Malleable iron 90° Elbow Fig 90 A197 NPT ASTM

Malleable iron 90° Elbow Fig 90 A197 NPT ASTM

 Product Overview

This malleable iron 90° Elbow Fig 90 A197 NPT is manufactured in strict accordance with ASTM standards. It is used for 90° direction change in piping systems with smooth flow passage and low pressure loss. Made of high-quality black heart malleable iron with annealing treatment, it features excellent mechanical properties, high toughness, impact resistance and non-cracking. With high-precision threads for tight connection and reliable sealing, it is available in black, electro-galvanized or hot-dip galvanized finish. Corrosion-resistant and easy to install, it is widely used in water, gas, steam, fire protection and various industrial low-pressure fluid piping systems.

certificate

Product details

BMI elbow NPT

Product Features (Specifications – Plain English List)

  • Standard: ASTM A197
  • Type: 90° Elbow Fig 90 A197 NPT
  • Material: Black Heart Malleable Iron
  • Working Pressure: 150LB / 300LB
  • Temperature Range: -20℃ ~ 230℃
  • Thread Standard: NPT / BSP
  • Surface Treatment: Black / Electro-galvanized / Hot-dip Galvanized
  • Applicable Media: Water, hot water, oil, gas, compressed air, fire water, low-pressure steam

Specifications Table (Dimensions & Parameters)

Class 150 Type

SIZE A (MM)
1/8″ DN6 17.5
1/4” DN8 20.6
3/8” DN10 24.1
1/2” DN15 28.5
3/4” DN20 33.3
1” DN25 38.1
1 1/4” DN32 44.5
1 1/2” DN40 49.3
2” DN50 57.2
2 1/2” DN65 68.6
3” DN80 78.2
4” DN100 96.3
5” DN125 114.3
6” DN150 130.3
8” DN200 162

Class 300 Type

SIZE A (MM)
1/4” DN8 23.9
3/8” DN10 26.9
1/2” DN15 31.8
3/4” DN20 35.6
1” DN25 41.4
1 1/4” DN32 49.3
1 1/2” DN40 54.1
2” DN50 63.5
2 1/2” DN65 74.7
3” DN80 85.9
4” DN100 114

Product Applications

  • Fire Protection Systems: Direction connection for sprinkler networks and fire hydrant pipelines
  • Water Supply & Drainage: 90° turning for cold and hot water pipelines in civil and commercial buildings
  • HVAC & Heating: 90° transition for boilers, radiators and circulation pipelines
  • Industrial Pipelines: Compressed air, lubricating oil and low-pressure steam pipelines
  • Gas Engineering: Turning connection for municipal and factory gas pipelines
  • Marine & Mining: General low-pressure fluid transmission pipeline systems

Installation and Maintenance

  Installation

  1. Inspect the Elbow Fig 90 A197 NPTbefore installation to ensure no sand holes, cracks, deformation and intact threads
  2. Clean iron chips, dust and debris at pipe ends to keep connecting surfaces clean
  3. Wind PTFE tape clockwise or apply pipe thread sealant on male threads
  4. After hand-tightening, use a pipe wrench to tighten evenly to avoid cracking due to excessive force
  5. Pressure test after installation; put into use only after confirming no leakage and looseness

  Maintenance

  1. Regularly check joints for leakage, thread looseness and surface corrosion
  2. Paint anti-rust paint regularly for outdoor or humid environments to extend service life
  3. Replace immediately in case of cracks, deformation, leakage or serious corrosion

Related Products

  • Malleable iron 45° Elbow Fig 90 A197 NPT
  • Malleable iron equal tee, reducing tee
  • Malleable iron union, M&F union
  • Street Elbow Fig 90 A197 NPT, socket, plug
  • Malleable iron cross, union Elbow Fig 90 A197 NPT
  • Full range of ASTM standard malleable iron pipe fittings

FAQ

  • Can you supply OEM?

OEM is available. We can customize the product according to your specific requirements, including logo printing and packaging design.

  • What’s the MOQ?

The MOQ is 500 pieces. For customized products with special sizes or surface treatments, the MOQ may vary.

  • How about the order processing and lead time?

After order confirmation and receipt of the advance payment, we will arrange production. Generally, the products can be ready for shipment within 15-20 working days. Once dispatched, we will notify you and provide all necessary documents for customs clearance.

  • What quality will be ensured?

All products are 100% new and undergo strict quality inspections, including pressure testing and dimensional checks, before delivery. We use sturdy wooden crates or cartons to ensure the products are well-protected during transportation.

  • Can you guide the installation?

Yes, we provide detailed installation instructions in English and other major languages. Our technical support team is also available for online consultation and guidance if needed.

Contact Information

Sales Inquiry:

Provide contact information for sales inquiries.

Email: [email protected]

Phone: +86 13012223295

Technical Support:

If you have any questions regarding product installation, commissioning, operation or maintenance, please contact our technical support team for professional assistance:

Email: [email protected]

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