Name: USA LAB KF25 90 Degrees
Brand: USA Lab
SKU: KF2590
Price: 25.0 USD
Availability: InStock

Description

USA LAB KF25 90 Degrees

The USA LAB KF25 90 Degrees Elbow is an ISO-KF vacuum fitting designed for building reliable foreline vacuum plumbing and process systems. With a flange size of NW-25, this 90-degree elbow provides a practical way to route vacuum connections while maintaining a compact system layout.

The USA LAB KF25 90 Degrees Elbow is constructed from corrosion-resistant stainless steel for use in laboratory vacuum and process applications. Its 90-degree configuration helps redirect vacuum plumbing where a change in line direction is required.

Following ISO-KF standards and using an NW-25 flange size, the USA LAB KF25 90 Degrees Elbow is suitable for assembling foreline vacuum plumbing, laboratory vacuum equipment, and process systems requiring compatible KF-25 connections.

KF-25 NW-25 Flange 90° Elbow ISO-KF Standard Stainless Steel

90° Configuration: redirects vacuum plumbing to support practical system routing and installation.

NW-25 Flange Size: designed for KF-25 / NW-25 vacuum plumbing connections.

Corrosion-Resistant Stainless Steel: supports use in laboratory vacuum and process systems.

Why buy from USA Lab

Expert Support
Engineers & technicians on staff.

Quality First
Tested and trusted products.

Fast Fulfillment
Nationwide 1-2 day shipping.

Warranty & Parts
US-based service & spares.

Why this USA LAB KF25 90 Degrees Elbow?

90-degree elbow configuration — provides a practical change in direction for vacuum plumbing and process systems.
KF-25 / NW-25 flange size — designed around the specified ISO-KF flange standard and NW-25 sizing.
Corrosion-resistant stainless steel — supports use in laboratory and process environments where durable stainless steel fittings are required.
Foreline vacuum plumbing — commonly used to build foreline vacuum plumbing and process systems.
Compact system routing — the 90-degree configuration helps route connections where straight fittings are not suitable.

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Technical Specifications

Specification	Details
Product Name	USA LAB KF25 90 Degrees
Product Type	KF-25 90 Degree Elbow Vacuum Fitting
Brand	USA Lab
Flange Standard	ISO-KF
Flange Size	NW-25
KF Size	KF-25
Fitting Configuration	90° Elbow
Fitting Type	Vacuum Elbow Fitting
Material	Stainless Steel
Material Characteristic	Corrosion Resistant
Connection Type	KF Flange
Connection Size	KF-25 / NW-25
Bend Angle	90°
Application	Foreline Vacuum Plumbing
System Use	Vacuum and Process Systems
Equipment Use	Laboratory Vacuum Equipment
Routing Function	90-Degree Line Direction Change
Product Category	ISO-KF Vacuum Fitting
Support	Technical Support Available by Email or Phone

Popular Industries & Use Cases

Laboratory Research Pharmaceutical Processing Chemical Processing Vacuum Systems

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FAQ

What is the flange size of the USA LAB KF25 90 Degrees?

The USA LAB KF25 90 Degrees uses an ISO-KF flange size of NW-25 and is designed for KF-25 vacuum plumbing connections.

What type of fitting is the USA LAB KF25 90 Degrees?

The USA LAB KF25 90 Degrees is a 90-degree elbow vacuum fitting designed to redirect vacuum plumbing and process system connections.

What material is the USA LAB KF25 90 Degrees made from?

The USA LAB KF25 90 Degrees is made from corrosion-resistant stainless steel for laboratory vacuum plumbing and process system applications.

Where is the USA LAB KF25 90 Degrees commonly used?

The USA LAB KF25 90 Degrees is commonly used to build foreline vacuum plumbing, laboratory vacuum systems, and process systems requiring an NW-25 / KF-25 90-degree connection.

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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Specifications

Model:	KF2590
Brand:	USA Lab

Warranty

Fittings and steel do NOT carry any warranty. Fittings and steel items with a defect or other issue must be identified within 30 days of arrival and USA Lab MUST be contacted. After 30 days, there will be no replacements sent for fittings or steel items with a defect or issue. Cross threading, misuse, improper storage, or improper care of fittings/steel are considered user error and are not covered under warranty.

Shipping & Returns

1–3 Business Days Standard Processing

Return Policy ↗ Varies by Product Warranty Policy ↗ Varies by Product

3 Days to Claim Inspect on Arrival

Shipping

Orders ship within 1–3 business days after payment clears. We ship Monday through Friday via UPS, USPS, and freight carriers.
Freight items (crated, hazmat, dropship, or special packaging) can take 1–5 business days to ship.
Expedited shipping speeds up transit, not processing. Contact us for true rush orders.
PO Box addresses ship USPS. Alcohols, chemicals, and hazmat cannot ship to a PO Box.

Full Shipping Policy

Delivery & Damage Claims

Inspect every shipment on arrival. Claims must be filed within 3 business days.
Visible damage? Refuse the delivery and have the driver document it. We will file the claim and ship a replacement.
Concealed damage: contact us within 2 days with photos of the packaging and item. Keep all packing materials.
Freight services (liftgate, residential, inside delivery) are the customer's responsibility to select for their location.

Damage & Freight Details

Returns

USA Lab branded products are returnable within 30 days of order date with prior authorization. Email us before sending anything back.
Solvents, chemicals, and consumables are not returnable once shipped. Custom and made-to-order items are final sale.
Unused items in original packaging carry a 15% restocking fee. Defective items ship back on us.
Items showing any signs of use, wear, contamination, or modification are not eligible for return.
Glassware damage must be reported within 3 business days of delivery for replacement or refund.

Full Return Policy

Custom & Made-to-Order Items

Customized and made-to-order products are final sale and not eligible for return under any circumstances.
This includes ductless fume hoods, configured tanks and reactors, and any item built to your specifications.
These products are manufactured specifically for your application. Confirm sizing, voltage, and configuration with our team before ordering.
Damage claim coverage still applies. Inspect on arrival and report issues within 3 business days.

Return Eligibility Details

Warranty

USA Lab products are covered against manufacturing defects for up to 3 years, depending on product line.
1 year: chillers, heaters, rotovaps, reactors, vacuum ovens, mixers, and most equipment. 2 years: UVP vacuum pumps. 3 years: scientific freeze dryers.
Wear items (glassware, gaskets, heating elements, sensors) and fittings/steel are not covered. Report defects within 30 days (3 days for glass).
Non–USA Lab brands are covered by their manufacturer's warranty. See the product's Warranty tab.

Full Warranty Policy

International Orders

Import duties, taxes, VAT, and brokerage fees are not collected by USA Lab and are the receiver's responsibility.
Verify your country's customs charges and import restrictions before ordering.
Refused or unclaimed international shipments are refunded minus shipping and a 15% restocking fee.
International orders are generally non-returnable. Damaged items must be reported within 3 business days.

International Guidelines

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Summaries above are provided for convenience. The full Policies & Warranty Info pages govern all orders and may be updated at any time.

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USA LAB KF25 90 Degrees

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