operating pressure greater than 0,5 bar for industrial installations and greater than 5 bar for industrial and non-industrial installations. Detailed functional requirements for com...
- BS EN 15001-1:2023 Gas Infrastructure. Gas installation pipework with an operating pressure greater than 0,5 bar for industrial installations and greater than 5 bar for industrial and non-industrial installations. Detailed functional requirements for des...
- 17/30349659 DC BS EN 15001-2. Gas supply systems. Gas installation pipework with an operating pressure greater than 0,5 bar for industrial installations and greater than 5 bar for industrial and non-industrial installations. Part 2. Detailed functional requirements f...
- BS ISO 10802:2020 Ductile iron pipelines. Hydrostatic testing after installation
American Society for Testing and Materials (ASTM)
- ASTM D2774-20 Standard Practice for Underground Installation of Thermoplastic Pressure Piping
- ASTM F2562/F2562M-07 Standard Specification for Steel Reinforced Thermoplastic Ribbed Pipe and Fittings for Non-Pressure Drainage and Sewerage
- ASTM F2562/F2562M-15(2019) Specification for Steel Reinforced Thermoplastic Ribbed Pipe and Fittings for Non-Pressure Drainage and Sewerage
- ASTM F690-86(2003) Standard Practice for Underground Installation of Thermoplastic Pressure Piping Irrigation Systems
- ASTM F690-86(1994) Standard Practice for Underground Installation of Thermoplastic Pressure Piping Irrigation Systems
- ASTM F690-86(2003)e2 Standard Practice for Underground Installation of Thermoplastic Pressure Piping Irrigation Systems
- ASTM F690-86(2003)e1 Standard Practice for Underground Installation of Thermoplastic Pressure Piping Irrigation Systems
- ASTM F645-13 Standard Guide for Selection, Design, and Installation of Thermoplastic Water- Pressure Piping Systems
- ASTM F645-12 Standard Guide for Selection, Design, and Installation of Thermoplastic Water- Pressure Piping Systems
ES-AENOR
- UNE 53-399-1990 Recommended techniques for the installation and operation of non-plasticized polyvinyl chloride pressure pipes for water conduction
GOSTR
- GOST 6482-2011 Reinforced concrete nonpressure pipes. Specifications
BE-NBN
- NBN 866-1971 Non-plastic film-coated PVC conduit joints for pressure pipes
- NBN 869-1971 Physical specifications and functions of non-plastic film-coated PVC conduit joints for pressure pipes
- NBN 867-1971 Non-plastic film-coated PVC conduit joints for pressure pipes. Specific specifications and dimensions of cold welding joints. Pressure series
RU-GOST R
- GOST 6482-1988 Reinforced concrete non-pressure pipes. Specifications
Standard Association of Australia (SAA)
- AS 1631:1994 Cast grey and ductile iron non-pressure pipes and fittings
- AS 3495:1997 Authorization requirements for plumbing products - Stainless steel non-pressure pipes and fittings
- AS 4041:2006 Pressure piping
- AS/NZS 4058:2007 Precast concrete pipes (pressure and non-pressure)
- AS 3517:2007 Capillary fittings of copper and copper alloy for non-pressure sanitary plumbing applications
American National Standards Institute (ANSI)
- ANSI/ASTM D2774:2021 Standard Practice for Underground Installation of Thermoplastic Pressure Piping
- ANSI/AWWA C603-2005 Installation of Asbestos - Cement Pressure Pipe
- ANSI/NECA 111-2003 Standard for Installing Nonmetallic Raceways (RNC, ENT and LFNC)
GOST
- GOST R 53201-2023 Polymer composite pipes and fittings with threaded connections for pressure and non-pressure piping. Specifications
ES-UNE
- UNE 60670-8:2023 Gas installations pipework supplied at maximum operating pressure (MOP) up to and including 5 bar. Part 8: Pressure tightness tests for receiving installation pipework
- UNE-CEN/TS 1046:2021 Thermoplastics piping and ducting systems - Outside the building structures for gravity and pressurised systems - Trench installation (Endorsed by Asociación Española de Normalización in September of 2021.)
- UNE 53008-2:2016 Plastics piping systems. Multilayer pipe systems for gas installations pipework with a maximum operating pressure up to and including 5 bar (500 kPa). Part 2: Design, installation and maintenance
German Institute for Standardization
- DIN EN 14680:2006 Adhesives for non-pressure thermoplastic piping systems - Specifications; English version of DIN EN 14680:2006-12
- DIN EN 14680:2015-12 Adhesives for non-pressure thermoplastic piping systems - Specifications; German version EN 14680:2015
- DIN CEN/TS 1852-3:2005-08 Plastics piping systems for non-pressure underground drainage and sewerage - Polypropylene (PP) - Part 3: Guidance for installation; German version CEN/TS 1852-3:2003 + A1:2005
- DIN 43614-1:1979 Switchgear and controlgear conduits for pressure-gas pipelines; copper conduits
Association Francaise de Normalisation
- NF EN 14680:2015 Adhesives for non-pressure thermoplastic piping systems - Specifications
- NF T76-325*NF EN 14680:2015 Adhesives for non-pressure thermoplastic piping systems - Specifications
- NF T76-325:2006 Adhesives for non-pressure thermoplastic piping systems - Specifications.
- NF EN 13598-1:2020 Plastic piping systems for buried non-pressure sewerage connections and collectors - Unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE) - Part 1: specifications relating to...
- NF EN 13598-2:2020 Plastic piping systems for underground non-pressure sewerage connections and collectors - Unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE) - Part 2: specifications relating to...
- NF EN 15001-1:2023 Gas infrastructure - Pipelines of gas installations with a working pressure above 0.5 bar for industrial installations and above 5 bar for industrial and non-industrial installations (domestic and...
- NF P41-211/A1:2000 DTU 60.31 - Building works - Unplasticized polyvinyl chloride piping installation - Cold water under pressure - Technical specifications.
- NF EN 13476-1:2018 Plastic pipe systems for buried non-pressure sewerage connections and collectors - Pipe systems with structured walls made of unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and p...
- NF EN 13476-3+A1:2020 Plastic pipe systems for underground non-pressure sewerage connections and collectors - Structured wall pipe systems made of unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and plastic...
- NF EN 13476-2/IN1:2020 Plastic pipe systems for underground non-pressure sewerage connections and collectors - Structured wall pipe systems made of unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and plastic...
- NF EN 13476-2+A1:2020 Plastic pipe systems for underground non-pressure sewerage connections and collectors - Structured wall pipe systems made of unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and plastic...
- NF EN 13476-3/IN1:2020 Plastic pipe systems for underground non-pressure sewerage connections and collectors - Structured wall pipe systems made of unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and plastic...
European Committee for Standardization (CEN)
- EN 14680:2015 Adhesives for non-pressure thermoplastics piping systems - Specifications
- EN 14680:2006 Adhesives for non-pressure thermoplastic piping systems - Specifications
- PD CEN/TS 1046:2021 Thermoplastics piping and ducting systems - Outside the building structures for gravity and pressurised systems - Trench installation
Lithuanian Standards Office
- LST EN 640-2000 Reinforced concrete pressure pipes and distributed reinforcement concrete pressure pipes (non-cylinder type), including joints and fittings
- LST CEN/TS 1046-2021 Thermoplastics piping and ducting systems - Outside the building structures for gravity and pressurised systems - Trench installation
- LST EN 14680-2007 Adhesives for non-pressure thermoplastic piping systems - Specifications
- LST EN 642-2000 Prestressed concrete pressure pipes, cylinder and non-cylinder, including joints, fittings and specific requirements for prestressing steel for pipes
AENOR
- UNE-EN 640:1995 REINFORCED CONCRETE PRESSURE PIPES AND DISTRIBUTED REINFORCEMENT CONCRETE PRESSURE PIPES (NON-CYLINDER TYPE), INCLUDING JOINTS AND FITTINGS.
- UNE 60670-8:2014 Gas installations pipework supplied at maximum operating pressure (MOP) up to and including 5 bar. Part 8: Pressure tightness tests for receiving installation pipework
- UNE 60620-4:2005 Natural gas receiving installations with pressure supply over 5 bar. Part 4: Installation Pipes.
- UNE-CEN/TS 14541:2008 EX Plastics pipes and fittings for non-pressure applications - Utilisation of non-virgin PVC-U, PP and PE materials
- UNE-EN 642:1995 PRESTRESSED CONCRETE PRESSURE PIPES, CYLINDER AND NON-CYLINDER, INCLUDING JOINTS, FITTINGS AND SPECIFIC REQUIREMENT FOR PRESTRESSING STEEL FOR PIPES.
Danish Standards Foundation
- DS/EN 640:1995 Reinforced concrete pressure pipes and distributed reinforcement concrete pressure pipes (non-cylinder type), including joints and fittings
- DS/CEN/TS 1852-3/A1:2006 Plastics piping systems for non-pressure underground drainage and sewerage - Polypropylene (PP) - Part 3: Guidance for installation
- DS/CEN/TS 1852-3:2003 Plastics piping systems for non-pressure underground drainage and sewerage - Polypropylene (PP) - Part 3: Guidance for installation
- DS/CEN/TS 1046:2021 Thermoplastics piping and ducting systems – Outside the building structures for gravity and pressurised systems – Trench installation
- DS/EN 14680:2007 Adhesives for non-pressure thermoplastic piping systems - Specifications
- DS/EN 642:1995 Prestressed concrete pressure pipes, cylinder and non-cylinder, including joints, fittings and specific requirement for prestressing steel for pipes
NEMA - National Electrical Manufacturers Association
- NEMA TCB 2-2017 Guidelines for the Selection and Installation of Underground Nonmetallic Raceways
- NEMA TCB 2-2012 NEMA Guidelines for the Selection and Installation of Underground Nonmetallic Raceways
- NEMA TCB 2-2000 NEMA Guidelines for the Selection and Installation of Underground Nonmetallic Duct
CZ-CSN
- CSN 38 6410 Z5-1998 Natural gas pipelines and connectors with very high pressure
- CSN 30 3532-1986 Road vehicles.Hydraulic braking systems.Pipes,tapped holes,male fittings and hose end fittings
BELST
- STB 1163-2012 Concrete and reinforced concrete non pressure pipes. Specifications
HU-MSZT
- MSZ 7400/4-1979 Safety equipment for boilers and pressure cookers. safe pipeline
CN-STDBOOK
- 图书 3-9932 Pressure Piping Code for Industrial Piping
DE-GPVA
- AD 2000-Merkblatt W4-2008 Materials for pressure vessels, piping and accessories.Tubes made from non-alloy and alloy steels
AT-ON
- ONORM M 7845-1989 Guidelines for welded joints on boilers, pressure vessels and pressure-pipelines of unalloyed and alloyed steels
- ONORM ISO 4179:1988 Ductile iron pipes for pressure and non-pressure pipelines; centrifugal cement mortar lining; general requirements
IT-UNI
- UNI CEN/TS 1046-2021 Thermoplastics piping and ducting systems - Outside the building structures for gravity and pressurised systems - Trench installation
- UNI 1283-1967 pipeline. Nominal pressure
- UNI ISO 10802:2020 Ductile iron pipelines — Hydrostatic testing after installation
US-FCR
- FCR FED H-08-4 VOL 3 SEC II 610.7-1988 DUCT PRESSURE CLASSES
- FCR UFGS-40 17 26.00 20-2006 WELDING PRESSURE PIPING
Korean Agency for Technology and Standards (KATS)
- KS D ISO 10802-2006(2011) Ductile iron pipelines-Hydrostatic testing after installation
- KS D ISO 10802:2013 Ductile iron pipelines-Hydrostatic testing after installation
- KS D ISO 10802:2006 Ductile iron pipelines-Hydrostatic testing after installation
- KS D ISO 10802-2013 Ductile iron pipelines-Hydrostatic testing after installation
TH-TISI
- TIS 2195-2004 Ductile iron pipelines.hydrostatic testing after installation
CH-SNV
- SN ISO 105/X09:1984 pipeline. Ferrous metal piping notes and guidelines. Rated pressure; working pressure; test pressure
American Society of Mechanical Engineers (ASME)
- ASME A112.19.9M-1991(R2008) Non-Vitreous Ceramic Plumbing Fixtures
Pressure piping installation,non pressure piping,Non-pressurized piping installation,Pressure piping installation permit rules