Malleable iron 90° Reducing Elbow Fig 90R A197 NPT ASTM

Malleable iron 90° Reducing Elbow Fig 90R A197 NPT ASTM

Product Overview

This malleable iron 90° reducing Elbow Fig 90R A197 NPT is manufactured in accordance with ASTM standards. It is used for 90° direction change and diameter reduction in piping systems with smooth flow transition and low flow resistance. Made of high-quality black heart malleable iron with high-temperature annealing, it features good toughness, high strength and impact resistance. With high-precision threads for tight connection and reliable sealing, it is available in black, electro-galvanized or hot-dip galvanized finish with strong corrosion resistance. Easy to install, it is widely used in water, gas, steam, fire protection and various industrial low-pressure fluid piping systems.

certificate

Product details

Malleable iron 90° Reducing elbow ASTM A197 NPT Drawing

Product Features (Specifications – Plain English List)

  • Standard: ASTM A197
  • Type: 90° Reducing Elbow Fig 90R 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) B(MM)
1/4”X1/8” DN8XDN6 18.8 19.3
3/8”X1/8” DN10XDN6 20.5 21.6
3/8”X1/4” DN10XDN8 22.4 22.9
1/2”X1/4” DN15XDN8 24.6 24.9
1/2”X3/8” DN15XDN10 26.4 26.2
3/4”X1/4” DN20XDN8 26.7 27.4
3/4”X3/8” DN20XDN10 28.5 28.7
3/4”X1/2” DN20XDN15 30.5 31
1”X1/4” DN25XDN8 27 31
1”X3/8” DN25XDN10 30 32.3
1”X1/2” DN25XDN15 32 35.5
1”X3/4” DN25XDN20 34.8 36.8
1-1/4”X3/8” DN32XDN10 32 36.5
1-1/4”X1/2” DN32XDN15 34 38.9
1-1/4”X3/4” DN32XDN20 36.8 41.2
1-1/4”X1” DN32XDN25 40.1 42.4
1-1/2”X1/2” DN40XDN15 35 41.5
1-1/2”X3/4” DN40XDN20 38.6 44.5
1-1/2”X1” DN40XDN25 41.9 45.7
1-1/2”X1-1/4” DN40XDN32 46.2 47.8
2”X1/2” DN50XDN15 37.5 47.5
2”X3/4” DN50XDN20 40.6 50
2”X1” DN50XDN25 43.9 51.3
2”X1-1/4” DN50XDN32 48.3 53.3
2”X1-1/2” DN50XDN40 51.3 54.9
2-1/2”X3/4” DN65XDN20 42 57
2-1/2”X1” DN65XDN25 46 58.7
2-1/2”X1-1/4” DN65XDN32 50.5 60
2-1/2”X1-1/2” DN65XDN40 54.9 63.8
2-1/2”X2” DN65XDN50 60.7 66
3”X3/4” DN80XDN20 45 65
3”X1” DN80XDN25 50 67.5
3”X1-1/4” DN80XDN32 55 70
3”X1-1/2” DN80XDN40 58 72
3”X2” DN80XDN50 64 73.4

Class 300 Type

SIZE A (MM) B(MM)
1/2”X3/8” DN15XDN10 30.2 30.2
1”X3/4” DN25XDN20 38.1 39.6
!-1/4”X1/2” DN32XDN15 36.5 42

Product Applications

Application

  • Fire Protection Systems: Reducing and turning connection for sprinkler networks
  • Water Supply & Drainage: Reducing turning for cold and hot water pipelines in buildings
  • HVAC & Heating: Reducing transition for boilers and radiator systems
  • Industrial Pipelines: Diameter reduction for compressed air and low-pressure steam pipelines
  • Gas Engineering: Turning connection for gas pipelines of different sizes
  • Marine & Mining: Reducing turning for general low-pressure fluid pipelines

Installation and Maintenance 

Installation

  1. Inspect the Elbow Fig 90R 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 90° equal Elbow Fig 90R A197 NPT
  • Malleable iron 45° Elbow Fig 90R A197 NPT, 45° reducing Elbow Fig 90R A197 NPT
  • Malleable iron equal tee, reducing tee
  • Malleable iron union, M&F union
  • Socket, reducing socket, plug
  • 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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