Send a part number, a photo, or a whole BOM — we supply it and stand behind it. EXW Singapore — collect from our office.

3G Electric
CAMPBELL Lead-Free Bronze Poppet Check Valve, 1 1/2 in, FNPT x FNPT - Lead-Free Bronze Poppet Check Valves
CAMPBELLLead-Free Bronze Poppet Check Valves

CAMPBELL Lead-Free Bronze Poppet Check Valve, 1 1/2 in, FNPT x FNPT

The CAMPBELL Spring Check Valve: Poppet is a lead-free bronze inline check valve with a 1 1/2 in pipe size, featuring FNPT x FNPT connections and NPT threads (MPN 4033E). This valve is designed to prevent backflow in…

SKU 3G-OTH-428590

Also listed as: 4033 E · 4033-E

Brand
CAMPBELL
Item
Lead-Free Bronze Poppet Check Valve, 1 1/2 in, FNPT x FNPT
Part Number
4033E
Category
Lead-Free Bronze Poppet Check Valves
Available to Order
Also known as:4033ECAMPBELL
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.
EXW Singapore
Collect or forward from our office
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

CAMPBELL
Manufacturer Part Number
4033E
Type
Inline Valve Body, FNPT x FNPT, Bronze, NPT
Pipe Size
1 1/2 in

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

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

Product Description

The CAMPBELL Spring Check Valve: Poppet is a lead-free bronze inline check valve with a 1 1/2 in pipe size, featuring FNPT x FNPT connections and NPT threads (MPN 4033E). This valve is designed to prevent backflow in industrial piping systems, supporting applications across 14 departments including plumbing, pumps, and controls.

Frequently Asked Questions

What is a CAMPBELL Spring Check Valve used for?

A CAMPBELL Spring Check Valve is used to prevent backflow in piping systems. Its poppet design allows flow in one direction and automatically closes when flow reverses, protecting pumps and equipment in water, HVAC, and industrial applications.

What are the specifications of the CAMPBELL 4033E check valve?

The CAMPBELL 4033E is a lead-free bronze poppet check valve with an inline valve body. It has 1 1/2 in FNPT x FNPT connections and NPT threads. The spring-loaded poppet ensures reliable sealing and low-pressure drop in horizontal or vertical installations.

Where to buy CAMPBELL check valves worldwide?

You can source CAMPBELL check valves worldwide through 3G Electric. As a global industrial distributor, 3G Electric handles full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on the 4033E model.

How to install a CAMPBELL spring check valve?

Install the CAMPBELL check valve in the correct flow direction as indicated by the arrow on the body. Use pipe thread sealant on the FNPT connections and tighten to standard torque. Ensure the valve is accessible for inspection and that the spring mechanism moves freely before commissioning.

Used in

Common applications for CAMPBELL
Industrial maintenance — Campbell S-hook MPN 6108024 for light-duty hanging and suspending of tools or components.
Construction rigging — Campbell Grade 70 slip hook MPN T9504415 with latch for load securement and lifting.
Overhead lifting — Campbell Grade 100 connecting link MPN 5779225 for joining 9/32 in chain in lifting assemblies.
Material handling — Campbell Grade 43 slip hook MPN T9401424 for general purpose lifting and quick connect/disconnect.
Towing and load securement — Campbell Grade 70 slip hook MPN T9504515 with 6,600 lb WLL for heavy-duty applications.
Agricultural equipment — Campbell connecting link MPN 5779245 for repairing or joining 1/2 in chain on implements.
Not sure this is the right part? Photo-identify it→

CAMPBELL Products

3G Electric supplies CAMPBELL lead-free bronze poppet check valves. 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 →

More from CAMPBELL

View all CAMPBELL parts →

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first