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Description
USA Lab KF to Female NPT Adapters – KF16, KF25 & KF40 with 1/4", 3/8", 1/2" Ports
USA Lab KF to Female NPT Adapters provide a quick, reliable way to connect KF (NW) vacuum flanges to standard Female NPT threads. Available in KF16, KF25, and KF40 bodies with 1/4", 3/8", or 1/2" NPT options, these adapters simplify transitions between vacuum hardware and process plumbing.
Precision-machined from corrosion-resistant SS304 stainless steel, each fitting offers smooth sealing faces and clean internal passages for dependable performance. Ideal for adapting to or from KF systems and Male NPT piping across laboratory, pilot, and industrial applications.
Choose the correct KF size for your flange and the appropriate NPT size for your line connection to ensure a secure, leak-tight fit with standard KF clamps and centering rings.
SS304 Stainless KF16 / KF25 / KF40 NPT: 1/4", 3/8", 1/2" Leak-Tight KF Seal
Fast adaptation: Bridge KF vacuum flanges to standard NPT piping in seconds.
Durable build: SS304 stainless steel with smooth faces for reliable sealing.
Broad compatibility: Works with standard KF clamps and centering rings.
Why buy from USA Lab
Expert Support
Engineers & technicians on staff.
Engineers & technicians on staff.
Quality First
Tested and trusted products.
Tested and trusted products.
Fast Fulfillment
Nationwide 1-2 day shipping.
Nationwide 1-2 day shipping.
Warranty & Parts
US-based service & spares.
US-based service & spares.
Resources & Downloads
Why these KF to Female NPT adapters?
- Versatile range: Bodies in KF16, KF25, KF40 with 1/4", 3/8", or 1/2" Female NPT ports.
- Precision fit: Accurate dimensions for repeatable, leak-tight KF sealing.
- SS304 construction: Corrosion-resistant and easy to clean for long service life.
- System friendly: Adapt to or from KF hardware and Male NPT lines effortlessly.
- USA Lab quality: Trusted hardware for laboratory, pilot, and industrial vacuum systems.
Talk to an expert
Not sure which combo you need? We’ll help match KF size and NPT thread for your setup.
Technical Specifications
| Parameter | USA Lab KF to Female NPT Adapters |
|---|---|
| KF Body Sizes | KF16, KF25, KF40 (NW standard) |
| Female NPT Options | 1/4" NPT, 3/8" NPT, 1/2" NPT |
| Material | SS304 (304 Stainless Steel) |
| Finish | Smooth sealing faces; clean internal passages |
| KF Compatibility | Works with standard KF clamps & centering rings |
| Typical Use | Adapt to/from KF vacuum hardware and Male NPT process lines |
| Notes | Select centering ring size to match each KF flange |
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Tailored tanks, skids, and integration help.
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We’ll help spec the right system for your throughput.
FAQ
What sizes are offered for the USA Lab KF to Female NPT Adapters?
USA Lab KF to Female NPT Adapters – KF16, KF25 & KF40 with 1/4", 3/8", 1/2" Ports come in KF16, KF25, and KF40 bodies with Female NPT threads in 1/4", 3/8", and 1/2".
Are these adapters compatible with standard KF hardware?
Yes. The USA Lab KF to Female NPT Adapters – KF16, KF25 & KF40 with 1/4", 3/8", 1/2" Ports work with standard KF clamps and centering rings for secure, leak-tight connections.
What material are the adapters made from?
They are precision-machined from SS304 stainless steel for corrosion resistance and long service life.
Can these adapt to or from Male NPT connections?
Yes. These fittings are great to adapt to or from KF (NW) vacuum flanges and Male NPT connections in your process line.
Important Shipping Notice!
DISCLAIMER:
All items are carefully packaged to ensure safe delivery. In the rare event that your item arrives damaged, please notify us within 3 days of receipt. We will promptly provide a replacement or issue a refund.
Please note that any damage occurring after delivery is not covered under warranty. We appreciate your understanding and your trust in our products.
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