Product

Lined Flush Bottom Valve

Lined flush bottom valves help ensure effective vessel draining while protecting wetted parts from corrosion and wear.

Tight shut-off Low maintenance Corrosion resistant

Product Overview

Application and service highlights

Introduction

Lined flush bottom valves are installed at the lowest point of reactors, vessels and tanks to allow near-complete draining of corrosive contents. Their configuration helps reduce product hold-up and supports safer discharge during batch processing and equipment cleaning.

Key Features

  • Designed for bottom outlet service on vessels and reactors.
  • Helps minimize residual product during draining operations.
  • Suitable for corrosive media where complete discharge is important.

Specifications

Material, dimensions and testing standards

Material

  • Valve Body: Robust metallic construction with corrosion resistant lining.
  • Seats & Seals: PTFE-based soft sealing elements for dependable shut-off.
  • Trim: Configured to suit process pressure and media compatibility.

Dimensions

  • Offered in standard line sizes for process and utility services.
  • Flanged drilling available to match common plant standards.
  • Compact face-to-face dimensions support retrofit installations.

Testing

  • Seat leak and shell testing before dispatch.
  • Lining continuity inspected with spark testing.
  • Operational cycling checked for smooth performance.

Technical Drawing

Cross-sectional reference

Lined Flush Bottom Valve technical drawing
Representative technical drawing. Detailed dimensions as per dimensional table.

Dimensional Specifications

Dimensional table

Size Diameter (D) Raised Face (R/F) P.C.D (K) Flange Thick. (T) No. of Holes (N) Hole Dia (B) Lining Thickness (±0.5mm) Length ± 5mm (Max L)
NB Inch
25 1" 33.7 50 79 15 4 15 3 600
40 1.5" 48.3 65 95 17 4 18 3 600
50 2" 60.3 80 127 19 4 19 3 500
80 3" 88.9 100 152 22 4 22 3 400
100 4" 114.3 125 178 24 8 22 3 300