John Guest Drinks Grey Acetal Adaptor Male Thread NPTF
Technical Specification
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Materials:
- Body: Acetal Copolymer (Unfilled)
- O-Ring: Nitrile Rubber (Black)
- Collet: Acetal Copolymer (Unfilled)
- Collet Teeth: 301 Stainless Steel
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Working Pressure: 16 bar (7 bar at 65°C)
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Working Temperature: 1°C to 65°C
- Thread Type: Male US NPTF (National Pipe Taper Fuel)
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Tube Compatibility: LLDPE, polyethylene, nylon, polyurethane and soft metal tubes.
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Food-grade Material: Suitable for use with foodstuffs and potable liquids.
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Features: Instant push-fit leak-tight connection that is fully demountable.
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Manufacturing: Manufactured and assembled in the UK by John Guest.
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Approvals: WRAS approved and BSI Kitemark certified.
Description
Engineered for drinks dispense and water treatment systems, this push-fit adaptor enables a direct transition from imperial tubing to an imperial NPTF threaded connection. It provides a practical solution where tapered NPTF threads are required for connection to valves, regulators, manifolds or equipment with compatible ports.
Constructed from rigid grey acetal copolymer, the fitting delivers strength and durability in demanding commercial and industrial environments. The integrated nitrile O-ring ensures a dependable, leak-tight seal, while the stainless steel collet teeth grip the tube securely without deformation or flow restriction. This design supports consistent performance, improved flow characteristics and reduced scale build-up within the system.
Installation is straightforward and requires no specialist tools. The tube is simply pushed into place to create an instant, secure connection. The fitting remains fully demountable, allowing rapid disconnection and reconnection during servicing or system modifications. Suitable for potable liquids, food grade liquids, inert gases, air, pneumatic and vacuum applications, it can also be used with N2 and CO2 mixed gas dispense lines in accordance with the British Beer & Pub Association Code of Practice.
Key Features & Benefits
- Push-fit to NPTF conversion: Converts an imperial push-fit tube connection to an imperial NPTF threaded outlet for secure integration with compatible equipment.
- Durable acetal body: Rigid, hardwearing and corrosion resistant construction suited to commercial dispense and water treatment environments.
- Leak-tight performance: Nitrile O-ring and stainless steel collet teeth ensure a secure, reliable seal under pressure.
- Tool-free installation: Instant push-fit connection with no need for sealing agents, hot works or specialist tools.
- High working capability: Rated up to 16 bar for potable liquids, maintaining performance up to 65°C within stated limits.
- Broad media suitability: Suitable for potable liquids, food grade liquids, inert gases, air, pneumatic and vacuum systems.
Dimensions
| Product Code | Manufacturer Code | Size | A (Tube O/D) |
B | C | D | E | F | G |
| 381890 | PM010421S | 5/32" x 1/8" NPTF | 0.156" (3.97mm) |
0.56" (14.3mm) | 0.60" (15.1mm) | 0.38" (9.5mm) | 0.10" (2.5mm) | 9/16" (14.3mm) | 0.61" (15.4mm) |
| 381891 | PM010422S | 5/32" x 1/4" NPTF | 0.56" (14.3mm) | 0.60" (15.1mm) | 0.56" (14.3mm) | 0.10" (2.5mm) | 9/16" (14.3mm) | 0.61" (15.4mm) | |
| 381892 | PI010621S | 3/16" x 1/8" NPTF | 0.188" (4.76mm) | 0.56" (14.3mm) | 0.60" (15.1mm) | 0.37" (9.5mm) | 0.12" (3.0mm) | 9/16" (14.3mm) | 0.61" (15.4mm) |
| 381893 | PI010821S | 1/4" x 1/8" NPTF | 0.250" (6.35mm) |
0.62" (15.7mm) | 0.69" (17.5mm) | 0.37" (9.5mm) | 0.17" (4.4mm) | 0.67" (17.0mm) | 0.75" (19.1mm) |
| 381894 | PI010822S | 1/4" x 1/4" NPTF | 0.62" (15.7mm) | 0.54" (13.7mm) | 0.56" (14.3mm) | 0.17" (4.4mm) | 11/16" (17.5mm) | 0.75" (19.1mm) | |
| 381895 | PI010823S | 1/4" x 3/8" NPTF | 0.62" (15.7mm) | 0.54" (13.7mm) | 0.56" (14.3mm) | 0.17" (4.4mm) | 13/16" (20.6mm) | 0.89" (22.6mm) | |
| 381896 | PM010821S | 5/16" x 1/8" NPTF | 0.313" (7.94mm) |
0.66" (16.7mm) | 0.73" (18.5mm) | 0.38" (9.5mm) | 0.22" (5.5mm) | 11/16" (17.5mm) | 0.75" (19.1mm) |
| 381897 | PM010822S | 5/16" x 1/4" NPTF | 0.66" (16.7mm) | 0.55" (13.9mm) | 0.56" (14.3mm) | 0.22" (5.5mm) | 11/16" (17.5mm) | 0.75" (19.1mm) | |
| 381898 | PM010823S | 5/16" x 3/8" NPTF | 0.66" (16.7mm) | 0.55" (13.9mm) | 0.56" (14.3mm) | 0.22" (5.5mm) | 13/16" (20.6mm) | 0.89" (22.6mm) | |
| 381899 | PI011221S | 3/8" x 1/8" NPTF | 0.375" (9.53mm) |
0.78" (19.7mm) | 0.84" (21.2mm) | 0.43" (10.9mm) | 0.16" (4.1mm) | 13/16" (20.6mm) | 0.89" (22.6mm) |
| 381900 | PI011222S | 3/8" x 1/4" NPTF | 0.78" (19.7mm) | 0.84" (21.2mm) | 0.56" (14.3mm) | 0.25" (6.4mm) | 13/16" (20.6mm) | 0.89" (22.6mm) | |
| 381901 | PI011223S | 3/8" x 3/8" NPTF | 0.78" (19.7mm) | 0.68" (17.2mm) | 0.56" (14.3mm) | 0.25" (6.4mm) | 13/16" (20.6mm) | 0.89" (22.6mm) | |
| 381902 | PI011224S | 3/8" x 1/2" NPTF | 0.78" (19.7mm) | 0.57" (14.5mm) | 0.75" (19.0mm) | 0.31" (8.0mm) | 7/8" (22.2mm) | 0.96" (24.3mm) | |
| 381903 | PI011623S | 1/2" x 3/8" NPTF | 0.500" (12.70mm) |
0.91" (23.0mm) | 0.88" (22.3mm) | 0.56" (22.3mm) | 0.37" (9.4mm) | 1" (25.4mm) | 1.11" (28.3mm) |
| 381904 | PI011624S | 1/2" x 1/2" NPTF | 0.91" (23.0mm) | 0.71" (18.0mm) | 0.75" (19.0mm) | 0.38" (9.6mm) | 1" (25.4mm) | 1.10" (28.0mm) | |
| 381905 | PI012026S | 5/8" x 3/4" NPTF | 0.625" (12.70mm) | 1.20" (30.5mm) | 1.46" (37.0mm) | 0.71" (18.1mm) | 0.52" (13.2mm) | - | 1.10" (28.0mm) |
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