Sanitary Tank Bottom Diaphragm Valve
- Model:
- Place of Origin:
- Wenzhou, China
- Packing:
- Suitable Packing for Sea/Air Transport
- Payment:
- T/T, L/C, Western Union
A sanitary tank bottom valve is fitted at the lowest point of a vessel to control product discharge, while a four-way clamp plug valve redirects flow between connected ports. These designs serve different process functions and should not be treated as interchangeable. The listed four-way valve uses an SS316L stainless steel body and PTFE sealing for manual switching of sample and buffer lines in chromatography systems.
Four Port Alignment for Sample and Buffer Switching
A four-way plug valve changes the connection between ports as the internal plug rotates. Its flow path must match the intended routing sequence, so port numbering, handle positions, and pipeline direction should be checked against the valve drawing before installation.
The listed configuration covers 1/4–1/2-inch connections, with a maximum pressure of 10 bar and a stated working temperature of −10°C to +150°C. These limits should be confirmed against the selected configuration and actual process conditions.
Choosing the Valve Function for Each Connection
| Process Requirement | Appropriate Design Focus | Pre-installation Check |
|---|---|---|
| Vessel discharge | Bottom-mounted outlet and drainability | Confirm tank interface and remaining product volume. |
| Sample or buffer routing | Multiport alignment and switching sequence | Match port positions to the process flow diagram. |
| Line cleaning | Cleanable internal passages | Verify the cleaning cycle and seal compatibility. |
| Maintenance access | Seal inspection and assembly clearance | Check removal space and replacement procedures. |
A tank bottom diaphragm valve is generally selected for vessel drainage, with attention to seat geometry, product hold-up, and hygienic installation at the vessel outlet. A four-way plug valve instead serves a routing function and does not replace a dedicated tank discharge valve.
SS316L Construction and Cleaning Conditions
The stainless steel body provides corrosion resistance in suitable process environments, while the PTFE seal must remain compatible with the fluid and cleaning chemistry. The listed product description states that the valve can be used for CIP and SIP, but the actual cleaning procedure must remain within the verified temperature and material limits.
Before ordering, the port diagram, clamp dimensions, operating pressure, seal specification, and cleaning conditions should be confirmed for the exact model. These checks reduce routing errors and support reliable operation in hygienic process systems.
Product Description
| Name: | Sanitary four way plug valve |
| Body Material: | AISI316L |
| Sealing Material: | PTFE |
| Size: | 1/4"-1/2" or as required |
| Max pressure: | 10 Bar |
| Working temp: | -10°C to +150°C |
