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

HAM-LET Integral-Bonnet Needle Valve: Inline Valve Body, 316 Stainless Steel - Stainless Steel Straight-Body Needle Valves
HAM-LETStainless Steel Straight-Body Needle Valves

HAM-LET Integral-Bonnet Needle Valve: Inline Valve Body, 316 Stainless Steel

The HAM-LET SS Integral-Bonnet Needle Valve (SKU 3G-OTH-446374) is a 316 stainless steel straight-body needle valve from the H300U series, featuring an integral bonnet and a regulating stem. It is designed for liquid…

SKU 3G-OTH-446374

Also listed as: H300USSLR38RS · H 300U SS L R 3 8 RS · H-300U-SS-L-R-3-8-RS

Brand
HAM-LET
Item
Integral-Bonnet Needle Valve: Inline Valve Body, 316 Stainless Steel
Category
Stainless Steel Straight-Body Needle Valves
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

HAM-LET
Manufacturer Part Number
H-300U-SS-L-R-3/8-RS
Type
Integral Bonnet
Handle
Plastic Knob
For Media
Liquid
Standards
ISO 15848-1
Stem Type
Regulating
Valve Series
H300U
Connection Type
Let-Lok x Let-Lok
Stainless Steel
316
Connection Type - Side 1
Let-Lok
Connection Type - Side 2
Let-Lok

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

HAM-LET Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The HAM-LET SS Integral-Bonnet Needle Valve (SKU 3G-OTH-446374) is a 316 stainless steel straight-body needle valve from the H300U series, featuring an integral bonnet and a regulating stem. It is designed for liquid media and complies with ISO 15848-1 standards. The valve uses Let-Lok connections on both sides and is operated via a plastic knob handle.

Frequently Asked Questions

What is the HAM-LET SS Integral-Bonnet Needle Valve used for?

The HAM-LET SS Integral-Bonnet Needle Valve is used for precise flow regulation of liquid media in industrial piping systems. It is commonly applied in instrumentation, chemical processing, and hydraulic circuits where leak-tight performance is critical. Its 316 stainless steel construction and ISO 15848-1 compliance make it suitable for demanding environments.

What are the specifications of the HAM-LET H300U needle valve?

The HAM-LET H300U needle valve features a 316 stainless steel body, integral bonnet, and regulating stem. It has Let-Lok connections on both sides and a plastic knob handle. Designed for liquid media, it meets ISO 15848-1 standards. The manufacturer part number is H-300U-SS-L-R-3/8-RS.

Where to buy HAM-LET needle valves worldwide?

You can source HAM-LET needle valves worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the HAM-LET H300U series valves.

How to install a HAM-LET integral-bonnet needle valve?

Install the HAM-LET integral-bonnet needle valve by ensuring the Let-Lok connections are clean and properly aligned. Tighten connections to manufacturer torque specifications. Use the plastic knob to operate the regulating stem for flow control. Always follow standard piping best practices and verify system pressure compatibility before installation.

Used in

Common applications for HAM-LET
Oil and gas — HAM-LET H99 Series needle valves for instrument isolation in high-pressure lines
Chemical processing — HAM-LET H-400 Series check valves for backflow prevention in corrosive fluid systems
Semiconductor manufacturing — HAM-LET EVZS4R-BV diaphragm valves for ultra-high-purity gas distribution
Power generation — HAM-LET H-6800 Series three-way ball valves for cooling water flow switching
Analytical instrumentation — HAM-LET H300U Series metering valves for precise flow regulation in lab gas systems
Hydraulic systems — HAM-LET H-410 Series poppet check valves for load-holding in hydraulic circuits

HAM-LET Products

3G Electric supplies HAM-LET stainless steel straight-body needle 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

Compatible alternatives & equivalents

Cross-referenced by specification & description
HAM-LET SS Integral-Bonnet Needle Valve: Inline Valve Body, 316 Stainless Steel, Integral Bonnet (MPN H-300U-SS-L-R-1/2-M)
HAM-LET
HAM-LET SS Integral-Bonnet Needle Valve: Inline Valve Body, 316 Stainless Steel, Integral Bonnet (MPN H-300U-SS-L-R-1/2-M)
HAM-LET SS Integral-Bonnet Needle Valve: Inline Valve Body, 316 Stainless Steel, Integral Bonnet (MPN H-300U-SS-L-V-12MM-RAS)
HAM-LET
HAM-LET SS Integral-Bonnet Needle Valve: Inline Valve Body, 316 Stainless Steel, Integral Bonnet (MPN H-300U-SS-L-V-12MM-RAS)
HAM-LET SS Integral-Bonnet Needle Valve: Inline Valve Body, 316 Stainless Steel, Integral Bonnet (MPN H-300U-SS-L-R-3/8-M)
HAM-LET
HAM-LET SS Integral-Bonnet Needle Valve: Inline Valve Body, 316 Stainless Steel, Integral Bonnet (MPN H-300U-SS-L-R-3/8-M)
HAM-LET SS Integral-Bonnet Needle Valve: Inline Valve Body, 316 Stainless Steel, Integral Bonnet (MPN H-300U-SS-L-R-1/2-RS)
HAM-LET
HAM-LET SS Integral-Bonnet Needle Valve: Inline Valve Body, 316 Stainless Steel, Integral Bonnet (MPN H-300U-SS-L-R-1/2-RS)
HAM-LET SS Integral-Bonnet Needle Valve: Inline Valve Body, 316 Stainless Steel, Integral Bonnet (MPN H-300U-SS-L-R-1/4-M)
HAM-LET
HAM-LET SS Integral-Bonnet Needle Valve: Inline Valve Body, 316 Stainless Steel, Integral Bonnet (MPN H-300U-SS-L-R-1/4-M)
HAM-LET SS Integral-Bonnet Needle Valve: Inline Valve Body, 316 Stainless Steel, Integral Bonnet (MPN H-380U-SS-N-R-1/4-RS)
HAM-LET
HAM-LET SS Integral-Bonnet Needle Valve: Inline Valve Body, 316 Stainless Steel, Integral Bonnet (MPN H-380U-SS-N-R-1/4-RS)

More from HAM-LET

View all HAM-LET parts
HAM-LET SS Integral-Bonnet Needle Valve: Inline Valve Body, 316 Stainless Steel, Integral Bonnet (MPN H-385U-SS-N-NR-1/4-RAS)
HAM-LET
HAM-LET SS Integral-Bonnet Needle Valve: Inline Valve Body, 316 Stainless Steel, Integral Bonnet (MPN H-385U-SS-N-NR-1/4-RAS)
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Integral Bonnet, Male, NPT (MPN H-395U-SS-NL-R-1/8-M)
HAM-LET
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Integral Bonnet, Male, NPT (MPN H-395U-SS-NL-R-1/8-M)
HAM-LET SS Integral-Bonnet Needle Valve: Inline Valve Body, 316 Stainless Steel, Integral Bonnet (MPN H-385U-SS-N-K-1/4-RS)
HAM-LET
HAM-LET SS Integral-Bonnet Needle Valve: Inline Valve Body, 316 Stainless Steel, Integral Bonnet (MPN H-385U-SS-N-K-1/4-RS)
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Integral Bonnet, Let-Lok (MPN H-300U-SS-L-V-12MM-RAS)
HAM-LET
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Integral Bonnet, Let-Lok (MPN H-300U-SS-L-V-12MM-RAS)
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Integral Bonnet, Let-Lok (MPN H-300U-SS-L-R-8MM-RS)
HAM-LET
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Integral Bonnet, Let-Lok (MPN H-300U-SS-L-R-8MM-RS)
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Screw-In Bonnet, Let-Lok (MPN H-99S-00-SS-L-R-3/8)
HAM-LET
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Screw-In Bonnet, Let-Lok (MPN H-99S-00-SS-L-R-3/8)
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Screw-In Bonnet, FNPT x FNPT (MPN H-99S-10-SS-N-NR-1/4)
HAM-LET
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Screw-In Bonnet, FNPT x FNPT (MPN H-99S-10-SS-N-NR-1/4)
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Screw-In Bonnet, FNPT x FNPT (MPN H-99S-00-SS-L-V-3/8)
HAM-LET
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Screw-In Bonnet, FNPT x FNPT (MPN H-99S-00-SS-L-V-3/8)