Description
Crane D171A DZR Brass Ball Valve
WRAS Approved PN25 DZR Brass Ball Valve for Potable Water & HVAC Applications
The Crane D171A DZR Brass Ball Valve is a premium PN25 full-port quarter-turn isolation valve specifically designed for potable water, commercial plumbing, and HVAC systems. Manufactured from Dezincification Resistant (DZR) Brass, the D171A provides superior corrosion resistance compared with conventional brass valves, making it ideal for domestic water distribution, heating, chilled water, and public health installations.
The valve combines lightweight construction, low operating torque, and bubble-tight shut-off with WRAS approval, ensuring compliance with drinking water regulations while delivering long-term reliability in demanding building service applications.
Key Features
- Full-port DZR brass ball valve
- Pressure rating: PN25
- Size range: 1/4″ to 2″
- WRAS approved for potable water
- Quarter-turn operation
- Full-bore design for minimum pressure loss
- DZR brass body for excellent corrosion resistance
- Chrome-plated brass ball
- PTFE seats for leak-tight sealing
- Blow-out proof stem
- BSP taper threaded ends to BS EN 10226-2 (ISO 7-1)
- Compact, lightweight construction
- BIM models and engineering documentation available.
Benefits
Superior Corrosion Resistance
Unlike conventional brass valves, the D171A uses Dezincification Resistant (DZR) brass, providing excellent protection against dezincification and extending service life in potable water and HVAC systems.
WRAS Approved
The D171A is certified by the Water Regulations Advisory Scheme (WRAS), making it suitable for drinking water installations and public health plumbing projects throughout the UK and many international specifications.
Full-Port Flow Design
The full-bore ball minimizes pressure loss and maintains excellent flow characteristics, helping improve hydraulic efficiency throughout the system.
Reliable Shut-Off
PTFE seats and a precision-machined chrome-plated brass ball provide dependable bubble-tight isolation with very low operating torque.
Easy Installation
Its compact body and threaded BSP connections allow quick installation in confined plant rooms, risers, valve cabinets, and mechanical service spaces.
Typical Applications
The Crane D171A is ideal for:
- Potable water systems
- Domestic hot water (DHW)
- Cold water distribution
- HVAC heating systems
- Chilled water systems
- Commercial plumbing
- Hospitals
- Hotels
- Schools and universities
- Office buildings
- Residential developments
- Mechanical plant rooms
- Industrial utility water services.
Technical Specifications
| Specification | Value |
|---|---|
| Brand | Crane Fluid Systems |
| Model | D171A |
| Product Type | DZR Brass Ball Valve |
| Valve Type | Full-Port Quarter-Turn Ball Valve |
| Size Range | 1/4″ – 2″ |
| Pressure Rating | PN25 |
| Body Material | DZR Brass |
| Ball Material | Chrome-Plated Brass |
| Seat Material | PTFE |
| Stem Design | Blow-Out Proof |
| End Connection | BSP Taper Threaded to BS EN 10226-2 (ISO 7-1) |
| Operation | 90° Lever Handle |
| Approval | WRAS Approved |
| BIM Models | Available |
| Applications | Potable Water, HVAC, Plumbing, Industrial Water Systems |
Why Choose the Crane D171A?
The Crane D171A is the preferred choice where water quality, durability, and reliable isolation are essential. Its DZR brass construction offers enhanced resistance to corrosion and dezincification, while the WRAS approval ensures compliance for potable water applications. Combined with a PN25 pressure rating, full-port flow path, and maintenance-free operation, the D171A delivers dependable performance in commercial buildings, hospitals, hotels, educational facilities, and industrial HVAC systems. Engineers and contractors also benefit from the availability of BIM models and comprehensive technical documentation, making specification and installation straightforward.
