Griffco corporation stops (corp stops) are designed to ensure that chemical feed systems inject into the center of a process stream for better mixing and to prevent corrosion along the process pipe. They are also retractable and offer a ball valve to seal the process stream for servicing (when the process cannot be drained).
The integral check valve prevents the process fluid from going back up the chemical line. With limited seals and joints, this leak-free design is a sure fit for safety and long-life operation. Robust construction ensures reliability in the rigorous service of municipal and industrial applications.
Available Sizes
1/2″ to 1″ or DN 15 to DN 25
Corporation Stops
Features
- Compact assembly for easier access and positioning
- Sizes from 1/2″ to 1″ or DN 15 to DN 25
- Pressures up to 150 psi (10 bar)
- Integral check valve with Hast C Spring – Optional
- Multiple tip configurations (duckbill, 45°, flat)
- Seal options include EPDM and FKM (Viton®)
- Connection options include plastic union or threaded
- Fast and easy union disconnect for servicing
- SS limit chains (when inserted and retract length)
- Outer housing and valve material options include PVC, Brass, PVDF, CPVC,
and 316 SS - Optional secondary injection port
- Optional chemical line drain
- Custom quill lengths
- Lock-ready design for tamper-resistant safety
- Quill stiffener option for plastic construction
- Optional redundant quill lock
Griffco Benefits
- High reliability at an affordable price
- Robust, machined construction
- Wide range of wetted materials
Wetted Materials
Quill Materials
PVC
CPVC
PVDF
316L SS
Alloy 20
Hastelloy® C
Ball Valve Materials
Metal (316L SS, Alloy 20, and other alloys)
Brass
Plastics (PVC, CPVC, PVDF, and others)
Connections
Plastic Union Threaded
Union Socket
Options
Material Certifications for Metals
| TITLE | DESCRIPTION | DATE MODIFIED | DOWNLOAD |
Image | Product | Description | Add to Project |
|---|---|---|---|
 CSKC050KDQ | Kynar Quill with Check Valve Viton Seal & O-Rings – Poppet Tip – Kalrez Gasket | ||
CSKC050KE | Kynar Quill with Check Valve EPDM Seal & O-Rings | ||
CSKC050K8.5TCD | Kynar Quill with Check Valve Viton Seal & O-Rings – Teflon Coated Spring with Poppet | ||
 PT050CP | STop – Viton O-Ring | ||
PT050CPE | STop – EPDM O-Ring | ||
PT050P | STop – Viton O-Ring | ||
 CSPC050P1.5 | PVC Quill with Check Valve – Viton Seal & O-Rings** | ||
CSPC050P1 | Quill with Check Valve – Viton Seal & O-Rings** | ||
CSP050P10 | PVC Quill – Threaded Connection** | ||
CSP050P10L | PVC Quill – Threaded Connection – Beveled |