GALA Gate Valve DZR Brass PN20 WRAS 3103-V
High-specification pipeline component engineered primarily for water isolation, HVAC systems, and potable water applications.
Manufactured by Gala RS INC., this specific model is a non-rising stem wedge gate valve constructed from specialized dezincification-resistant (DZR) brass.
20.00
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Core Technical Specifications
The model suffix and rating break down into these industrial performance metrics
Material: DZR Brass (Dezincification Resistant).
This premium alloy prevents zinc from leaching out of the metal when exposed to aggressive water conditions, preventing structural porosity and long-term joint failure.
Pressure Rating: PN20. It is rated for a maximum internal working pressure of 20 bar (approximately 290 PSI) under normal temperature conditions.
Compliance: WRAS Approved (Water Regulations Approval Scheme).
This certification guarantees that the valve's non-metallic components (like its PTFE seats and washers) will not contaminate public drinking water supply systems.
Design Configuration: Model 3103-V utilizes a non-rising spindle (stem) configuration.
This ensures that the handwheel remains at a fixed height during operation, saving vertical space in tight ceiling voids or compact utility plumbing manifests.
End Connections: Female parallel or tapered screw threads (BSPT/ISO 7-1 standard).
Operational Constraints
When used in a WRAS-approved potable water pipeline, the maximum continuous operating temperature is capped at 85°C to 100°C, depending on local authority enforcement, even though the structural brass can tolerate up to 180°C for non-potable closed HVAC fluid loops
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