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John Guest Shut Off Valve (Long Handle) 3/8" Push Fit - PISV0412S

SKU: PISV0412S
Regular price £14.00
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John Guest Shut Off Valve (Long Handle) 3/8" Push Fit – PISV0412S

The John Guest PISV0412S Shut Off Valve is a high-quality 3/8" push-fit isolation valve featuring an extended handle for quick and easy operation. Designed for fast isolation of appliances, equipment and individual sections of pipework, the valve uses a simple ¼-turn on/off action and incorporates a full-bore flow path for excellent flow characteristics. 

Manufactured from durable grey acetal with nitrile O-rings, the PISV0412S provides an instant, leak-tight push-fit connection without tools, hot works or sealing compounds. John Guest's collet design securely grips the tubing without deforming it or unnecessarily restricting flow, while the fitting remains fully demountable for straightforward servicing and maintenance. 

Key Features

  • John Guest part number: PISV0412S
  • Connections: 3/8" Push Fit × 3/8" Push Fit
  • Long handle for easy operation
  • Simple ¼-turn isolation
  • Full-bore valve mechanism
  • Durable acetal construction
  • Nitrile O-ring seals
  • Instant push-fit connection
  • Fully demountable and reusable
  • No tools or sealing compounds required
  • Corrosion-resistant construction
  • Compatible with suitable LLDPE plastic tubing and soft metal tubing
  • WRAS and BSI accredited
  • Manufactured and assembled in the UK
  • 2-year manufacturer's guarantee 

Suitable Applications

The John Guest PISV0412S is suitable for a wide range of fluid and pneumatic applications, including:

  • Drinking water and potable liquids
  • Water treatment and filtration systems
  • Reverse osmosis equipment
  • Brewing and drinks dispense systems
  • Foodstuff applications
  • Compressed air
  • Vacuum
  • Inert gases such as nitrogen and CO₂ 

Easy Push-Fit Installation

Simply push compatible 3/8" OD tubing fully into each end of the valve to create a secure connection. The valve can subsequently be disconnected and reconnected without specialist tools, helping reduce maintenance time when equipment requires servicing. 

Important: This valve is designed as an isolation valve and should be operated in the fully open or fully closed position. It should not be used partially open as a flow-control valve, as a permanent pipe termination or as a tap/faucet. 

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Frequently Asked Questions

What are the main advantages of the John Guest Shut Off Valve for my plumbing system?
The John Guest Shut Off Valve offers quick installation with its push fit connection, easy operation thanks to its long handle design, and durable materials for long-lasting performance. It provides precise control over water flow and is versatile for various plumbing applications.
How easy is it to install the John Guest Shut Off Valve?
This valve features a 1/2" push fit connection, enabling quick and secure installation without the need for special tools or fittings. Its design simplifies setup, making it suitable for both professionals and DIY enthusiasts.
Can I use the John Guest Shut Off Valve in both residential and commercial plumbing systems?
Yes, the John Guest Shut Off Valve is designed for versatile use in residential, commercial, and industrial systems, providing reliable water flow control across different settings.
What materials is the John Guest Shut Off Valve made of, and how does this affect its durability?
The valve is built with durable and reliable materials, which ensure long-lasting performance and consistent operation even under frequent use or challenging conditions.
How does the long handle design improve the operation of the John Guest Shut Off Valve?
The long handle design enhances ease of use by making it simpler to open and close the valve, offering better leverage and control for smooth and effortless operation.