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WILKINS RK34-375R Backflow Preventer Repair Kit for Series 375/375ST/375XL - Repair Kits & Parts for Zurn Backflow Preventers
WILKINSRepair Kits & Parts for Zurn Backflow Preventers

WILKINS RK34-375R Backflow Preventer Repair Kit for Series 375/375ST/375XL

The WILKINS Rubber Repair Kit (SKU RK34-375R, MPN RK34-375R) is a repair kit for Zurn backflow preventers, compatible with Series 375, 375ST, and 375XL models. It includes a Second Check Seal Ring and fits valve…

SKU 3G-OTH-427818

Also listed as: RK34375R · RK34 375R

Brand
WILKINS
Item
RK34-375R Backflow Preventer Repair Kit for Series 375/375ST/375XL
Part Number
RK34-375R
Category
Repair Kits & Parts for Zurn Backflow Preventers
Available to Order
Also known as:RK34-375RWILKINS
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Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
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Technical Specifications

WILKINS
Manufacturer Part Number
RK34-375R
Type
6AVY0, 375/375ST/375XL, Repair Kit
Includes
Second Check Seal Ring
Compatible Valve Size
1/2 in to 3/4 in
Compatible with Series
375
Compatible with Mfr. Model No.
375XL

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

Product Description

The WILKINS Rubber Repair Kit (SKU RK34-375R, MPN RK34-375R) is a repair kit for Zurn backflow preventers, compatible with Series 375, 375ST, and 375XL models. It includes a Second Check Seal Ring and fits valve sizes from 1/2 in to 3/4 in.

Frequently Asked Questions

What is the WILKINS RK34-375R repair kit used for?

The WILKINS RK34-375R rubber repair kit is used to service Zurn backflow preventers in Series 375, 375ST, and 375XL. It includes a Second Check Seal Ring and fits valve sizes from 1/2 in to 3/4 in, helping maintain backflow prevention in commercial and industrial water systems.

What are the specifications of the WILKINS RK34-375R repair kit?

The WILKINS RK34-375R repair kit (SKU 3G-OTH-427818) is compatible with valve sizes 1/2 in to 3/4 in and fits Series 375, 375ST, and 375XL backflow preventers. It includes a Second Check Seal Ring and is identified by Part No. 1-375 and manufacturer part number RK34-375R.

Where to buy the WILKINS RK34-375R repair kit worldwide?

3G Electric supplies the WILKINS RK34-375R repair kit worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this genuine Zurn-compatible repair kit to your facility, regardless of location.

How to install the WILKINS RK34-375R repair kit?

To install the WILKINS RK34-375R repair kit, first depressurize and isolate the backflow preventer. Remove the valve cover, replace the old seal ring with the included Second Check Seal Ring, and reassemble. Always follow the manufacturer's instructions for your specific Series 375 model to ensure proper sealing.

Used in

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Commercial plumbing — WILKINS 1-70XLDU double-union water pressure regulator reduces incoming city water pressure to 25-75 psi for fixture protection.
Residential water systems — WILKINS P1000AXL-150C ASME Section IV relief valve protects hot water heaters from overpressure.
HVAC hydronic loops — WILKINS 112-850TXL bronze ball valve provides full-port isolation for 1-1/2 in piping.
Industrial process water — WILKINS 2-600XLC single-union regulator stabilizes 2 in supply pressure for equipment.
Potable water distribution — WILKINS low-lead compliant regulators and ball valves meet safe drinking water requirements.
Maintenance and repair — WILKINS repair kits and replacement valves restore function in existing water control assemblies.
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WILKINS Products

3G Electric supplies WILKINS repair kits & parts for zurn backflow preventers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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