Balancing Valve FT

PN 16
Variable Orifice
Cast Iron Double Regulating and Commissioning Valve Confirms BS 5152 (EN 13789)
Y Pattern
Flanged to BS 4504/DIN PN 16 (EN1092) Variable Orifice with liner scale and circular scale (fine adjustment) Complies to BS 7350 requirements
Hand wheel embraces a vernier scale for accurate setting. Valves have unique design which enables the disc to be locked in the set- position with a screwdriver.
Valve is supplied with a screw driver secured to the hand wheel, Two points (inlet/outlet) are available on the body of the valve for fixing the- measuring nipples / test plugs for measurement of flow/delta P(balancing).

Hydrostatic Test Pressure

Body: 24 bar

Seat: 17.6 bar

Face to Face Dimensions

EN 558-1 Basic Series 1

Pressure / Temperature Rating

16 bar at -10 to 120 deg C

Maximum Differential Pressure

DN 65 DN 200 16 bar

DN 250: 6 bar

DN 300 4 bar

No.	Component	Material	DIN	BS
01	Body	Cast Iron	1691GG25	1561-GJL-250
02	Disc DN 65 - 200	CI + EPDM Coated	1691GG25	1561-GJL-250
02 a	Disc DN 250 & 300	SS + EPDM Ring	-	-
03	Disc Nut	Brass	X20Cr13	420S37
04	Stem	Stainless Steal	X10Cr13	410S21
05	O - Ring	EPDM	-	-
06	Bonnet	Cast Iron	1691GG25	1561-GJL-250
07	Gasket	Graphite	-	-
08	Hand Wheel	GGG40 + Epoxy Coating	-	-
09	Gland	Carbon Steel	-	-
10	Nut	Brass	-	-
11	Position Indicator	Plastic	-	-
12	Adjusting Bolt	Brass	-	-
13	Bolt	Carbon Steel	-	-

Balancing Valve Thd

PN 25
Variable Orifice
Bronze Double Regulating and Commissioning Valve
Y Pattern
Threaded ends to BS 21 (BSPP)
Variable Orifice with liner scale and circular scale (fine adjustment) Maintenance free valve.
Low flow resistance due to unique design.
Complies to BS 7350 accuracy requirements.
Tight closure of valve is assured by use of PTFE disc insert.
Hand wheel embraces a vernier scale for accurate setting.
Valves have unique design which enables the disc to be locked in the set position.
Valve can be sealed in the set position with the sealing wire and lead seal.
Two ports (inlet/outlet) are available on the body of the DRV (Fig: 2601V).
These points are for fixing the measuring nipples or test plugs for the- measurement of flow/delta P (balancing).

Hydrostatic Test Pressure

Body: 37.5 bar

Seat: 27.5 bar

Pressure / Temperature Rating

25 bar at -10 to 120 deg C

No.	Component	Material	DIN	BS	ASTM
01	Body	Bronze	G-CuSn5ZnPb (Rgs)	1400LG2	B62 C83600
02	Stem	DZR Brass	-	2874 CZ132	-
03	Disc	DZR Brass	-	2874 CZ132	-
04	Bonnet	DZR Brass	-	2874 CZ132	-
05	Seat Ring	PTFE	PTFE	PTFE	PTFE
06	O - Ring	EPDM	-	-	-
07	Cap / Knob	ABS	-	-	-