ASC
Sanitary Stainless Butterfly Valves
- SKU:
- S77
- Availability:
- Usually Ships Same Day
- Weight:
- 0.00 LBS
Description
Sanitary Stainless Butterfly Valves
SCI Series 77 Sanitary Stainless Butterfly Valves provide compact quarter-turn flow control for sanitary and hygienic process piping systems using clamp-end connections.
Constructed with a 304 stainless steel precision-milled body, these valves feature a tube full-port design, fully machined and polished disc, hygienic seating design, and clamp ends for integration into compatible sanitary piping systems.
This sanitary butterfly valve does not include an operating handle. A compatible handle must be ordered separately. Need one? Check out our Stainless Steel 11-Position Valve Handle using the link below.
Shop Stainless Steel 11-Position Valve HandleProduct Highlights
- SCI Series 77 sanitary butterfly valve
- 304 stainless steel construction
- Stainless steel precision-milled body
- Tube full-port design
- Sanitary clamp-end connections
- Pressure rating up to 150 PSI
- Temperature rating up to 200°F
- Fully machined and polished disc
- Hygienic seating design
- Available seat materials include EPDM, Silicone, and Viton
- Quarter-turn butterfly valve operation
- Operating handle is not included and must be ordered separately
Technical Specifications
| Product Type | Sanitary Butterfly Valve |
|---|---|
| Brand | SCI |
| Series | Series 77 |
| Body Material | 304 Stainless Steel |
| Body Construction | Precision-Milled Stainless Steel |
| Connection Type | Sanitary Clamp Ends |
| Port Design | Tube Full Port |
| Maximum Pressure | Up to 150 PSI |
| Maximum Temperature | Up to 200°F |
| Available Seat Materials | EPDM, Silicone & Viton |
| Disc | Fully Machined & Polished |
| Seating Design | Hygienic |
| Handle | Not Included – Sold Separately |
| Typical Applications | Sanitary & Hygienic Process Piping Systems |
Construction Details
The SCI Series 77 sanitary butterfly valve uses a 304 stainless steel precision-milled body designed for compatible sanitary process piping systems.
The valve incorporates a fully machined and polished disc along with a hygienic seating design. Available seat materials include EPDM, Silicone, and Viton, allowing the appropriate valve configuration to be selected according to compatible process and operating requirements.
Each valve body is identified by SCI with the logo, material grade, size, heat number, and country of origin engraved on the body.
Sanitary Clamp-End Design
Clamp-End Connections
The valve uses sanitary clamp ends for connection between compatible sanitary ferrules using the appropriate gasket and clamp assembly.
Serviceable Installation
The clamp-end arrangement allows the valve to be removed from compatible sanitary piping when required for inspection, cleaning, seat service, or system maintenance.
Tube Full-Port Flow
The Series 77 uses a tube full-port configuration designed for sanitary process piping. The butterfly disc rotates within the flow path to provide quarter-turn opening and closing while maintaining a compact valve body.
This design provides a practical combination of sanitary construction, compact installation, and straightforward manual flow control when paired with the appropriate operating handle.
Hygienic Seating Design
The Series 77 incorporates a hygienic seating design intended for compatible sanitary processing applications. The valve seat surrounds the disc and provides the sealing interface when the valve is placed in the closed position.
SCI identifies EPDM, Silicone, and Viton as available seat materials. Select the appropriate seat based on the intended process media, temperature, cleaning requirements, and system conditions.
11-Position Handle Option
Adjustable Valve Positioning
An 11-position handle provides multiple manual positioning points rather than limiting the operator to only fully open and fully closed positions.
Order Separately
The operating handle is not included with this valve listing. Be sure to order the appropriate compatible handle separately when a handle is required for your installation.
Typical Applications
Sanitary Process Systems
- Sanitary process piping
- Hygienic fluid-transfer systems
- Process equipment piping
- Stainless steel sanitary lines
- Compatible clamp-end systems
Process Flow Control
- Manual process isolation
- Equipment inlet and outlet lines
- Process transfer lines
- Sanitary piping assemblies
- Compatible hygienic processing systems
Installation & Selection Considerations
- Remember that the operating handle is not included with this valve and must be ordered separately.
- Confirm the sanitary clamp-end requirements and select a compatible operating handle before ordering.
- Verify that the applicable pressure and temperature requirements fall within the valve's documented ratings of up to 150 PSI and 200°F.
- Select the appropriate EPDM, Silicone, or Viton seat configuration based on process-media and operating requirements.
- Use compatible sanitary gaskets and clamps and inspect the valve, disc, seat, and connection surfaces before installation.

Use the SCI Sanitary Fittings & Tubing Catalog to review Series 77 butterfly valve construction, clamp-end configuration, pressure and temperature ratings, seat materials, handle options, and other sanitary product information before ordering.
SCI Sanitary Fittings & Tubing PDFNeed Help Selecting a Sanitary Butterfly Valve?
Our sanitary valve and industrial product specialists can help review your clamp-end requirements, seat material, pressure and temperature requirements, process application, and compatible handle selection before you order.
Don't forget: This valve does not include a handle. If you need one, check out the Stainless Steel 11-Position Valve Handle.
Frequently Asked Questions
Does this sanitary butterfly valve include a handle?
No. The operating handle is not included with this valve and must be ordered separately.
Where can I get a handle for this valve?
GetPipe.com offers a Stainless Steel 11-Position Valve Handle separately. Use the handle link provided in this product description to review the handle listing.
What material is the valve body?
The SCI Series 77 sanitary butterfly valve uses a 304 stainless steel precision-milled body.
What type of connections does the valve use?
The Series 77 uses sanitary clamp-end connections.
What is the pressure rating?
SCI identifies the Series 77 butterfly valve as rated for pressure up to 150 PSI.
What is the temperature rating?
SCI identifies a temperature rating up to 200°F for the Series 77 butterfly valve.
What seat materials are available?
The supplied SCI catalog identifies EPDM, Silicone, and Viton as available seat materials.
How does a sanitary butterfly valve operate?
A butterfly valve uses a rotating disc within the flow path. Turning the valve stem rotates the disc to open, close, or position the valve.
What does tube full port mean?
SCI identifies the Series 77 as a tube full-port sanitary butterfly valve designed for integration into compatible sanitary process piping.
What should I verify before ordering?
Confirm the clamp-end configuration, seat material, operating pressure, temperature, process compatibility, and the compatible operating handle required for your installation.
Important Ordering & Installation Notes
- Operating handle is not included with this sanitary butterfly valve.
- A compatible handle must be ordered separately when required for manual valve operation.
- GetPipe.com offers a Stainless Steel 11-Position Valve Handle separately for compatible applications.
- Verify clamp-end compatibility, seat material, pressure, temperature, and process requirements before ordering.
- Review the supplied SCI Sanitary Fittings & Tubing Catalog for manufacturer Series 77 product information.