Vahn-Tech DF Series square knife gate valve is mainly used as pneumatic on/off valve for process control in pulp making slurry or sewage treatment. It is particularly suitable to serve as a residue discharger on equipment such as stock cleaners, gravity separators and hydra pulper in the paper making industry.
Additional information
| Valve Size | 3" to 24" |
|---|---|
| Pressure Class Standard | MSS SP 81 |
| Pressure Class Range | 150 CWP |
| Body | 2-Piece Bolted |
| End Connections | Integral Flange |
| Face-to-Face Standard | MSS SP 81 |
| Bonnet | Yoke Arms |
| Packing | Transverse PTFE |
| Configuration | Low-Pressure Square Knife Gate |
| Trim | Knife Gate |
| Seat Type | Square Port |
| Seating | Soft, Metal |
| Shut-Off Classification | MSS SP 81 |
Features & Benefits
- Two-piece body construction with no cavities eliminates product build-up
- O-ring loaded removable seat is self-compensating with good abrasion resistance and long service life
- Internal packing and packing gland are internally loaded, ensuring a tight seal and preventing leakages
- Travel aligning block installed at the inlet of the body serves as a supportive force to regulate the flow of the accumulated medium between the gate and body cavity
- Seats are backed with an o-ring to give the seat a self-compensating wear function; this results in excellent seat tightness and prolonged life cycle
- Gate is designed with standard precision ground and hard plated chrome which provides superior abrasion and corrosion resistance
Standards & Certifications
| Certifications | Canadian Registration Number (CRN) |
|---|---|
| Design Standards | MSS SP 81 – Stainless Steel, Bonnetless, Flanged Knife Gate Valves |
| ASME B16.5 – Pipe Flanges & Flanged Fittings | |
| ASME SA Materials | |
| ASTM A Materials | |
| Quality | IS0 9001:2015 |
