How it works
Back-pressure regulator
Construction
Parts and materials
Applications
Media and industries
- Cold And Hot Water
- Air
Diaphragm pressure regulator “up to itself” with pilot control is designed to maintain the pressure of the working medium at the valve inlet by changing its flow rate, as well as to create a back-up of the liquid in areas with a difference in altitude.
Main technical data and characteristics
| Parameter | Value |
|---|---|
| Nominal Diameter DN, mm | 50 ÷ 200 |
| Nominal Pressure PN, bar | 16 |
| Set Pressure Range, bar | 0.5 ÷ 10 |
| Operating Medium Temperature, °C | -10 to +80 |
| Working Medium | Cold and hot water, air |
| Flow Direction | Indicated by the arrow on the valve body |
| Leakage Class | A |
| Pipeline Connection | Flanged |
| Installation Position | Horizontal / vertical |
| Body Material | Cast iron GGG40 |
| Disc Material | Cast iron GGG40 |
| Application Areas | Heating systems, water and heat supply, ventilation and air conditioning |
| Average Service Life, years | 10 |
| Delivery Set Includes | - Main valve- Pilot valve- Impulse tubes- Pressure gauge (not calibrated) |
Dimensions and dimensions of the regulators “up to itself” with pilot control DNOVA PVB3-1313N-F, diaphragm regulators, body - cast iron GGG40, disk - cast iron GGG40, seal - NBR, flange connection
| Model | DN | L | H | H1 | D | D1 | n–Ød |
| DN50 | 50 | 250 | 505 | 90 | 165 | 125 | 4–Ø18 |
| DN65 | 65 | 280 | 520 | 98 | 185 | 145 | 4–Ø18 |
| DN80 | 80 | 310 | 535 | 110 | 200 | 165 | 8–Ø18 |
| DN100 | 100 | 350 | 555 | 120 | 220 | 180 | 8–Ø18 |
| DN150 | 150 | 450 | 645 | 155 | 285 | 240 | 8–Ø22 |
| DN200 | 200 | 550 | 715 | 190 | 340 | 295 | 12–Ø22 |
Sketch of dimensions and dimensions of regulators “up to self” with pilot control DNOVA PVB3-1313N-F, diaphragm regulators, body - cast iron GGG40, disk - cast iron GGG40, seal - NBR, flange connection
Table of parts and materials of regulators “up to self” with pilot control DNOVA PVB3-1313N-F, diaphragm regulators, body - cast iron GGG40, disk - cast iron GGG40, seal - NBR, flange connection
| № | Part Name | Material |
|---|---|---|
| 1 | Body | Cast iron GGG40 |
| 2 | Seat | Cast iron GGG40 |
| 3 | Seal | NBR |
| 4 | Stem | Stainless steel 304 |
| 5 | Disc | Cast iron GGG40 |
| 6 | Diaphragm | NBR |
| 7 | Disc | Cast iron GGG40 |
| 8 | Cover | Cast iron GGG40 |
| 9 | Valve | – |
| 10 | Spring | Spring steel |
| 11 | Stem | Stainless steel AISI 304 |
| 12 | Pilot valve | Bronze |
| 13 | Pressure gauge | – |
Sketch of parts and materials of regulators “up to self” with pilot control DNOVA PVB3-1313N-F, diaphragm regulators, body - cast iron GGG40, disk - cast iron GGG40, seal - NBR, flange connection
- Operating environment
- Cold And Hot Water and Air
Production. Usually 7–14 business days after you approve the quotation and pay. Made-to-specification items are confirmed in the quotation.
Freight. Not charged at checkout. A manager quotes air and sea freight to your port or airport, and nothing ships until you approve the price and the freight.
To North America. From approval and payment to the destination port or airport: air 14–24 days, sea 32–60 days. Estimates, not guarantees.
Terms. EXW Ningbo or FOB Ningbo Port; CIF on request. The agreed term is written on the Proforma Invoice.
Total items
Product subtotal