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

HAM-LET Stainless Steel Instrumentation Poppet Check Valve, 1 in, Let-Lok, FKM - Stainless Steel Instrumentation Poppet Check Valves
HAM-LETStainless Steel Instrumentation Poppet Check Valves

HAM-LET Stainless Steel Instrumentation Poppet Check Valve, 1 in, Let-Lok, FKM

The HAM-LET Check Valve: Poppet is a stainless steel instrumentation poppet check valve with an inline valve body and a 1 in pipe size, featuring Let-Lok® x Let-Lok® connections. It has a 316 Stainless Steel seat…

SKU 3G-OTH-428788

Also listed as: H400SSL125PSI · H 400 SS L 1 25 PSI · H-400-SS-L-1-25-PSI

Brand
HAM-LET
Item
Stainless Steel Instrumentation Poppet Check Valve, 1 in, Let-Lok, FKM
Category
Stainless Steel Instrumentation Poppet Check 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 — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

HAM-LET
Manufacturer Part Number
H-400-SS-L-1"-25 PSI
Type
Inline Valve Body, Let-Lok® x Let-Lok®, Let-Lok, FKM
Pipe Size
1 in
Seat Material
316 Stainless Steel

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 Check Valve: Poppet is a stainless steel instrumentation poppet check valve with an inline valve body and a 1 in pipe size, featuring Let-Lok® x Let-Lok® connections. It has a 316 Stainless Steel seat material and is supplied with an FKM seal, as indicated by manufacturer part number H-400-SS-L-1"-25 PSI.

Frequently Asked Questions

What is the HAM-LET H-400-SS-L-1"-25 PSI check valve used for?

The HAM-LET H-400-SS-L-1"-25 PSI is a stainless steel instrumentation poppet check valve used to prevent backflow in high-purity or corrosive fluid systems. It is commonly applied in chemical processing, oil and gas, and analytical instrumentation where reliable one-way flow and leak-tight sealing are required.

What are the specifications of the HAM-LET H-400-SS-L-1"-25 PSI check valve?

This HAM-LET check valve has a 1 in pipe size, inline valve body, and Let-Lok® x Let-Lok® connections. The seat material is 316 Stainless Steel, and it includes an FKM seal. The manufacturer part number is H-400-SS-L-1"-25 PSI, and it is designed for instrumentation-grade applications.

Where to buy the HAM-LET H-400-SS-L-1"-25 PSI check valve worldwide?

You can source the HAM-LET H-400-SS-L-1"-25 PSI check valve 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 HAM-LET instrumentation valve.

How to install the HAM-LET H-400-SS-L-1"-25 PSI check valve?

Install the HAM-LET check valve in the correct flow direction as indicated by the arrow on the body. Use compatible Let-Lok® fittings and tighten connections to manufacturer torque specifications. Ensure the system is depressurized before installation. For best results, follow generic instrumentation valve best practices and consult the HAM-LET installation guide.

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 instrumentation poppet check 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
Inline poppet check valve with 1/8 in pipe size, 316 stainless steel seat, and FKM seal. Let-Lok® connections for secure tubing installation. Used in instrumentation systems to prevent reverse flow of fluids or gases
HAM-LET
Inline poppet check valve with 1/8 in pipe size, 316 stainless steel seat, and FKM seal. Let-Lok® connections for secure tubing installation. Used in instrumentation systems to prevent reverse flow of fluids or gases
HAM-LET Check Valve: Poppet, Inline Valve Body, 3/4 in Pipe Size, Let-Lok® x Let-Lok®, Let-Lok, FKM (MPN H-400-SS-L-3/4"-25 PSI)
HAM-LET
HAM-LET Check Valve: Poppet, Inline Valve Body, 3/4 in Pipe Size, Let-Lok® x Let-Lok®, Let-Lok, FKM (MPN H-400-SS-L-3/4"-25 PSI)
Inline poppet check valve with 316 stainless steel seat and FKM seals. Prevents backflow in instrumentation and process lines. Suitable for high-purity fluid systems, chemical injection, and gas handling. Connections: Let-Lok® x Let-Lok®. Pipe size: 12 mm. Cracking pressure: 25 PSI
HAM-LET
Inline poppet check valve with 316 stainless steel seat and FKM seals. Prevents backflow in instrumentation and process lines. Suitable for high-purity fluid systems, chemical injection, and gas handling. Connections: Let-Lok® x Let-Lok®. Pipe size: 12 mm. Cracking pressure: 25 PSI
This inline poppet check valve features a 316 stainless steel seat and EPDM seals, with 3/8 in Let-Lok® connections. It is designed for unidirectional flow control in instrumentation systems, preventing backflow in process lines
HAM-LET
This inline poppet check valve features a 316 stainless steel seat and EPDM seals, with 3/8 in Let-Lok® connections. It is designed for unidirectional flow control in instrumentation systems, preventing backflow in process lines
HAM-LET Check Valve: Poppet, Inline Valve Body, 1/4 in Pipe Size, Let-Lok® x Let-Lok®, Let-Lok, PTFE (MPN H-400-SS-L-1/4"-3 PSI-PT)
HAM-LET
HAM-LET Check Valve: Poppet, Inline Valve Body, 1/4 in Pipe Size, Let-Lok® x Let-Lok®, Let-Lok, PTFE (MPN H-400-SS-L-1/4"-3 PSI-PT)
HAM-LET Check Valve: Poppet, Inline Valve Body, 1/4 in Pipe Size, Let-Lok® x Let-Lok®, Let-Lok, PTFE (MPN H-400-SS-L-1/4"-5 PSI-PT)
HAM-LET
HAM-LET Check Valve: Poppet, Inline Valve Body, 1/4 in Pipe Size, Let-Lok® x Let-Lok®, Let-Lok, PTFE (MPN H-400-SS-L-1/4"-5 PSI-PT)

More from HAM-LET

View all HAM-LET parts
This stainless steel instrumentation poppet check valve features an inline valve body with 1/2 in pipe size and Let-Lok® x Let-Lok® connections. The seat is made of 316 stainless steel, and the seals are EPDM. It is used to prevent reverse flow in fluid systems, typical for applications requiring one-way flow control
HAM-LET
This stainless steel instrumentation poppet check valve features an inline valve body with 1/2 in pipe size and Let-Lok® x Let-Lok® connections. The seat is made of 316 stainless steel, and the seals are EPDM. It is used to prevent reverse flow in fluid systems, typical for applications requiring one-way flow control
This HAM-LET check valve is a poppet type with an inline valve body, designed for water, gas, oil, and chemical media. It features a 316 stainless steel seat material. Used in industrial instrumentation systems to prevent backflow in piping
HAM-LET
This HAM-LET check valve is a poppet type with an inline valve body, designed for water, gas, oil, and chemical media. It features a 316 stainless steel seat material. Used in industrial instrumentation systems to prevent backflow in piping
Inline poppet check valve with 316 stainless steel seat and EPDM seal. Features Let-Lok® x Let-Lok® connections for 1/4 in pipe size. Used in instrumentation systems to prevent backflow in process control, chemical injection, and gas handling applications
HAM-LET
Inline poppet check valve with 316 stainless steel seat and EPDM seal. Features Let-Lok® x Let-Lok® connections for 1/4 in pipe size. Used in instrumentation systems to prevent backflow in process control, chemical injection, and gas handling applications
Stainless steel poppet check valve with inline valve body, 1/8 in pipe size, and Let-Lok® end connections. FKM seal. Cracking pressure 25 PSI. Used in instrumentation systems to prevent reverse flow of fluids or gases in high-pressure applications
HAM-LET
Stainless steel poppet check valve with inline valve body, 1/8 in pipe size, and Let-Lok® end connections. FKM seal. Cracking pressure 25 PSI. Used in instrumentation systems to prevent reverse flow of fluids or gases in high-pressure applications
This HAM-LET poppet check valve features an inline valve body and is constructed from stainless steel. It is designed for water media and provides a cracking pressure of 25 PSI. Typical applications include preventing backflow in process instrumentation, hydraulic lines, and sampling panels
HAM-LET
This HAM-LET poppet check valve features an inline valve body and is constructed from stainless steel. It is designed for water media and provides a cracking pressure of 25 PSI. Typical applications include preventing backflow in process instrumentation, hydraulic lines, and sampling panels
Inline poppet check valve with 316 stainless steel body and seat. 1 in pipe size, MNPT x MNPT connections. Prevents reverse flow in instrumentation systems for liquids or gases
HAM-LET
Inline poppet check valve with 316 stainless steel body and seat. 1 in pipe size, MNPT x MNPT connections. Prevents reverse flow in instrumentation systems for liquids or gases
Inline poppet check valve with 316 stainless steel seat and PTFE seal. Prevents reverse flow in instrumentation systems, suitable for high-purity gas and liquid lines, hydraulic systems, and process control panels. Pipe size 1/4 in with Let-Lok® connections
HAM-LET
Inline poppet check valve with 316 stainless steel seat and PTFE seal. Prevents reverse flow in instrumentation systems, suitable for high-purity gas and liquid lines, hydraulic systems, and process control panels. Pipe size 1/4 in with Let-Lok® connections
This inline poppet check valve features a 316 stainless steel seat and FKM seals, with 12 mm Let-Lok® x Let-Lok® connections. It is used in instrumentation systems to prevent reverse flow of liquids or gases in high-purity and corrosive fluid handling applications
HAM-LET
This inline poppet check valve features a 316 stainless steel seat and FKM seals, with 12 mm Let-Lok® x Let-Lok® connections. It is used in instrumentation systems to prevent reverse flow of liquids or gases in high-purity and corrosive fluid handling applications