ZOLOTO · BALANCING VALVES
Zoloto Double Regulating Balancing Valves – Bronze Screwed & Cast Iron Flanged, PN 16
Zoloto double regulating balancing valves (1087 & 1087A) for HVAC water systems. Bronze screwed & CI flanged, PN 16. Buy from PC Engineering India.
Overview
Zoloto Double Regulating Balancing Valves (Models 1087 and 1087A) are designed for precise flow regulation and hydronic balancing in closed-loop water systems. These valves enable plant engineers to commission HVAC and chilled water circuits efficiently, ensuring optimal distribution across all branches while reducing energy consumption.
The 1087 series features a bronze body with screwed female ends, suited for smaller pipelines (15mm to 50mm). The 1087A series is a cast iron flanged variant designed for larger line sizes (65mm to 300mm). Both models incorporate a tamper-proof lock shield mechanism to prevent unauthorized adjustment after commissioning, along with inlet/outlet pressure test nozzles for differential pressure measurement.
These valves comply with BS 7350 design standards and are built for water service applications in heating, ventilation, air conditioning, and industrial process cooling systems.
Key Features
- Precise double regulation with tamper-proof lock shield setting
- Inlet and outlet pressure test nozzles for on-site flow measurement
- PTFE sealing disc (bronze screwed) / EPDM rubber seat (CI flanged) for reliable shut-off
- Turn indicator on handwheel assists in balancing multiple circuits
- Low noise flow characteristics
- Screwed ends to IS 554 / BS 21 / ISO 7 (Model 1087)
- Flanged ends to BS 4504 PN 16 (Model 1087A)
- Unbreakable nylon handwheel (1087) / cast iron handwheel (1087A)
Specifications
| Parameter | Value |
|---|---|
| Body Material | Bronze (IS 318 Gr. LTB2) |
| Stem / Internals | Brass (IS 319 Gr. 2) |
| Disc Facing | PTFE (25mm and above) / Brass (15mm, 20mm) |
| End Connection | Screwed Female – IS 554 / BS 21 / ISO 7 |
| Pressure Rating | PN 16 (Max. Operating: 16 bar / 230 psig) |
| Test Pressure (Shell) | 24 bar (350 psig) |
| Temperature Range | -10°C to +85°C |
| Sizes Available | 15mm, 20mm, 25mm, 32mm, 40mm, 50mm |
| Design Standard | BS 7350 |
| Parameter | Value |
| Body Material | Cast Iron (IS 210 Gr. FG 200) |
| Stem | Stainless Steel (ASTM A276 Type 410) |
| Disc Facing | EPDM Rubber (IS 5192-1) |
| End Connection | Flanged – BS 4504 Section 3.2 PN 16 |
| Pressure Rating | PN 16 (Max. Operating: 16 bar at 45°C ambient) |
| Test Pressure (Shell) | 24 kg/cm²g (340 psig) |
| Max. Working Temperature | 110°C |
| Sizes Available | 65mm, 80mm, 100mm, 125mm, 150mm, 200mm, 250mm, 300mm |
| Design Standard | BS 7350 |
Applications
- Chilled water and hot water circuits in HVAC systems - Heating and cooling coil balancing - Fan coil unit and air handling unit supply lines - Industrial process cooling loops - Building management systems requiring precise flow control - District cooling and central plant water distribution
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