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

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

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

The HAM-LET H300U Series Stainless Steel Straight-Body Needle Valve (SKU 3G-OTH-446280, MPN H-300U-SS-L-V-1/2-RS) is an inline valve body with a V-Stem and plastic knob, designed for liquid media. It features Let-Lok…

SKU 3G-OTH-446280

Also listed as: H300USSLV12RS · H 300U SS L V 1 2 RS · H-300U-SS-L-V-1-2-RS

Brand
HAM-LET
Item
Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Integral Bonnet
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-V-1/2-RS
Type
Integral Bonnet, Let-Lok
Handle
Plastic Knob
For Media
Liquid
Standards
ISO 2006(E)
Stem Type
V-Stem
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 H300U Series Stainless Steel Straight-Body Needle Valve (SKU 3G-OTH-446280, MPN H-300U-SS-L-V-1/2-RS) is an inline valve body with a V-Stem and plastic knob, designed for liquid media. It features Let-Lok x Let-Lok connections and an integral bonnet, conforming to ISO 2006(E) standards.

Frequently Asked Questions

What is the HAM-LET H300U needle valve used for?

The HAM-LET H300U needle valve is used for precise flow control of liquid media in industrial piping systems. Its V-Stem and integral bonnet design provide reliable shut-off and regulation, commonly applied in instrumentation, sampling, and process lines where leak-tight performance is required.

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

The HAM-LET H300U needle valve (MPN H-300U-SS-L-V-1/2-RS) is a 316 stainless steel inline valve with Let-Lok x Let-Lok connections, a V-Stem, and a plastic knob. It is designed for liquid media and conforms to ISO 2006(E) standards. The integral bonnet ensures robust sealing.

Where to buy HAM-LET H300U needle valves worldwide?

You can source HAM-LET H300U 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; we supply genuine HAM-LET components to procurement teams globally.

How to install a HAM-LET H300U needle valve?

Install the HAM-LET H300U needle valve by ensuring the Let-Lok connections are clean and properly aligned. Tighten connections to manufacturer torque specifications, avoiding over-tightening. Use the plastic knob to operate the V-Stem gently. Always verify system pressure is within valve ratings before use.

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 Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Integral Bonnet, Let-Lok (MPN H-300U-SS-L-V-1/2-M)
HAM-LET
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Integral Bonnet, Let-Lok (MPN H-300U-SS-L-V-1/2-M)
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Integral Bonnet, Let-Lok (MPN H-300U-SS-L-V-3/4-M)
HAM-LET
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Integral Bonnet, Let-Lok (MPN H-300U-SS-L-V-3/4-M)
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Integral Bonnet, Let-Lok (MPN H-300U-SS-L-V-1/4-RS)
HAM-LET
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Integral Bonnet, Let-Lok (MPN H-300U-SS-L-V-1/4-RS)
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Integral Bonnet, Let-Lok (MPN H-300U-SS-L-R-3/4-RS)
HAM-LET
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Integral Bonnet, Let-Lok (MPN H-300U-SS-L-R-3/4-RS)
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Integral Bonnet, Let-Lok (MPN H-300U-SS-L-V-3/4-RS)
HAM-LET
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Integral Bonnet, Let-Lok (MPN H-300U-SS-L-V-3/4-RS)
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Integral Bonnet, Let-Lok (MPN H-300U-SS-L-R-10MM-M)
HAM-LET
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Integral Bonnet, Let-Lok (MPN H-300U-SS-L-R-10MM-M)

More from HAM-LET

View all HAM-LET parts
HAM-LET Plumbing Needle Valves: Inline Valve Body, Stainless Steel, Screw-In Bonnet, 12 mm Pipe Size (MPN H-99S-10-SS-TSW-V-12MM-G)
HAM-LET
HAM-LET Plumbing Needle Valves: Inline Valve Body, Stainless Steel, Screw-In Bonnet, 12 mm Pipe Size (MPN H-99S-10-SS-TSW-V-12MM-G)
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Integral Bonnet, Let-Lok (MPN H-300U-SS-L-V-6MM-RS)
HAM-LET
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Integral Bonnet, Let-Lok (MPN H-300U-SS-L-V-6MM-RS)
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Integral Bonnet, MNPT x MNPT (MPN H-380U-SS-N-R-1/8-M)
HAM-LET
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Integral Bonnet, MNPT x MNPT (MPN H-380U-SS-N-R-1/8-M)
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)
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Integral Bonnet, FNPT x FNPT (MPN H-310U-SS-N-V-1/8-M)
HAM-LET
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Integral Bonnet, FNPT x FNPT (MPN H-310U-SS-N-V-1/8-M)
HAM-LET SS Integral-Bonnet Needle Valve: Inline Valve Body, 316 Stainless Steel, Integral Bonnet (MPN H-300U-SS-L-R-3/8-RS)
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-RS)
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Screw-In Bonnet, Let-Lok (MPN H-99S-00-SS-L-NR-12MM)
HAM-LET
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Screw-In Bonnet, Let-Lok (MPN H-99S-00-SS-L-NR-12MM)
HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Screw-In Bonnet, Let-Lok (MPN H-99S-00-SS-L-R-1/2)
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-1/2)