International Valve CORP
Doing business as Check-all Valve Mfg. CO.
At a glance
Employees20-99
In business since1987
Industry
HeadquartersWest Des Moines, IA
US patents4
SAM.gov UEIL6MKN1MRLPY8
CAGE code28396
Incorporated inIA
- full service valve series
- express line
- epic series
- Available materials
- informational videos
- 3D drawing downloads
- Seat material
- cracking pressure options
Named on the company’s own website, read JUL 29, 2026
CareersCareers page — seen SEP 8, 2026
Supplier designations
For Profit OrganizationManufacturer of GoodsSubchapter S Corporation
Self-certified by the company in its SAM.gov registration
Patents
4 US patents granted 1991–2018, none of them in the five years to SEP 2025.
Mechanical elements 4
- Check valve having a friction free replaceable valve insert check assemblyUS 9,885,422 · granted FEB 6, 2018
- Check valveUS 6,152,171 · granted NOV 28, 2000
- Check valveUS 6,039,073 · granted MAR 21, 2000
- Valve and pipe coupling assemblyUS 5,033,503 · granted JUL 23, 1991
Granted to International Valve Corporation, Check-all Valve Mfg. Co. · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| International Valve CORP | West Des Moines | IA | 20–99 | ACTIVE |
Compiled from federal records — EPA, OSHA, SAM.gov and the U.S. Census — and from the company’s own website. Federal source data is public domain. Each plant’s page names the source of every field.