AVG WATTS Manual

Installation INSTRUCTIONS FOR
PRESSURE REDUCING VALVES
(PRV and NRI-PRV)
15mm, 20mm & 25mm

FUNCTION

Pressure reducing valves are
installed to reduce & stabilize
inlet pressure of mains water
supply and to allow domestic
water heaters and appliances
to operate properly.

PRODUCT RANGE

Pressure reducing valve sizes:
15mm (1/2"), 20mm (3/4") &
25mm (1")
MODELS:
PRV15F, PRV20F and PRV25F
Female BSP connections
MODELS:
NRI-PRV-15C &
NRI-PRV-20C
CxC connections.

PRV TECHNICAL SPECIFICATIONS

Materials:
Body: DR Brass
Control Spindle: DR Brass
Seat: Stainless Steel 316
Seals: EPDM Rubber
Strainer: Stainless Steel
Spring: Stainless Steel
C
MODEL NO. A
PRV15F 68mm
PRV20F 68mm
PRV25F 70mm
Performance:
Pressure setting range:
Factory Setting:
Max inlet Pressure:
Max working Temp.:
Medium:
Complies with
Flow rate as per Appendix M @ 700 kPa dynamic
PRV15 set pressure 500 kPa Flow rate 60 L/Min
set pressure 250 kPa Flow rate 22 L/Min
PRV20 set pressure 500 kPa Flow rate 130 L/Min
set pressure 250 kPa Flow rate 30 L/Min
PRV25 set pressure 500 kPa Flow rate 155 L/Min
set pressure 260 kPa Flow rate 25.4 L/Min
set pressure 750 kPa Flow rate 165 L/pm
TM
WaterMark
D
B C
22mm 78mm 34mm
22mm 78mm 34mm
25mm 83mm 38mm
250-750 kPa
500 kPa
1600 kPa
80 °C
Water
AS1357.2
D