ZOLOTO · PRESSURE REDUCING VALVES
Zoloto 1040A & 1040B Compact Pressure Reducing Valves – Bronze & Forged Brass PRV
Zoloto 1040A/1040B pressure reducing valves for water systems. Bronze & forged brass PRV, 25 bar inlet, screwed ends. Available at PC Engineering India.

Overview
The Zoloto 1040A and 1040B are compact, self-operated pressure reducing valves (PRVs) designed for water service applications in industrial and commercial facilities. These valves automatically reduce high upstream pressure to a stable, lower downstream pressure without requiring any external power source.
The 1040A variant features a bronze body (IS 318 Gr. LTB 2), while the 1040B is constructed from forged brass (IS 6912 Gr. FLB), offering enhanced durability. Both models use hot brass forged trim components, ensuring reliable performance under demanding conditions. The screwed female ends conform to IS 554/BS 21/ISO 7 standards for easy integration into existing piping systems.
These PRVs are engineered for sensitive fluid regulation where consistent outlet pressure is critical. A 1/4" BSP tapping is provided for pressure gauge installation, allowing operators to monitor downstream pressure continuously.
Key Features
- Self-operated design — no external energy source required
- Compact construction for easy installation in confined spaces
- Hot brass forged trim components for extended service life
- Screwed female ends to IS 554/BS 21/ISO 7
- 1/4" BSP pressure gauge connection for outlet pressure monitoring
- Food-grade nitrile rubber O-rings for safe water handling
- Virtually noiseless operation
- Low maintenance requirements
Specifications
| Parameter | Value | ||||
|---|---|---|---|---|---|
| Maximum Upstream Pressure | 25 bar | ||||
| Hydrostatic Test Pressure (Shell) | 35 bar | ||||
| Maximum Working Temperature | 90°C | ||||
| Minimum Outlet Pressure (at 25 bar inlet) | 5.5 bar | ||||
| Suitable Medium | Water | ||||
| End Connection | Screwed Female (IS 554/BS 21/ISO 7) | ||||
| Size (Inches) | Size (mm) | A ±1.5 (mm) | B | C Max. (mm) | D ±10 (mm) |
| 2½ | 65 | 135 | 2½" | 160 | 97 |
| 3 | 80 | 160 | 3" | 170 | 111 |
| 4 | 100 | 160 | 4" | 185 | 125 |
| Size (Inches) | Size (mm) | A ±1.5 (mm) | B | C Max. (mm) | D ±10 (mm) |
| ½ | 15 | 62 | ½" | 88 | 64 |
| ¾ | 20 | 62 | ¾" | 88 | 64 |
| 1 | 25 | 86 | 1" | 105 | 71 |
| 1¼ | 32 | 91 | 1¼" | 110 | 75 |
| 1½ | 40 | 91 | 1½" | 110 | 75 |
| 2 | 50 | 91 | 2" | 115 | 82 |
| Component | 1040A (Bronze) | 1040B (Forged Brass) | |||
| Body | Bronze IS 318 Gr. LTB 2 | Forged Brass IS 6912 Gr. FLB | |||
| Bonnet | Bronze IS 318 Gr. LTB 2 | Forged Brass IS 6912 Gr. FLB | |||
| Piston | Bronze IS 318 Gr. LTB 2 | Forged Brass / Bronze | |||
| Disc | Nitrile Rubber IS 5192-1 | Nitrile Rubber IS 5192-1 | |||
| Spring | Spring Steel EN 47 Gr. B | Spring Steel EN 47 Gr. B | |||
| O-Rings | Nitrile Rubber IS 5192-1 | Nitrile Rubber IS 5192-1 |
Applications
Zoloto 1040A and 1040B pressure reducing valves are suitable for:
- Industrial water supply systems requiring stable downstream pressure - Boiler feed water systems - HVAC installations - Process water lines in manufacturing plants - Building services and plumbing mains - Cooling water circuits - Fire protection systems (where approved)
Industries: Textile mills, pharmaceutical plants, food & beverage processing, chemical plants, power stations, commercial buildings, and general manufacturing facilities.
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