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

CONRADER Check Valve: In Tank, Brass, 3/8 in (F)NPT, 1/2 in (M)NPT - Pneumatics
CONRADERPneumatics

CONRADER Check Valve: In Tank, Brass, 3/8 in (F)NPT, 1/2 in (M)NPT

The CONRADER Check Valve: In Tank is a pneumatics component constructed from brass, featuring a 3/8 in (F)NPT inlet and a 1/2 in (M)NPT outlet. It is rated for a maximum pressure of 500 psi, as specified by the…

SKU 3G-OTH-156642

Also listed as: CTB 3812 · CTB-3812

Brand
CONRADER
Item
Check Valve: In Tank, Brass, 3/8 in
Category
Pneumatics
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

CONRADER
Manufacturer Part Number
CTB3812
Type
Brass, 3/8 in (F)NPT, 1/2 in (M)NPT
Max. Pressure
500 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

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

Product Description

The CONRADER Check Valve: In Tank is a pneumatics component constructed from brass, featuring a 3/8 in (F)NPT inlet and a 1/2 in (M)NPT outlet. It is rated for a maximum pressure of 500 psi, as specified by the manufacturer (MPN CTB3812).

Frequently Asked Questions

What is the CONRADER Check Valve CTB3812 used for?

The CONRADER Check Valve CTB3812 is used in pneumatic systems to allow flow in one direction and prevent backflow. It is commonly installed in tanks or air receiver applications where maintaining pressure and preventing reverse flow is critical for system integrity and safety.

What are the specifications of the CONRADER Check Valve CTB3812?

The CONRADER Check Valve CTB3812 is a brass in-tank check valve with a 3/8 in (F)NPT inlet and a 1/2 in (M)NPT outlet. It is rated for a maximum pressure of 500 psi. The manufacturer part number is CTB3812, and it is designed for pneumatic applications.

Where to buy the CONRADER Check Valve CTB3812 worldwide?

You can source the CONRADER Check Valve CTB3812 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this pneumatic component.

How to install a CONRADER in-tank check valve?

Install the CONRADER check valve by threading the 1/2 in (M)NPT outlet into the tank port and connecting the 3/8 in (F)NPT inlet to the supply line. Apply thread sealant to NPT threads and tighten to manufacturer torque specs. Ensure flow direction matches the arrow on the valve body.

Used in

Common applications for CONRADER
Air compressor systems — Conrader SRV250 soft seat safety valves for overpressure protection on receiver tanks
Pneumatic tool circuits — Conrader GV2 check valves to prevent backflow in air line lubrication systems
Industrial process control — Conrader SRH375 hard seat safety valves for high-pressure gas manifolds
Mobile equipment hydraulics — Conrader SRV390 soft seat safety valves for pressure relief on pneumatic actuators
Compressed air distribution — Conrader SRH250 hard seat safety valves for branch line protection in plant air systems

CONRADER Products

3G Electric supplies CONRADER pneumatics. 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

Compatible alternatives & equivalents

Cross-referenced by specification & description
CONRADER Check Valve: In Tank, Brass, 3/4 in (F)NPT, 3/4 in (M)NPT, 500 psi Max. Pressure (MPN CTB3434)
CONRADER
CONRADER Check Valve: In Tank, Brass, 3/4 in (F)NPT, 3/4 in (M)NPT, 500 psi Max. Pressure (MPN CTB3434)
CONRADER Check Valve: In Tank, Brass, 3/4 in (F)NPT, 1 in (M)NPT, 500 psi Max. Pressure (MPN CTB341)
CONRADER
CONRADER Check Valve: In Tank, Brass, 3/4 in (F)NPT, 1 in (M)NPT, 500 psi Max. Pressure (MPN CTB341)
CONRADER Check Valve: In Tank, Brass, 3/4 in Compression, 1/2 in (M)NPT, 500 psi Max. Pressure (MPN CTD3412)
CONRADER
CONRADER Check Valve: In Tank, Brass, 3/4 in Compression, 1/2 in (M)NPT, 500 psi Max. Pressure (MPN CTD3412)
CONRADER Check Valve: In Tank, Brass, 3/4 in Compression, 3/4 in (M)NPT, 500 psi Max. Pressure (MPN CTD3434)
CONRADER
CONRADER Check Valve: In Tank, Brass, 3/4 in Compression, 3/4 in (M)NPT, 500 psi Max. Pressure (MPN CTD3434)
CONRADER Check Valve: In Tank, Brass, 1 1/4 in (F)NPT, 1 1/4 in (M)NPT, 500 psi Max. Pressure (MPN CTB114114)
CONRADER
CONRADER Check Valve: In Tank, Brass, 1 1/4 in (F)NPT, 1 1/4 in (M)NPT, 500 psi Max. Pressure (MPN CTB114114)
CONRADER Check Valve: In Line, Brass, 3/8 in (F)NPT, 3/8 in (F)NPT, 250 psi Max. Pressure (MPN GV38)
CONRADER
CONRADER Check Valve: In Line, Brass, 3/8 in (F)NPT, 3/8 in (F)NPT, 250 psi Max. Pressure (MPN GV38)

More from CONRADER

View all CONRADER parts
CONRADER Check Valve: In Line, Brass, 1 in (F)NPT, 1 in (F)NPT, 500 psi Max. Pressure (MPN CLB1)
CONRADER
CONRADER Check Valve: In Line, Brass, 1 in (F)NPT, 1 in (F)NPT, 500 psi Max. Pressure (MPN CLB1)
CONRADER Tank Manifold: Carry Tank, 150 psi Factory Set Pressure, 20 cfm @ 150 psi, -65°F to 450°F (MPN CTM125)
CONRADER
CONRADER Tank Manifold: Carry Tank, 150 psi Factory Set Pressure, 20 cfm @ 150 psi, -65°F to 450°F (MPN CTM125)
CONRADER Tank Manifold: Carry Tank, 150 psi Factory Set Pressure, 20 cfm @ 150 psi, -65�°F to 450°F (MPN CTM150)
CONRADER
CONRADER Tank Manifold: Carry Tank, 150 psi Factory Set Pressure, 20 cfm @ 150 psi, -65°F to 450°F (MPN CTM150)
CONRADER Check Valve: In Tank, Brass, 1/2 in Compression, 1/2 in (M)NPT, 500 psi Max. Pressure (MPN CTD1212)
CONRADER
CONRADER Check Valve: In Tank, Brass, 1/2 in Compression, 1/2 in (M)NPT, 500 psi Max. Pressure (MPN CTD1212)
CONRADER Check Valve: In Tank, Brass, 3/4 in Compression, 1 in (M)NPT, 500 psi Max. Pressure (MPN CTD341)
CONRADER
CONRADER Check Valve: In Tank, Brass, 3/4 in Compression, 1 in (M)NPT, 500 psi Max. Pressure (MPN CTD341)
CONRADER Check Valve: In Line, Brass, 1/4 in (F)NPT, 1/4 in (F)NPT, 500 psi Max. Pressure (MPN CLB14)
CONRADER
CONRADER Check Valve: In Line, Brass, 1/4 in (F)NPT, 1/4 in (F)NPT, 500 psi Max. Pressure (MPN CLB14)
CONRADER Check Valve: In Tank, Brass, 1/2 in (F)NPT, 1/2 in M)NPT, 500 psi Max. Pressure (MPN CTB1212)
CONRADER
CONRADER Check Valve: In Tank, Brass, 1/2 in (F)NPT, 1/2 in M)NPT, 500 psi Max. Pressure (MPN CTB1212)
CONRADER Check Valve: In Tank, Brass, 3/4 in Inverted Flare, 3/4 in (M)NPT, 500 psi Max. Pressure (MPN CTG3434)
CONRADER
CONRADER Check Valve: In Tank, Brass, 3/4 in Inverted Flare, 3/4 in (M)NPT, 500 psi Max. Pressure (MPN CTG3434)