How it works
Downstream pressure regulator
Construction
Parts and materials
Applications
Media and industries
- Cold And Hot Water
- Air
The pilot-controlled diaphragm pressure regulator is designed to maintain a constant, pre-set pressure at the outlet (“downstream”), regardless of inlet pressure and flow fluctuations. The MPPP operates automatically from the pressure in the pipeline, without external energy sources.
Main technical data and characteristics
| Parameter | Value |
|---|---|
| Nominal Diameter DN, mm | 50 ÷ 200 |
| Nominal Pressure PN, bar | 16 |
| Setting Pressure, bar | 0.5 ÷ 10 |
| Working Temperature, °C | -10 to +80 |
| Working Medium | Cold and hot water, air |
| Flow Direction | Arrow on the valve body |
| Sealing Class | A |
| Pipeline Connection | Flanged |
| Mounting Position | Horizontal / Vertical |
| Body Material | Cast iron GGG40 |
| Disc Material | Cast iron GGG40 |
| Application Fields | Heating, water and heat supply systems, |
| ventilation and air conditioning | |
| Average Service Life, years | 10 |
| Completeness | Main valve; Pilot valve;Impulse tubes; 2 manometers (unverified) |
Dimensions and dimensions of regulators “after-self” with pilot control DNOVA PVA1-1313RR-F, diaphragm regulators, body - cast iron GGG40, disk - cast iron GGG40, seal - reinforced natural rubber, connection - flange connection
| Model | DN | L | H | H1 | D | D1 | n–Ød |
| DN50 | 50 | 190 | 265 | 200 | 165 | 125 | 4–Ø18 |
| DN65 | 65 | 210 | 310 | 205 | 185 | 145 | 4–Ø18 |
| DN80 | 80 | 240 | 350 | 245 | 200 | 165 | 8–Ø18 |
| DN100 | 100 | 272 | 460 | 305 | 220 | 180 | 8–Ø18 |
| DN150 | 150 | 325 | 570 | 415 | 285 | 240 | 8–Ø22 |
| DN200 | 200 | 380 | 840 | 510 | 340 | 295 | 12–Ø22 |
Sketch of dimensions and dimensions of regulators “after-self” with pilot control DNOVA PVA1-1313RR-F, diaphragm regulators, body - cast iron GGG40, disk - cast iron GGG40, seal - reinforced natural rubber, flange connection
Table of parts and materials of regulators “after-self” with pilot control DNOVA PVA1-1313RR-F, diaphragm regulators, body - cast iron GGG40, disk - cast iron GGG40, seal - natural reinforced rubber, connection - flanged.
| No. | Part Name | Material |
|---|---|---|
| 1 | Body | Cast iron GGG40 |
| 2 | Seat | Stainless steel AISI 304 |
| 3 | Stem | Stainless steel AISI 304 |
| 4 | Sealing Washer | Cast iron GGG40 |
| 5 | O-ring Seal | NBR |
| 6 | O-ring Seal | NBR |
| 7 | Disc | Cast iron GGG40 |
| 8 | Diaphragm | Reinforced natural rubber |
| 9 | Diaphragm Washer | Cast iron GGG40 |
| 10 | Screw | Bronze |
| 11 | Spring | Stainless steel AISI 304 |
| 12 | Cover | Cast iron GGG40 |
| 13 | Crane | - |
| 14 | Pressure gauge | - |
| 15 | Pilot valve | bronze |
| 16 | Suspension ring | stell |
| 17 | Pressure gauge | - |
Sketch of parts and materials of regulators “after-self” with pilot control DNOVA PVA1-1313RR-F, diaphragm regulators, body - cast iron GGG40, disk - cast iron GGG40, seal - natural reinforced rubber, connection - flanged
- 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