Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
HAM-LET Ultra High Purity Diaphragm Valve: 1/4 in, 316L Stainless Steel - Ultra-High-Purity Manual Diaphragm Valves
HAM-LETUltra-High-Purity Manual Diaphragm Valves

HAM-LET Ultra High Purity Diaphragm Valve: 1/4 in, 316L Stainless Steel

The HAM-LET Ultra High Purity Diaphragm Valve (SKU 884FL6, MPN HM20-4VKLQ-GF4) is a 1/4 in manual diaphragm valve constructed from 316L Stainless Steel. It features a Chromium Cobalt Nickel diaphragm and is rated for…

SKU 3G-OTH-446407

Brand
HAM-LET
Item
Ultra High Purity Diaphragm Valve: 1/4 in, 316L Stainless Steel
Category
Ultra-High-Purity Manual Diaphragm Valves
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
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

Technical Specifications

HAM-LET
Manufacturer Part Number
HM20-4VKLQ-GF4
Standards
SEMI F20-0305
Stainless Steel
316L
Diaphragm Material
Chromium Cobalt Nickel
Max Pressure (CWP)
450 psi
View Full Spec Sheet

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 Ultra High Purity Diaphragm Valve (SKU 884FL6, MPN HM20-4VKLQ-GF4) is a 1/4 in manual diaphragm valve constructed from 316L Stainless Steel. It features a Chromium Cobalt Nickel diaphragm and is rated for a maximum pressure of 450 psi (CWP). This valve complies with SEMI F20-0305 standards.

Frequently Asked Questions

What is the HAM-LET Ultra High Purity Diaphragm Valve used for?

This valve is designed for ultra-high-purity gas and chemical handling in semiconductor manufacturing, pharmaceutical processing, and other critical clean-room applications. Its 316L stainless steel body and chromium cobalt nickel diaphragm ensure minimal contamination and reliable shut-off in high-purity systems.

What are the specifications of the HAM-LET HM20-4VKLQ-GF4 valve?

The HAM-LET HM20-4VKLQ-GF4 is a 1/4 in manual diaphragm valve made from 316L stainless steel. It has a chromium cobalt nickel diaphragm, a maximum pressure rating of 450 psi (CWP), and complies with SEMI F20-0305 standards. It is suitable for ultra-high-purity applications.

Where to buy HAM-LET Ultra High Purity Diaphragm Valves worldwide?

3G Electric supplies HAM-LET ultra-high-purity diaphragm valves worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on the HM20-4VKLQ-GF4 or other HAM-LET models.

How to install a HAM-LET diaphragm valve in a high-purity system?

Install the valve in a clean environment using appropriate orbital welding or compression fittings per SEMI F20-0305 guidelines. Ensure the diaphragm is not overtightened to avoid damage. Always purge the line with inert gas before operation to maintain purity. Consult the manufacturer's manual for torque specifications.

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 ultra-high-purity manual diaphragm 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 →

Similar products

Matched by specification & description
HAM-LET Ultra High Purity Diaphragm Valve: 1/4 in, 316L Stainless Steel, 450 psi Max Pressure (CWP) (MPN HM20-4VKLQ-M4). Key specifications — Diaphragm Material: Chromium Cobalt Nickel; Brand: HAM-LET; Standards: SEMI F20-0305.
HAM-LET
HAM-LET Ultra High Purity Diaphragm Valve: 1/4 in, 316L Stainless Steel, 450 psi Max Pressure (CWP) (MPN HM20-4VKLQ-M4). Key specifications — Diaphragm Material: Chromium Cobalt Nickel; Brand: HAM-LET; Standards: SEMI F20-0305.
HAM-LET Ultra High Purity Diaphragm Valve: 1/4 in, 316L Stainless Steel, 225 psi Max Pressure (CWP) (MPN 2LDS4R-FV). Key specifications — Diaphragm Material: Chromium Cobalt Nickel; Brand: HAM-LET; Standards: SEMI F20-0305.
HAM-LET
HAM-LET Ultra High Purity Diaphragm Valve: 1/4 in, 316L Stainless Steel, 225 psi Max Pressure (CWP) (MPN 2LDS4R-FV). Key specifications — Diaphragm Material: Chromium Cobalt Nickel; Brand: HAM-LET; Standards: SEMI F20-0305.
HAM-LET Ultra High Purity Diaphragm Valve: 1/4 in, 316L Stainless Steel, 225 psi Max Pressure (CWP) (MPN 2LDS4R-BV). Key specifications — Diaphragm Material: Chromium Cobalt Nickel; Brand: HAM-LET; Standards: SEMI F20-0305.
HAM-LET
HAM-LET Ultra High Purity Diaphragm Valve: 1/4 in, 316L Stainless Steel, 225 psi Max Pressure (CWP) (MPN 2LDS4R-BV). Key specifications — Diaphragm Material: Chromium Cobalt Nickel; Brand: HAM-LET; Standards: SEMI F20-0305.
HAM-LET High Purity Diaphragm Valve: 1/4 in, 316L Stainless Steel, 225 psi Max Pressure (CWP), 2-Way (MPN EVZS4R-FV). Key specifications — Diaphragm Material: Chromium Cobalt Nickel; Brand: HAM-LET.
HAM-LET
HAM-LET High Purity Diaphragm Valve: 1/4 in, 316L Stainless Steel, 225 psi Max Pressure (CWP), 2-Way (MPN EVZS4R-FV). Key specifications — Diaphragm Material: Chromium Cobalt Nickel; Brand: HAM-LET.

More from HAM-LET

View all HAM-LET parts →
HAM-LET Ultra High Purity Diaphragm Valve: 1/2 in, 316L Stainless Steel, Compression x Compression (MPN 2LDS8R-BI). Key specifications — Diaphragm Material: Chromium Cobalt Nickel; Brand: HAM-LET; Standards: SEMI F20-0305.
HAM-LET
HAM-LET Ultra High Purity Diaphragm Valve: 1/2 in, 316L Stainless Steel, Compression x Compression (MPN 2LDS8R-BI). Key specifications — Diaphragm Material: Chromium Cobalt Nickel; Brand: HAM-LET; Standards: SEMI F20-0305.
HAM-LET Ultra High Purity Diaphragm Valve: 1/2 in, 316L Stainless Steel, 225 psi Max Pressure (CWP) (MPN 2LDS8R-FV). Key specifications — Diaphragm Material: Chromium Cobalt Nickel; Brand: HAM-LET; Standards: SEMI F20-0305.
HAM-LET
HAM-LET Ultra High Purity Diaphragm Valve: 1/2 in, 316L Stainless Steel, 225 psi Max Pressure (CWP) (MPN 2LDS8R-FV). Key specifications — Diaphragm Material: Chromium Cobalt Nickel; Brand: HAM-LET; Standards: SEMI F20-0305.
HAM-LET Ultra High Purity Diaphragm Valve: 3/4 in, 316L Stainless Steel, Compression x Compression (MPN 2LDS12R-BI). Key specifications — Diaphragm Material: Chromium Cobalt Nickel; Brand: HAM-LET; Standards: SEMI F20-0305.
HAM-LET
HAM-LET Ultra High Purity Diaphragm Valve: 3/4 in, 316L Stainless Steel, Compression x Compression (MPN 2LDS12R-BI). Key specifications — Diaphragm Material: Chromium Cobalt Nickel; Brand: HAM-LET; Standards: SEMI F20-0305.
HAM-LET Ultra High Purity Diaphragm Valve: 1/4 in, 316L Stainless Steel, Compression x Compression (MPN 2LDS4R-BI). Key specifications — Diaphragm Material: Chromium Cobalt Nickel; Brand: HAM-LET; Standards: SEMI F20-0305.
HAM-LET
HAM-LET Ultra High Purity Diaphragm Valve: 1/4 in, 316L Stainless Steel, Compression x Compression (MPN 2LDS4R-BI). Key specifications — Diaphragm Material: Chromium Cobalt Nickel; Brand: HAM-LET; Standards: SEMI F20-0305.
HAM-LET Ultra High Purity Diaphragm Valve: 3/4 in, 316L Stainless Steel, 225 psi Max Pressure (CWP) (MPN 2LDS12R-FV). Key specifications — Diaphragm Material: Chromium Cobalt Nickel; Brand: HAM-LET; Standards: SEMI F20-0305.
HAM-LET
HAM-LET Ultra High Purity Diaphragm Valve: 3/4 in, 316L Stainless Steel, 225 psi Max Pressure (CWP) (MPN 2LDS12R-FV). Key specifications — Diaphragm Material: Chromium Cobalt Nickel; Brand: HAM-LET; Standards: SEMI F20-0305.
HAM-LET Ultra High Purity Diaphragm Valve: 1/2 in, 316L Stainless Steel, 225 psi Max Pressure (CWP) (MPN 2LDS8R-BV). Key specifications — Diaphragm Material: Chromium Cobalt Nickel; Brand: HAM-LET; Standards: SEMI F20-0305.
HAM-LET
HAM-LET Ultra High Purity Diaphragm Valve: 1/2 in, 316L Stainless Steel, 225 psi Max Pressure (CWP) (MPN 2LDS8R-BV). Key specifications — Diaphragm Material: Chromium Cobalt Nickel; Brand: HAM-LET; Standards: SEMI F20-0305.
HAM-LET Ultra High Purity Diaphragm Valve: 3/4 in, 316L Stainless Steel, 225 psi Max Pressure (CWP) (MPN 2LDS12R-BV). Key specifications — Diaphragm Material: Chromium Cobalt Nickel; Brand: HAM-LET; Standards: SEMI F20-0305.
HAM-LET
HAM-LET Ultra High Purity Diaphragm Valve: 3/4 in, 316L Stainless Steel, 225 psi Max Pressure (CWP) (MPN 2LDS12R-BV). Key specifications — Diaphragm Material: Chromium Cobalt Nickel; Brand: HAM-LET; Standards: SEMI F20-0305.
HAM-LET Ultra High Purity Diaphragm Valve: 1/4 in, 316L Stainless Steel, 450 psi Max Pressure (CWP) (MPN HM20-4VKLQ-GM4). Key specifications — Diaphragm Material: Chromium Cobalt Nickel; Brand: HAM-LET; Standards: SEMI F20-0305.
HAM-LET
HAM-LET Ultra High Purity Diaphragm Valve: 1/4 in, 316L Stainless Steel, 450 psi Max Pressure (CWP) (MPN HM20-4VKLQ-GM4). Key specifications — Diaphragm Material: Chromium Cobalt Nickel; Brand: HAM-LET; Standards: SEMI F20-0305.