Malleable iron hexagon Cap Fig 301 A197 NPT ASTM

Product Features (Specifications – Plain English List)

• Standard: ASTM A197(Material), ASME B16.3 (Dimension), ANSI B1.20.1 (Thread)
• Type: Hexagon Cap Fig 301 A197 NPT (Female Thread)
• Material: Black Heart Malleable Iron
• Pressure Class: 150LB / 300LB (Class 150 / 300)
• Temperature Range: -20℃ ~ 230℃
• Thread Standard: NPT(Standard), Optional BSPT (Rc)/BSPP
• Surface Treatment: Black / Electro-galvanized / Hot-dip Galvanized
• Size Range: 1/4″–2″ (DN8–DN50, Standard Range)
• Applicable Media: Water, hot water, oil, natural gas, LPG, compressed air, fire water, low-pressure steam

Specifications Table (Dimensions & Parameters)

 Product Applications

• Water Supply & Drainage: Closing ends of building risers and branches, temporary plug for pressure test
• Gas Systems: Sealing ends of household branches and pre/post-meter pipes
• Fire Protection Networks: Closing ends and inspection ports of sprinkler and hydrant systems
• HVAC: Sealing ends of boiler, radiator and fan coil pipelines
• Industrial Pipelines: Sealing ends of compressed air, low-pressure steam and lubricating oil pipelines
• Marine & Mining: Closing ends/blind ends of general low-pressure fluid pipelines

Installation and Maintenance

1. Inspect the hexagon Cap Fig 301 A197 NPT before 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 round Cap Fig 301 A197 NPT
• Malleable iron plain plug
• Malleable iron entire thread socket
• Malleable iron reducing socket
• Malleable iron equal tee
• Malleable iron reducing tee
• Malleable iron 90° elbow
• Full range of ASTM 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]