# Transfer Valve (TV)

> Fil-Trek Transfer Valves. Canonical page: https://www.fil-trek.com/products/transfer-valves

Category: Transfer Valves
Series: TV
Model format: `[BODY MOC][VALVE TYPE]-[INLET/OUTLET SIZE & STYLE]-[CONFIGURATION]-[PRESSURE CLASS]`
Example: `S4TV6-3F-A-PT2`

## Overview
Multi-port valve that directs fluid flow between multiple pipes using a single actuated device. Consolidates multiple valves into one unit, reducing connections, saving space, and ensuring only one flow path is active at a time to eliminate the risk of cross-flow.

## How It Works
Transfer valves manage uninterrupted fluid flow across duplex filtration and process systems. Using dual sealing pads, the valve shifts system flow from one active vessel to an alternate standby vessel without stopping the line.

Unseat: Turn the T-Handle CCW to unlock the valve, then push the Operating Handle downward to retract the Sealing Pads.

Transfer: Rotate the Operating Handle 180 degrees (A -> B or B -> A).

Reseat: Release the Operating Handle, turn the T-Handle CW until the Sealing Pads are firmly seated and the valve is locked in position.

3-Way: The valve provides a single flow path from Inlet Port to either Inlet A or Inlet B. Similar to a 3-Way L-Port ball valve.

6-Way: Combines the functionality of two 3-Way valves working in unison into one compact package. The internal Separator Plate divides the valves into separate upper and lower flow paths. Both paths shift simultaneously between the two port pairs.

## Applications
- Duplex Filtration Systems
- Duplex Heat Exchangers
- Lube Oil Systems
- Compressors and Gearboxes
- Oil & Gas Refineries
- Pulp & Paper Mills
- Marine & Power Generation

## Features
- Positive Mechanical Lockdown: Holds sealing pads securely without springs for reliable, leak-free shut-off.
- Pressure-Assisted Sealing: Increasing line pressure increases the sealing force, helping maintain reliable sealing performance. 
- Low-torque Design: Retracting pads eliminate seal drag and wear, delivering smooth, low torque operation that reduces operator effort.
- Compact Package: Space-saving design minimizes the installation footprint and provides improved operator access in space-constrained areas.
- Fabricated Steel Construction: Durable, pressure-resistant construction allows flexibility in sizes, port layouts, materials, and custom configurations.
- ASME Code-Compliant: Built to applicable ASME requirements for pressure-containing industrial service.
- Fully Serviceable: Internal sealing and operating components can be inspected and replaced without replacing the complete valve assembly.
- Drop-In Replacement: Designed to fit existing transfer valve installations, minimizing piping modifications and system downtime.
- Stainless Steel Internals: Enhanced resistance to corrosion and wear for reliable long-term service.

## Physical Specifications
- **inlet outlet size range:** Standard sizes: 1-1/2" to 6" (flanged)
- **design pressure note:** Up to 630 PSI @ 400°F (204°C)
- **ratings:** ASME Class 150, ASME Class 300
- **certifications:** ASME U, ASME UM, CE, NB, CRN
- **Available materials:** Carbon Steel, Stainless Steel 304 (SS304), Stainless Steel 316 (SS316)
- **connection options:** Flanged
- **equalizing line:** 3/8"
- **sealing pads:** Viton (400°F), Buna (225°F)
- **closure type:** Thru bolt closure, Thru bolts B7 CSYZP

## Competitor Cross-Reference
- HYCOA JR-33 Transfer Valves
- HICORP Transfer Valves
- KRAISSL Transfer Valves
- HILCO Transfer Valves

## Ordering
- Model format: `[BODY MOC][VALVE TYPE]-[INLET/OUTLET SIZE & STYLE]-[CONFIGURATION]-[PRESSURE CLASS]`
- Example: `S4TV6-3F-A-PT2`

### Body moc
- **(blank):** Carbon Steel
- **S4:** Stainless 304
- **S6:** Stainless 316

### Valve type
- **TV3:** 3-Way Transfer Valve
- **TV6:** 6-Way Transfer Valve

### Inlet/outlet size style
- **1.5F:** 1-1/2" Flanged
- **2F:** 2" Flanged
- **3F:** 3" Flanged
- **4F:** 4" Flanged
- **5F:** 5" Flanged
- **6F:** 6" Flanged

### Configuration
- **A:** Offset opposite side in/out
- **D:** Offset same side in/out
- **(blank):** TV3 standard configuration

### Pressure class
- **See Pressure Class Ratings Table**

## Contact
- **sales@fil-trek.com** — all filtration product inquiries, projects, filter housings, and filtration systems
- **filters@fil-trek.com** — replacement filter media, filter elements, filter bags, hardware, and spare parts

## Links
- HTML: https://www.fil-trek.com/products/transfer-valves
- Markdown: https://www.fil-trek.com/products/transfer-valves.md