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

Watts Second Check Valve Repair Kit: Second Check Kit, 793HG7/793HL8/818DD2, 2 009M2/LF009M2 - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts Second Check Valve Repair Kit: Second Check Kit, 793HG7/793HL8/818DD2, 2 009M2/LF009M2

The WATTS Second Check Valve Repair Kit is a repair kit for Watts backflow preventers, designed for use with the Series 009. It is compatible with valve size M2 and manufacturer model numbers 2 009M2 and LF009M2. The…

SKU 3G-OTH-436838

Also listed as: 009M222ndCheckKit · 009-M2-2-2nd-Check-Kit

Brand
Watts
Item
Second Check Valve Repair Kit: Second Check Kit, 793HG7/793HL8/818DD2, 2 009M2/LF009M2
Category
Repair Kits & Parts for Watts Backflow Preventers
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

Watts
Manufacturer Part Number
009 M2 2 2nd Check Kit
Type
793HG7/793HL8/818DD2, 2 009M2/LF009M2, 009
Includes
Cover O-Ring
Compatible Valve Size
M2
Compatible with Series
009
Compatible with Mfr. Model No.
2 009M2/LF009M2

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

Watts Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Second Check Valve Repair Kit is a repair kit for Watts backflow preventers, designed for use with the Series 009. It is compatible with valve size M2 and manufacturer model numbers 2 009M2 and LF009M2. The kit includes a cover O-ring and is identified by manufacturer part number 009 M2 2 2nd Check Kit.

Frequently Asked Questions

What is the Watts second check valve repair kit used for?

The Watts second check valve repair kit is used to service the second check assembly in Watts Series 009 backflow preventers. It is designed for valve size M2 and includes a cover O-ring. This kit helps maintain backflow prevention performance in commercial and industrial water systems.

What are the specifications of the Watts 009 M2 2 2nd Check Kit?

The Watts 009 M2 2 2nd Check Kit is compatible with valve size M2, Series 009, and manufacturer model numbers 2 009M2 and LF009M2. It includes a cover O-ring. The manufacturer part number is 009 M2 2 2nd Check Kit, and it is compatible with part number 818DD2.

Where to buy Watts backflow repair kits worldwide?

Watts backflow repair kits, including the second check kit for Series 009, are available to order through 3G Electric. As a global industrial equipment distributor since 1990, 3G Electric handles logistics, customs clearance, and delivery to worldwide destinations for these Watts components.

How to install a Watts second check valve repair kit?

To install a Watts second check valve repair kit, first depressurize and isolate the backflow preventer. Remove the access cover, extract the old second check assembly, and replace it with the new kit components, including the cover O-ring. Reassemble and test per Watts guidelines. Always follow local plumbing codes.

Used in

Common applications for Watts
Industrial burner gas safety systems — Watts HF2000 filters with GF-series seal kits maintain clean, regulated gas supply to burner pilot and main flame controls
Commercial heating and boiler installations — Modular filter assemblies support preventive maintenance and component replacement without full system shutdown
Process gas delivery pipelines — DN25 through DN125 filter bodies accommodate varying flow rates and inlet pressures across manufacturing and chemical processes
Gas pressure regulation benches — Multi-stage Watts filter platforms integrate with pressure reducers and safety shutoff valves in test and calibration environments
Equipment retrofit and upgrade projects — Available connection sizes and seal kits enable adaptation of newer Watts components into legacy gas control systems
Planned maintenance and spare-parts inventory — Filter seal kits allow facilities to stock consumables in advance, reducing downtime during scheduled gas system servicing

Watts Products

3G Electric supplies Watts repair kits & parts for watts backflow preventers. 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
WATTS Second Check Valve Repair Kit: Second Check Kit, 793HG3/793HG4/793HL6/793HL7/793HP6/818DD9 (MPN 009 M2 1-1/4 - 1-1/2 2nd Check Kit)
Watts
WATTS Second Check Valve Repair Kit: Second Check Kit, 793HG3/793HG4/793HL6/793HL7/793HP6/818DD9 (MPN 009 M2 1-1/4 - 1-1/2 2nd Check Kit)
WATTS Second Check Valve Repair Kit: Second Check Kit, 26X140/429J30/793HG8/818DD8, 1 009M2/LF009M2 (MPN 009 M2 1 2nd Check Kit)
Watts
WATTS Second Check Valve Repair Kit: Second Check Kit, 26X140/429J30/793HG8/818DD8, 1 009M2/LF009M2 (MPN 009 M2 1 2nd Check Kit)
WATTS Second Check Valve Repair Kit: Second Check Kit, 793HG9/818DD3/818DE0/818DE3, Repair Kit, 009 (MPN 009 M2-3/4 2nd Check Kit)
Watts
WATTS Second Check Valve Repair Kit: Second Check Kit, 793HG9/818DD3/818DE0/818DE3, Repair Kit, 009 (MPN 009 M2-3/4 2nd Check Kit)
WATTS Second Check Valve Repair Kit: Second Check Valve Repair Kit, 429J28/793HF6/793HL3/818DD5, 009 (MPN 009-1/4 - 1/2 2nd Check Kit)
Watts
WATTS Second Check Valve Repair Kit: Second Check Valve Repair Kit, 429J28/793HF6/793HL3/818DD5, 009 (MPN 009-1/4 - 1/2 2nd Check Kit)
WATTS Second Check Valve Repair Kit: Second Check Valve Repair Kit, 793HG2/793HL5/818DE6/818DE8, 007 (MPN 1-1/4-1 ½ 007M2/LF007M2)
Watts
WATTS Second Check Valve Repair Kit: Second Check Valve Repair Kit, 793HG2/793HL5/818DE6/818DE8, 007 (MPN 1-1/4-1 ½ 007M2/LF007M2)
WATTS Second Check Valve Repair Kit: Second Check Valve Repair Kit, 522P30/812MY5/818DE7, Repair Kit (MPN 007 M3-3/4 2nd Check Kit)
Watts
WATTS Second Check Valve Repair Kit: Second Check Valve Repair Kit, 522P30/812MY5/818DE7, Repair Kit (MPN 007 M3-3/4 2nd Check Kit)

More from Watts

View all Watts parts
WATTS Backflow Preventer Repair Kits: Second Check Kit, 36JD25/36JD26/36JD27/6AUW9, 994/994RPDA (MPN RK994/994RPDA-CK2-21/2-4)
Watts
WATTS Backflow Preventer Repair Kits: Second Check Kit, 36JD25/36JD26/36JD27/6AUW9, 994/994RPDA (MPN RK994/994RPDA-CK2-21/2-4)
WATTS Backflow Preventer Repair Kits: First Check Kit, 522P31, 009/LF009, Repair Kit, RK-LF009 (MPN LFRK 009-CK1 2-1/2-3)
Watts
WATTS Backflow Preventer Repair Kits: First Check Kit, 522P31, 009/LF009, Repair Kit, RK-LF009 (MPN LFRK 009-CK1 2-1/2-3)
WATTS Backflow Preventer Repair Kits: Complete Rubber Parts Kit, 809GC7, 1 in Compatible Valve Size (MPN RK 919-RT 1)
Watts
WATTS Backflow Preventer Repair Kits: Complete Rubber Parts Kit, 809GC7, 1 in Compatible Valve Size (MPN RK 919-RT 1)
WATTS Backflow Preventer Repair Kit: Relief Valve Kit, 793PG4/793PG6, 4 in Compatible Valve Size (MPN RK909RT4)
Watts
WATTS Backflow Preventer Repair Kit: Relief Valve Kit, 793PG4/793PG6, 4 in Compatible Valve Size (MPN RK909RT4)
WATTS Backflow Preventer Repair Kits: First Check Kit, 36JD29/36JD30, 994/994RPDA, Repair Kit (MPN RK 994/994RPDA-CK1 8-10)
Watts
WATTS Backflow Preventer Repair Kits: First Check Kit, 36JD29/36JD30, 994/994RPDA, Repair Kit (MPN RK 994/994RPDA-CK1 8-10)
WATTS Vent Elbows: Air Gaps and Elbow, 3/4 in to 1 in Compatible Valve Size, Repair Part, 909 ELC (MPN 909ELC)
Watts
WATTS Vent Elbows: Air Gaps and Elbow, 3/4 in to 1 in Compatible Valve Size, Repair Part, 909 ELC (MPN 909ELC)
WATTS Backflow Preventer Repair Kit: Complete Rubber Parts Kit, 26X140/793HG8/818DD8, Repair Kit (MPN 009 M2 1 Rubber Kit)
Watts
WATTS Backflow Preventer Repair Kit: Complete Rubber Parts Kit, 26X140/793HG8/818DD8, Repair Kit (MPN 009 M2 1 Rubber Kit)
WATTS Second Check Valve Repair Kit: Second Check Valve Repair Kit, 793PG7, 6 LF909, Repair Kit (MPN 909 6 2nd Check Kit)
Watts
WATTS Second Check Valve Repair Kit: Second Check Valve Repair Kit, 793PG7, 6 LF909, Repair Kit (MPN 909 6 2nd Check Kit)