M2 PDC DN20
2-WAY UNMIXED PUMP UNIT WITH FLOWMETER
The unit for 1/2” (130 mm) circulating pumps consists of:
Supply
• Connection.
• Flanged ball valve with T-handle.
• High efficiency synchronous pre-wired circulating pump (for the models that include it).
• Flanged ball valve supplied with in-handle thermometer (red ring,
range 0°C-120°C).
Return
• Flanged ball valve with 20 mbar check valve (which can be excluded by rotating the handle by 45°) supplied with in-handle thermometer (blue ring; 0°C-120°C).
• Straight flowmeter with flow regulation, 1” male threaded. Direct reading of the flowrate through the graduated scale.
• Flanged ball valve with T-handle.
• Connection.
Centre distance 90 mm. EPP insulation box (Dimensions: 180x302x142 mm).
PN 10, max temperature 110°C (unit without pump).
Connections: 3/4” Male with swivel shank to the heat source or to the zone manifold. 3/4” Female to the user.
FIELD OF USE
For power up to 30 kW (with Δt 20 K) and maximum flow rate 1300 l/h.
Kvs Value: 5.2.
Approximate data calculated with a 6 m head circulating pump.
Available circulating pumps:
Wilo Para 15/6 SC
Grundfos UPM3S Auto 15-60
Wilo Para 15/8 SC
Flow rate ranges
42 = 5-42 l/min
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Code
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Specifications |
Manifold connections
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System connections
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Circulator
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| 20255R-42 | G 3/4" Male | G 3/4" Female | - | |
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20255R-42. BRV ModvlvS M2 PDC. Made in Italy. Two-way direct hydraulic module DN20 for 1/2” (130 mm) circulators with integrated flow meter regulator for heat pump systems. Adjustment range 5-42 L/min. Reversible supply right-left. PPE insulation box. Dimensions: 180x302x142 mm. Manifold connection: G 3/4" M (ISO 228). System connection: G 3/4" F (ISO 228). High-efficiency synchronous circulator: not included. Center distance 90 mm. Maximum pressure: PN 10. Operating fluids: water (glycol solution max. 50%). Maximum fluid temperature: 110°C. Application range: for capacities up to 30 kW (with Δt 20 K) and flow rate of 1.3 m3/h. Kvs value 5.2 for a residual head of 4.3 mH2O. Indicative data calculated with a circulator with 6 m head.
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| 20255R-42-P6 | G 3/4" Male | G 3/4" Female | Wilo Para 15/6 SC | |
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20255R-42-P6. BRV ModvlvS M2 PDC. Made in Italy. Two-way direct hydraulic module DN20 for 1/2” (130 mm) circulators with integrated flow meter regulator for heat pump systems. Regulation range 5-42 L/min. Reversible flow right-left. PPE insulation box. Dimensions: 180x302x142 mm. Manifold connection: G 3/4" M (ISO 228). User connection: G 3/4" F (ISO 228). High-efficiency synchronous circulator: Wilo Para 15/6 SC. Center distance 90 mm. Maximum pressure: PN 10. Operating fluids: water (glycolated max. 50%). Maximum fluid temperature: 95°C. Application range: for powers up to 30 kW (with Δt 20 K) and flow rate of 1.3 m3/h. Kvs value 5.2 for a residual head of 4.3 mH2O. Power supply: 230 V AC.
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| 20255R-42-A6 | G 3/4" Male | G 3/4" Female | Grundfos UPM3S Auto 15-60 | |
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20255R-42-A6. BRV ModvlvS M2 PDC. Made in Italy. Two-way direct hydraulic module DN20 for 1/2” (130 mm) circulators with integrated flow meter/regulator for heat pump systems. Adjustment range 5-42 L/min. Reversible flow right-left. PPE insulation box. Dimensions: 180x302x142 mm. Manifold connection: G 3/4" M (ISO 228). System connection: G 3/4" F (ISO 228). High-efficiency synchronous circulator: Grundfos UPM3S Auto 15-60. Center distance 90 mm. Maximum pressure: PN 10. Operating fluids: water (glycolated max. 50%). Maximum fluid temperature: 110°C. Application range: for power up to 33 kW (with Δt 20 K) and flow rate of 1.4 m3/h. Kvs value 5.2 for a residual head of 4.3 mH2O. Power supply: 230 V AC.
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| 20255R-42-P8 | G 3/4" Male | G 3/4" Female | Wilo Para 15/8 SC | |
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20255R-42-P8. BRV ModvlvS M2 PDC. Made in Italy. Direct two-way DN20 hydraulic module for 1/2” (130 mm) circulators with integrated flow meter regulator for heat pump systems. Adjustment range 5-42 L/min. Reversible right-left flow. PPE insulation box. Dimensions: 180x302x142 mm. Manifold connection: G 3/4" M (ISO 228). Load connection: G 3/4" F (ISO 228). High-efficiency synchronous circulator: Wilo Para 15/8 SC. Center distance 90 mm. Maximum pressure: PN 10. Operating fluids: water (glycol max. 50%). Maximum fluid temperature: 95°C. Application range: for powers up to 47 kW (with Δt 20 K) and flow rate of 2.00 m3/h. Kvs value 5.2 for a residual head of 4.3 mH2O. Power supply: 230 V AC.
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