Serie 4\" V4i 31

Summary

Product identification

This document describes the Knappe Pressure Vessels, specifically the 4-inch V4i Series with front entry.

Available vessel types and their nominal lengths:

• RO4Z1M14-V4i-31: 433 mm (17.05 inch)
• RO4Z1M21-V4i-31: 611 mm (24.06 inch)
• RO4Z1M40-V4i-31: 1093 mm (43.03 inch)
• RO4Z2M40-V4i-31: 2110 mm (83.07 inch)
• RO4Z3M40-V4i-31: 3127 mm (123.11 inch)
• RO4Z4M40-V4i-31: 4144 mm (163.15 inch)
• RO4Z5M40-V4i-31: 5161 mm (203.19 inch)
• RO4Z6M40-V4i-31: 6178 mm (243.23 inch)

Length tolerances are:

• -3/+5 mm (-0.12/+0.2 inch) for 1x14, 1x21, 1x40, 2x40 element configurations.
• -3/+6 mm (-0.12/+0.236 inch) for 3x40, 4x40, 5x40, 6x40 element configurations.

Operating limits

• Max. Working Pressure: 31 bar (450 PSI)
• Max. Working Temperature: 65 °C (150 °F)
• Min. Working Temperature: 2 °C (36 °F)
• Max. Test Pressure (ASMEX): 40.3 bar (585 PSI)
• Optional Feed/Brine Ports Pressure: Up to 21 bar (300 PSI) with Stainless Steel (SS) inserts.

Mechanical / hydraulic

General dimensions shown in diagrams:

• 116 mm (4.57 inch)
• 30 mm (1.18 inch)
• 10 mm (0.39 inch)
• 28 mm (1.10 inch)
• 135 mm (5.32 inch)
• LSatt: 6.5 mm (0.26 inch)
• An additional range of 150 - 300 mm is noted.

Materials of Construction:

• SHELL: FRP
• LINER: PVC
• GROOVERING: Alu
• ENDPLATE open: PPE
• ENDPLATE closed: PPE
• ELEMENT ADAPTER closed: PPE
• RETAINING RING: 316TI
• SCREW M6: 316TI
• O-RING: EPDM
• MOUNT (optional): PE

Ports:

• HP-PORT (optional)
• PERMEATE PORT (optional)
• Optional Feed/Brine ports are available.
• Permeate optional port: G3/4in cylindrical (different styles available).
• Ports in the endplate: G3/4in cylindrical, G1/2in cylindrical (different styles available), DN16/PN16 (different styles available).
• Recommendation: Do not use tapered fittings for HP and Permeate ports in the endplate.

Mounting Recommendations (Mounts are optional and not included in vessel supply):

• 1 to 3 elements: 2 Mounts
• 4 to 6 elements: 3 Mounts

Disclaimer: This summary is based on the provided text extract and may not include all figures, footnotes, or the latest revisions found in the official PDF datasheet. For contractual data, always refer to the specific OEM PDF revision used on your project.

Official datasheet (PDF)

PDF datasheet