We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
OEM APPROVED VENDOR 4 in Carbon Steel Lap Joint Flange, Class 300, 740 psi - Lap Joint Steel Pipe Flanges
OEMLap Joint Steel Pipe Flanges

OEM APPROVED VENDOR 4 in Carbon Steel Lap Joint Flange, Class 300, 740 psi

The APPROVED VENDOR Metal Pipe Flange is a 4-inch Carbon Steel Lap Joint Flange, Class 300 (MPN 351-040-000), rated for a maximum operating pressure of 740 psi. This flange is designed for use in piping systems…

SKU 3G-OTH-479291

Also listed as: 351040000 · 351 040 000

Brand
OEM
Item
APPROVED VENDOR 4 in Carbon Steel Lap Joint Flange, Class 300, 740 psi
Part Number
351-040-000
Category
Lap Joint Steel Pipe Flanges
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

OEM
Manufacturer Part Number
351-040-000
Type
Carbon Steel, Lap Joint Flange, Class 300
Maximum Operating Pressure
740 psi

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

OEM Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The APPROVED VENDOR Metal Pipe Flange is a 4-inch Carbon Steel Lap Joint Flange, Class 300 (MPN 351-040-000), rated for a maximum operating pressure of 740 psi. This flange is designed for use in piping systems requiring a loose, rotating companion flange for alignment flexibility.

Frequently Asked Questions

What is an APPROVED VENDOR 4 in lap joint flange used for?

This 4-inch carbon steel lap joint flange, Class 300, is used in piping systems where alignment flexibility is needed. It allows the flange to rotate freely around the pipe, simplifying bolt-hole alignment during installation. Common in industrial process lines, it supports pressures up to 740 psi.

What are the specifications of the APPROVED VENDOR 351-040-000 flange?

The APPROVED VENDOR 351-040-000 is a 4-inch carbon steel lap joint flange, Class 300, with a maximum operating pressure of 740 psi. It is designed for loose, rotating companion flange applications, providing alignment flexibility in piping systems.

Where to buy APPROVED VENDOR pipe flanges worldwide?

3G Electric supplies the APPROVED VENDOR 351-040-000 lap joint flange to customers worldwide. We handle full logistics, customs clearance, and delivery for global orders. Contact us for availability and lead time on this and other industrial flanges across 14 departments.

How to install a lap joint flange like the APPROVED VENDOR 351-040-000?

Installation involves sliding the loose flange over the pipe stub end, then aligning bolt holes with the mating flange. Use proper gaskets and torque bolts evenly to the recommended specification for Class 300. Always follow ASME B31.3 or applicable piping code for safe assembly.

Not sure this is the right part? Photo-identify it

OEM Products

3G Electric supplies OEM lap joint steel pipe flanges. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first