6 Inch Clay to 4 Inch PVC Flexible Connector 170–192mm / 110–122mm | VIPSeal | VAC1922

Description

The VIPSeal VAC1922 flexible connector is a heavy-duty 6 inch clay to PVC connector for joining compatible larger drainage pipe to modern 110mm PVC-U underground drainage. This 170-192mm to 110-122mm adaptor provides a practical 110mm PVC drainage adaptor and durable EPDM clay pipe adaptor for underground drainage repairs, alterations and replacement work. VIPSeal manufactures VAC1922 as part of its step-moulded VAC adaptor coupling range. The larger connection accepts pipe outside diameters from 170mm to 192mm, while the smaller connection accepts pipes from 110mm to 122mm.

VIPSeal VAC1922 Flexible Connector

The VIPSeal VAC1922 flexible connector is the genuine manufacturer reference for the 170–192mm / 110–122mm model within the VIPSeal VAC adaptor range. The VIPSeal VAC1922 flexible connector is specifically designed to bridge a significant difference in pipe outside diameter using a stepped EPDM rubber body with independently tightened stainless-steel tension bands.

Choosing the VIPSeal VAC1922 Flexible Connector

Choose the VIPSeal VAC1922 flexible connector where the larger pipe measures between 170mm and 192mm outside diameter and the smaller pipe measures between 110mm and 122mm. Always measure both pipe outside diameters before ordering. Nominal descriptions such as 6 inch, 4 inch, 150mm and 110mm should not replace an actual O/D measurement.

Installing the VIPSeal VAC1922 Flexible Connector

Before fitting the VIPSeal VAC1922 flexible connector, expose sound sections of both pipes and clean away soil, grit and loose material. Position the adaptor centrally across the joint and tighten the stainless-steel tension bands evenly to the manufacturer’s specified torque of 6Nm.

6 Inch Clay to PVC Connector

VAC1922 is commonly used as a 6 inch clay to PVC connector where older 150mm vitrified clay drainage needs to connect into compatible 110mm PVC-U underground drainage pipe. A 6 inch clay to PVC connector is useful because nominal clay and plastic pipe sizes can have substantially different outside diameters even when they form part of the same drainage system.

6 Inch Clay to PVC Connector Applications

The 6 inch clay to PVC connector is particularly useful when repairing older underground drainage and introducing modern PVC-U replacement pipework. VIPSeal also lists other compatible larger-side pipe materials for VAC1922, so selection should ultimately be based on measured outside diameter rather than pipe material alone.

170-192mm to 110-122mm Adaptor

The 170-192mm to 110-122mm adaptor has two clearly defined manufacturer connection ranges:

• Larger pipe outside diameter: 170–192mm
• Smaller pipe outside diameter: 110–122mm
• Overall coupling width: 120mm
• Coupling thickness: 8.5mm

The stepped body of the 170-192mm to 110-122mm adaptor enables pipework with significantly different external diameters to be connected within a single flexible fitting.

Selecting a 170-192mm to 110-122mm Adaptor

Both pipes must fall within their respective manufacturer ranges. If either measurement falls outside the stated dimensions, another VAC adaptor size should be selected rather than attempting to stretch or over-compress VAC1922.

110mm PVC Drainage Adaptor

The 110–122mm smaller connection makes VAC1922 particularly useful as a 110mm PVC drainage adaptor for modern underground drainage pipework. A 110mm PVC drainage adaptor of this type is commonly required where damaged older drainage is being repaired or replaced using modern PVC-U pipe.

110mm PVC Drainage Adaptor Applications

The 110mm PVC drainage adaptor can be used on suitable foul-water and surface-water drainage systems where both pipe measurements fall within the published VAC1922 ranges.

EPDM Clay Pipe Adaptor

VIPSeal manufactures VAC adaptor couplings from high-grade EPDM rubber, making VAC1922 a robust EPDM clay pipe adaptor for suitable underground drainage connections. The stepped EPDM clay pipe adaptor conforms around compatible pipe surfaces while stainless-steel tension bands provide independent mechanical compression at each end.

EPDM Clay Pipe Adaptor Construction

The standard VIPSeal VAC specification uses EPDM rubber with 1.4301 / 304 stainless-steel hardware. VIPSeal also identifies 1.4401 / 316 stainless steel within the wider product specification for specialist requirements.

Common Larger Pipe Applications

VIPSeal’s published VAC1922 application data includes compatible larger pipework such as:

• 150mm vitrified clay pipe
• 150mm Supersleve
• 150mm Ultra-Rib
• 150mm ductile iron
• 150mm cast iron drainage pipe
• 150mm asbestos cement pipe
• 150mm pitch fibre pipe
• 150mm twin-wall plastic pipe

These are common applications rather than substitutes for measuring the pipe. The larger pipe must still fall within the 170–192mm O/D range.

Common Smaller Pipe Applications

VIPSeal specifically lists 110mm PVC-U among the common smaller-side applications for VAC1922. The smaller pipe must measure between 110mm and 122mm outside diameter to sit within the manufacturer’s published range.

6Nm Tightening Torque

VIPSeal specifies a tightening torque of 6Nm for VAC adaptor couplings within the VAC1922 size range. Using an appropriate torque-controlled tool helps provide consistent compression around both pipe connections.

0.6 Bar Pressure Rating

The VIPSeal VAC range has a manufacturer pressure rating of 0.6 bar / 8.7psi. VAC1922 is therefore designed for suitable drainage and low-pressure applications rather than general high-pressure pipework.

120 Bar Jetting Resistance

VIPSeal specifies a 120 bar jetting resistance for the VAC adaptor coupling range. This relates to resistance during drainage jetting and should not be confused with the 0.6 bar internal working-pressure rating.

Working Temperature Range

The published constant working temperature range for VIPSeal VAC adaptor couplings is -10°C to +60°C.

Underground Drainage Repair Applications

The VIPSeal VAC1922 flexible connector is useful for applications including:

• 6 inch clay to 4 inch PVC drainage connections
• 150mm vitrified clay to 110mm PVC-U
• Underground drainage repairs
• Replacing damaged sections of older clay drainage
• Foul-water drainage alterations
• Surface-water drainage alterations
• Connecting pipes with significantly different outside diameters
• Joining compatible pipes manufactured from different materials

VAC1922 vs VAC1924

VAC1922 and VAC1924 share the same 170–192mm larger connection but have very different smaller connection ranges:

• VAC1922: 170–192mm / 110–122mm
• VAC1924: 170–192mm / 144–160mm

VAC1922 is therefore the appropriate option where the smaller pipe is compatible 110mm PVC-U, while VAC1924 is intended for significantly larger smaller-side pipework.

VIPSeal VAC Adaptor Standards

The VIPSeal VAC product specification references EN681-1, EN295-4, MPA, VA and WSSA AS/NZS 4237. For applications requiring WIS 4-41-01, VIPSeal advises using an appropriate Standard Coupling and bush rather than a VAC adaptor coupling.

VIPSeal VAC1922 Flexible Connector Key Features

• Genuine VIPSeal VAC1922
• Flexible stepped adaptor coupling
• Larger pipe O/D: 170–192mm
• Smaller pipe O/D: 110–122mm
• Common application: 6 inch clay to 4 inch / 110mm PVC
• Overall width: 120mm
• Coupling thickness: 8.5mm
• EPDM rubber construction
• 304 stainless-steel hardware as standard
• 6Nm tightening torque
• 0.6 bar / 8.7psi pressure rating
• 120 bar jetting resistance
• -10°C to +60°C working temperature

Shop Flexible Drainage Connectors

Browse our Flexible Connectors range for flexible adaptor couplings, straight couplings, end caps and specialist underground drainage fittings. For manufacturer specifications, see the official VIPSeal VAC Adaptor Couplings information. The VIPSeal VAC1922 flexible connector provides a dependable 6 inch clay to PVC connector using a 170-192mm to 110-122mm adaptor configuration, making it a practical 110mm PVC drainage adaptor and robust EPDM clay pipe adaptor.