This article is about SAES-L-610 which is about Nonmetallic Piping in Oily Water Services and download SAES-L-610 PDF for piping and mechanical engineers, supervisors and project managers. This is saudi aramco standard based on international codes and standards and useful for piping and mechanical engineering knowledge to get job as engineers, QC Supervisors and QC managers, Engineering managers and technicians.
SAES-L-610 PDF Download
SAES-L-610SAES-L-610 Nonmetallic Piping in Oily Water Services
This Standard SAES-L-610 specifically focuses on the design, installation, and testing of nonmetallic piping in oily water services. It provides additional requirements and limitations that are not fully addressed in the ASME B31 Series, which is the Code for Pressure Piping.
The purpose of this Standard is to establish guidelines and criteria for safely using nonmetallic piping materials in applications involving the transportation of oily water. It ensures that the design and installation of such piping systems meet the necessary standards and requirements to maintain the integrity and reliability of the overall infrastructure.
By supplementing the ASME B31 Series, this Standard addresses the unique considerations and challenges associated with nonmetallic piping in oily water services. It provides detailed specifications and guidelines for the selection of appropriate nonmetallic materials, design criteria, installation techniques, and testing procedures.
Nonmetallic Piping in Oily Water Services Design
Continuing with the design requirements for nonmetallic piping in oily water services:
The allowable pressure/temperature ratings for RTR (Reinforced Thermosetting Resin) piping should conform to the specifications outlined in 01-SAMSS-029 and 01-SAMSS-034.
Threaded flanges should not be used in nonmetallic piping systems.
Lap joint flanges may be used if one-piece construction flanges are not available in the industry at the specified nominal pipe sizes. Prior approval from the Chairman of Plumbing and Utilities Standards is required for the use of lap joint flanges.
For RTR piping systems, pre-qualified jointing procedures and methods as per 01-SAMSS-034 should be utilized.
Threaded joints and unions can be used for thermoplastic piping, except for PVC pipes (refer to UPC Section 606.2.2). This is applicable for nominal pipe sizes ranging from 15 mm to 50 mm, provided they are factory-made. Prior approval from the Chairman of Plumbing and Utilities Standards Committee is required for the use of factory-made threaded joints and unions for larger nominal pipe sizes and alternative material types.
Threaded joints and unions can be used for thermoplastic piping, except for PVC pipes (refer to UPC Section 606.2.2). This is applicable for nominal pipe sizes ranging from 15 mm to 50 mm, provided they are factory-made. Prior approval from the Chairman of Plumbing and Utilities Standards Committee is required for the use of factory-made threaded joints and unions for larger nominal pipe sizes and alternative material types.
Branch connections to threaded metallic piping can only be used for RTR pipes up to and including 75 mm nominal pipe size, provided they are factory-made.
The flexibility requirements for nonmetallic piping systems are as follows: a) Flexibility, support, and anchoring requirements should comply with ASME B31.3 Chapter VII. This requirement is also applicable to off-plot applications. b) If flexibility is required, it should be provided through the use of bends, loops, offsets, bellows, expansion joints, and slip joints. c) Cold spring is not permitted in nonmetallic piping systems.
Additional requirements for nonmetallic piping in oily water services are as follows:
Flanged joints should meet the following specifications:
- a) Flanged joints in nonmetallic piping systems should use flat face flanges and full-faced elastomeric gaskets.
- b) Flanges should have a pressure rating equal to or greater than the pressure rating of the nonmetallic piping.
- c) Bolt tightening procedures and maximum torque for bolting nonmetallic flanges should comply with ASTM D4024.
- d) Washers should be used for bolting nonmetallic flanges.
The transition from nonmetallic to metallic piping should be done in a way that the weight of the metallic piping is not transferred to the nonmetallic piping. PVC female threaded fittings are not allowed as per UPC Section 6.2.2. Flexibility requirements should be separately considered for both piping materials. Check following related article of SAES-L-610 PDF Download.
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Transition from nonmetallic to metallic piping in firewater and oily water sewer services should be carried out underground or in a buried valve box.
In pressurized systems, connections to metal valves larger than 50 mm nominal pipe size should be made using flanges.
Nonburied metal valves, including those in buried valve boxes, should be supported independently of nonmetallic piping. In buried conditions, metal valves with a size of 4 inches and larger should be supported independently of nonmetallic piping.
Nonmetallic pipes should pass through a metallic sleeve in a valve box wall. Alternatively, a nonmetallic sleeve may be used if it possesses mechanical characteristics and properties similar to those of the pipe. The space between the pipe and sleeve should be sealed with an approved flexible waterproof mastic sealant.
The distance between the valve box wall and the back of the nonmetallic flange inside the valve box should be at least 150 mm to allow for work access.
Nonmetallic piping used in water systems covered by SAES-S-040 should comply with the requirements specified in SAES-S-040 for aboveground applications. Nonmetallic piping should not be used aboveground outside buildings for firewater and fire extinguishing systems, nor for firewater services on offshore structures. Refer to SAES-S-050 for nonmetallic piping in firewater systems inside buildings and SAES-B-017 for firewater system design.
Additionally:
- Nonmetallic piping joints should be free from concrete anchor blocks.
- Thrust block requirements for nonmetallic pipes should comply with SAES-S-070.
- Refer to SAES-L-132 for requirements and limitations regarding chemical, mechanical, and dimensional properties, including maximum allowable flow velocities in nonmetallic piping systems.
FAQs About SAES-L-610 PDF Download
Q1: What is the scope of SAES-L-610?
A1: SAES-L-610 covers the design, installation, and testing of nonmetallic piping specifically for oily water services.
Q2: Which piping code does SAES-L-610 supplement?
A2: SAES-L-610 supplements the requirements of the ASME B31 Series, which is the Code for Pressure Piping.
Q3: What types of nonmetallic piping are covered by SAES-L-610?
A3: SAES-L-610 covers the requirements and limitations for nonmetallic piping used in oily water services. This may include materials such as thermoplastics, reinforced thermosetting resins (RTR), and other nonmetallic materials suitable for the application.
Q4: What are the design considerations for nonmetallic piping in oily water services?
A4: Design considerations include allowable pressure/temperature ratings, jointing procedures, flange types, branch connections, flexibility requirements, and support and anchoring requirements.
Q5: Can threaded flanges be used in nonmetallic piping systems according to SAES-L-610?
A5: No, threaded flanges are not allowed in nonmetallic piping systems as per SAES-L-610. However, there may be exceptions for thermoplastic piping in certain sizes, as mentioned in the standard.
Q6: Are there any restrictions on the use of PVC pipes in oily water services?
A6: Yes, according to UPC Section 606.2.2, PVC pipes cannot be used with threaded joints or unions in nonmetallic piping systems. Other materials may be permitted for threaded joints and unions, subject to approval from the Chairman of Plumbing and Utilities Standards Committee.
Q7: What are the flexibility requirements for nonmetallic piping in oily water services?
A7: Flexibility requirements for nonmetallic piping include compliance with ASME B31.3 Chapter VII, which covers flexibility, support, anchoring, and the use of bends, loops, offsets, bellows, expansion joints, and slip joints for accommodating thermal expansion, vibration, and movement. Cold spring is not permitted in nonmetallic piping systems.