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Back pressure regulator DNOVA PRB direct-acting, gray cast iron SCH20, flanged

Regular price From $439.49 USD
Regular price Sale price From $439.49 USD
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Description

Upstream pressure regulators are designed for automatic maintenance of the set pressure of the working medium (cold and hot water, steam, non-aggressive liquids) in pipeline systems upstream of the protected equipment. The principle of operation is based on the balance of forces: when the pressure increases upstream of the regulator the valve closes, and when it decreases - opens, providing maintenance of the set pressure at the inlet. The device is designed in normal closed version, which ensures that the valve remains closed in the absence of pressure.



Main technical parameters

Parameter Value
Nominal Diameter DN, mm 15 ÷ 100
Nominal Pressure PN, bar 16
Working Medium Temperature, °C +5 to +150
Ambient Temperature, °C +5 to +50
Working Medium Water, ethylene glycol and propylene glycol solutions (up to 65%), and other non-flammable, explosion-proof, non-toxic liquid media. Note: If mechanical impurities larger than 70 µm are present in the medium, a filter must be installed before the regulator.
Pipeline Connection Flanged with sealing surfaces type B, type 21
Body Material Cast iron
Plunger Material Stainless steel
Diaphragm Material NBR
Leakage in Shut-Off Valve, % of Kv Max. 0.05%
Dynamic Control Range 1:50
Fields of Application Heating, water supply, and ventilation systems
Service Life, years 10
Scope of Supply Regulator – 1 pc; Copper tube 6x1 mm – 75 cm; Copper tube 6x1 mm – 30 cm; Adapter G1/2” - M12x1.5 – 1 pc; Fitting M12x1.5 – 1 pc; Passport – 1 pc

 

 

Weight and dimensional parameters

DN L, mm H, mm H1, mm Weight, kg
DN15 130 583 535 13,5
DN20 150 598 545 13,8
DN25 160 618 560 14,6
DN32 180 638 568 16,3
DN40 200 651 576 18,3
DN50 230 659 576 18,8
DN65 290 676 583 28,3
DN80 310 692 592 31,7
DN100 350 738 628 43,3

Dimensional sketch of pressure regulator

 

 

Pressure regulator detail

Part Name Assembly Section
1 Body I Valve
2 Seat
3 Cover with lower part of diaphragm case
4 Piston
5 Nut
6 Relief chamber seal
7 Guide
8 Gasket
9 Bolt
10 Lower part of diaphragm case II Actuator
11 Upper part of diaphragm case
12 Fitting “+”
13 Fitting “−”
14 Pin
15 Nut
16 Washer
17 Diaphragm piston
18 Diaphragm
19 Washer
20 Stem seal
21 Stem
22 Gasket
23 Gasket III Setpoint Device
24 Union nut
25 Pin
26 Retaining ring
27 Tube
28 Spring retainer
29 Plate
30 Plate
31 Spring retainer
32 Spring
33 Coupling sleeve
34 Adjustment screw
35 Locking screw
36 Plate
37 Nut
38 Stand

Pressure regulator detail sketch

 

 

Setting ranges

Setting range number Control setting range Pressure, MPa
0,01 0,04 0,1 0,16 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1,0 1,1 1,2
0 0,01 ... 0,1                        
1 0,04 ... 0,16                        
2 0,1 ... 0,4                      
3 0,3 ... 0,7                    
4 0,6 ... 1,2                

Specifications

Body material
Cast iron
Maximum allowable temperature
150 °C
Connection type
Flanged
Operating environment
Cold Water, Hot Water, Water-Glycol Solutions
Applications
Heat Supply, Water Supply
Nominal pressure
16 bar

Delivery

The cost and delivery time for your order depend on several factors, including the specific product you are ordering, the quantity, and the country of destination. Each product may have different manufacturing lead times and shipping requirements, which can affect the overall delivery schedule.

To get the most accurate and up-to-date information on delivery costs and timelines, we recommend contacting our sales managers. They will be happy to provide you with a detailed quote and estimated delivery time based on your specific requirements.

Please feel free to reach out to us for any questions or further assistance regarding your order.

Your cart
Variant Variant total Quantity Price Variant total
DN25 / 16 bar / 1 - 4 kgf/cm2 | 4D230-09634
DN25 / 16 bar / 1 - 4 kgf/cm2 | 4D230-09634
$470.09/ea
$0.00
$470.09/ea $0.00
DN25 / 16 bar / 1 - 4 kgf/cm2 | 10D230-09629
DN25 / 16 bar / 1 - 4 kgf/cm2 | 10D230-09629
$470.09/ea
$0.00
$470.09/ea $0.00
DN25 / 16 bar / 1 - 4 kgf/cm2 | 2,5D230-09760
DN25 / 16 bar / 1 - 4 kgf/cm2 | 2,5D230-09760
$470.09/ea
$0.00
$470.09/ea $0.00
DN25 / 16 bar / 1 - 4 kgf/cm2 | 1,6D230-09765
DN25 / 16 bar / 1 - 4 kgf/cm2 | 1,6D230-09765
$470.09/ea
$0.00
$470.09/ea $0.00
DN25 / 16 bar / 1 - 4 kgf/cm2 | 6,3D230-09755
DN25 / 16 bar / 1 - 4 kgf/cm2 | 6,3D230-09755
$470.09/ea
$0.00
$470.09/ea $0.00
DN25 / 16 bar / 3 - 7 kgf/cm2 | 4D230-09635
DN25 / 16 bar / 3 - 7 kgf/cm2 | 4D230-09635
$470.09/ea
$0.00
$470.09/ea $0.00
DN25 / 16 bar / 3 - 7 kgf/cm2 | 10D230-09630
DN25 / 16 bar / 3 - 7 kgf/cm2 | 10D230-09630
$470.09/ea
$0.00
$470.09/ea $0.00
DN25 / 16 bar / 3 - 7 kgf/cm2 | 2,5D230-09761
DN25 / 16 bar / 3 - 7 kgf/cm2 | 2,5D230-09761
$470.09/ea
$0.00
$470.09/ea $0.00
DN25 / 16 bar / 3 - 7 kgf/cm2 | 1,6D230-09766
DN25 / 16 bar / 3 - 7 kgf/cm2 | 1,6D230-09766
$470.09/ea
$0.00
$470.09/ea $0.00
DN25 / 16 bar / 3 - 7 kgf/cm2 | 6,3D230-09756
DN25 / 16 bar / 3 - 7 kgf/cm2 | 6,3D230-09756
$470.09/ea
$0.00
$470.09/ea $0.00
DN25 / 16 bar / 6 - 12 kgf/cm2 | 4D230-09636
DN25 / 16 bar / 6 - 12 kgf/cm2 | 4D230-09636
$470.09/ea
$0.00
$470.09/ea $0.00
DN25 / 16 bar / 6 - 12 kgf/cm2 | 10D230-09631
DN25 / 16 bar / 6 - 12 kgf/cm2 | 10D230-09631
$470.09/ea
$0.00
$470.09/ea $0.00
DN25 / 16 bar / 6 - 12 kgf/cm2 | 2,5D230-09762
DN25 / 16 bar / 6 - 12 kgf/cm2 | 2,5D230-09762
$470.09/ea
$0.00
$470.09/ea $0.00
DN25 / 16 bar / 6 - 12 kgf/cm2 | 1,6D230-09767
DN25 / 16 bar / 6 - 12 kgf/cm2 | 1,6D230-09767
$470.09/ea
$0.00
$470.09/ea $0.00
DN25 / 16 bar / 6 - 12 kgf/cm2 | 6,3D230-09757
DN25 / 16 bar / 6 - 12 kgf/cm2 | 6,3D230-09757
$470.09/ea
$0.00
$470.09/ea $0.00
DN32 / 16 bar / 0,1 - 1 kgf/cm2 | 10D230-09642
DN32 / 16 bar / 0,1 - 1 kgf/cm2 | 10D230-09642
$483.61/ea
$0.00
$483.61/ea $0.00
DN32 / 16 bar / 0,1 - 1 kgf/cm2 | 16D230-09637
DN32 / 16 bar / 0,1 - 1 kgf/cm2 | 16D230-09637
$483.61/ea
$0.00
$483.61/ea $0.00
DN32 / 16 bar / 0,1 - 1 kgf/cm2 | 6,3D230-09768
DN32 / 16 bar / 0,1 - 1 kgf/cm2 | 6,3D230-09768
$483.61/ea
$0.00
$483.61/ea $0.00
DN32 / 16 bar / 0,4 - 1,6 kgf/cm2 | 10D230-09643
DN32 / 16 bar / 0,4 - 1,6 kgf/cm2 | 10D230-09643
$483.61/ea
$0.00
$483.61/ea $0.00
DN32 / 16 bar / 0,4 - 1,6 kgf/cm2 | 16D230-09638
DN32 / 16 bar / 0,4 - 1,6 kgf/cm2 | 16D230-09638
$483.61/ea
$0.00
$483.61/ea $0.00
DN32 / 16 bar / 0,4 - 1,6 kgf/cm2 | 6,3D230-09769
DN32 / 16 bar / 0,4 - 1,6 kgf/cm2 | 6,3D230-09769
$483.61/ea
$0.00
$483.61/ea $0.00
DN32 / 16 bar / 1 - 4 kgf/cm2 | 10D230-09644
DN32 / 16 bar / 1 - 4 kgf/cm2 | 10D230-09644
$483.61/ea
$0.00
$483.61/ea $0.00
DN32 / 16 bar / 1 - 4 kgf/cm2 | 16D230-09639
DN32 / 16 bar / 1 - 4 kgf/cm2 | 16D230-09639
$483.61/ea
$0.00
$483.61/ea $0.00
DN32 / 16 bar / 1 - 4 kgf/cm2 | 6,3D230-09770
DN32 / 16 bar / 1 - 4 kgf/cm2 | 6,3D230-09770
$483.61/ea
$0.00
$483.61/ea $0.00
DN32 / 16 bar / 3 - 7 kgf/cm2 | 10D230-09645
DN32 / 16 bar / 3 - 7 kgf/cm2 | 10D230-09645
$483.61/ea
$0.00
$483.61/ea $0.00
DN32 / 16 bar / 3 - 7 kgf/cm2 | 16D230-09640
DN32 / 16 bar / 3 - 7 kgf/cm2 | 16D230-09640
$483.61/ea
$0.00
$483.61/ea $0.00
DN32 / 16 bar / 3 - 7 kgf/cm2 | 6,3D230-09771
DN32 / 16 bar / 3 - 7 kgf/cm2 | 6,3D230-09771
$483.61/ea
$0.00
$483.61/ea $0.00
DN32 / 16 bar / 6 - 12 kgf/cm2 | 10D230-09646
DN32 / 16 bar / 6 - 12 kgf/cm2 | 10D230-09646
$483.61/ea
$0.00
$483.61/ea $0.00
DN32 / 16 bar / 6 - 12 kgf/cm2 | 16D230-09641
DN32 / 16 bar / 6 - 12 kgf/cm2 | 16D230-09641
$483.61/ea
$0.00
$483.61/ea $0.00
DN32 / 16 bar / 6 - 12 kgf/cm2 | 6,3D230-09772
DN32 / 16 bar / 6 - 12 kgf/cm2 | 6,3D230-09772
$483.61/ea
$0.00
$483.61/ea $0.00

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