HAM-LET Plumbing Needle Valves: Inline Valve Body, 316 Stainless Steel, Integral Bonnet
The HAM-LET H-310U-SS-N-R-1/4-RS is a 316 stainless steel straight-body needle valve from the H300U series, featuring an integral bonnet and a regulating stem. It has FNPT x FNPT connections (female NPT on both…
SKU 3G-OTH-446253
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Product Description
The HAM-LET H-310U-SS-N-R-1/4-RS is a 316 stainless steel straight-body needle valve from the H300U series, featuring an integral bonnet and a regulating stem. It has FNPT x FNPT connections (female NPT on both sides) and a plastic knob handle, designed for liquid media. This valve complies with ISO 15848-1 standards.
Frequently Asked Questions
What is the HAM-LET H-310U-SS-N-R-1/4-RS needle valve used for?
The HAM-LET H-310U-SS-N-R-1/4-RS is a 316 stainless steel straight-body needle valve designed for precise flow regulation of liquid media in industrial piping systems. It is commonly used in process instrumentation, sampling systems, and hydraulic circuits where reliable shut-off and fine metering are required.
What are the specifications of the HAM-LET H-310U needle valve?
This HAM-LET H300U series valve has a 316 stainless steel body with an integral bonnet and regulating stem. It features FNPT x FNPT connections (female NPT on both sides), a plastic knob handle, and complies with ISO 15848-1 standards. It is designed for liquid media only.
Where to buy HAM-LET needle valves worldwide?
3G Electric supplies HAM-LET H-310U-SS-N-R-1/4-RS needle valves worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this H300U series valve.
How to install a HAM-LET integral bonnet needle valve?
Install the HAM-LET H-310U valve with the flow arrow aligned to system direction. Apply thread sealant to the FNPT connections and tighten to manufacturer torque specs. Avoid over-tightening the plastic knob handle. For liquid media, ensure the system is depressurized before maintenance.
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Common applications for HAM-LETHAM-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.

