WILKINS 450ST 8"-10" #1 CHECK ASSEMBLY KIT ** See detailed description below **

WK 450ST 8-10"CK1&2/475 8"#2 #RK8-450STCK1

Zurn

SKU:
RK8-450STCK1
UPC:
612052288208
Availability:
Items in stock ship same day if ordered by 3:30pm PST, Monday-Friday.
Model Series:
450ST / STV / STR / STRV 4" - 10"
Model Group:
450ST / STV / STR / STRV 4" - 10"
Model Size:
8:8"
Model Size:
10:10"
Model Series:
450STDA / STDAV 4" - 10"
Model Group:
450STDA / STDAV 4" - 10"
Model Series:
450STDAR / STDARV 4" - 10"
Model Group:
450STDAR / STDARV 4" - 10"
Spec Sheet:
Manufacturer Spec Sheet
Packing Slip Description:
WK 450ST 8-10"CK1&2/475 8"#2
PDP Heading:
WILKINS 450ST 8"-10" #1 CHECK ASSEMBLY KIT ** See detailed description below **
Catalog Product Description:
Check Assembly ** See Description **
Breakdown:
Repair Guide
Resources Ref Manual:
Reference Manual
Resources Repair Info:
Repair Info

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WILKINS 450ST 8"-10" #1 CHECK ASSEMBLY KIT ** See detailed description below **

REPAIR KIT, CHECK ASSY, 8"-10" 450ST/STV/STR/STRV #1 OR #2 CHECK.
REPAIR KIT, CHECK ASSY, 8"-10" 450STDA/STDAV/STDAR/STDARV #1 CHECK ONLY.
Please make sure to double check the backflow assembly model to ensure you are ordering the correct check assembly for either the #1 or sometimes the #2 depending on several model types.

Model Overview

This is a double check assembly. Production began in 2018. The body is stainless steel and configured in an angle pattern. The normal installation orientation in the ST models allows water to come up from the bottom and then go through two 90 degree turns and then goes into a downward flow. This is commonly called a N pattern installation. The STV model allows for a vertical orientation. This can happen when the downside 2nd check body is rotated 180 degrees. This allows the flow of water to come up from the inlet check and then rotate the outlet so it goes into an upward flow. The STR model has a spool placed between the two check bodies making an adjustable center to center dimension. This allows for a retrofit installation. The rubber repair parts are the same in all 450ST versions. There is a separate check cover for the inlet and outlet check. The cover is attached to the body by a grooved coupling. When the cover is removed the springs are contained. On the 4"-6" sizes the checks are held into the body by a plastic retainer. By squeezing the retainer it can be released and removed, then the Noryl plastic check can be pulled from the body. The modular check is sealed into the body by an O'ring. The 8"-10" size checks are held in by 6 bolts rather than a retainer clip. Once the Noryl plastic check module is removed there are bolts on the back side that can be removed to access the check disc. Spring tension is contained and does not need to be released. If more than the rubber check disc is needed for repair, the check module will need to be replaced.

Model Series:
450ST / STV / STR / STRV 4" - 10"
Model Series:
450STDA / STDAV 4" - 10"
Model Series:
450STDAR / STDARV 4" - 10"
Packing Slip Description:
WK 450ST 8-10"CK1&2/475 8"#2
UPC:
612052288208
Brand:
Zurn

Reference Manual

Repair Info

Model Group:
450ST / STV / STR / STRV 4" - 10"
Model Size:
8:8"
Model Size:
10:10"
Model Group:
450STDA / STDAV 4" - 10"
Model Group:
450STDAR / STDARV 4" - 10"