Product description
   
BSPF Series Dynamic Balance Electric Regulation Valve with a new design concept, it is widely used in the central air conditioning control.The transport flow in any open position is the single and constant ;.the valve opening changed only by the standard control signals control.not affected by system pressure fluctuations;flow characteristics curve is in accordance with the ideal flow characteristics curve;good regulation characteristics.
 
Product features
Valve shut off the pressure difference, leakage is very small;
Body material: ductile iron, surface for rust treatment, the appearance of fine;
By using a straight stroke adjustment type driver, the flow rate is accurately output: the percentage of the curve or the linear curve (the setting of the code switch on the driver);
Dynamic balancing part: the balanced design of the bellows, the valve before the pressure fluctuations can easily achieve dynamic balance;
Drive control signal: 0 (2) -10VDC, 0 (4) -20mA (free setting of the code on the driver);
Drive valve position feedback signal: 0 (2) -10VDC, 0 (4) -20mA (open on the drive).


Technical parameters

PN(Pressure rating)	PN16 /PN25
Flange connection standard	ISO 7005, JB/T 4700-200 and ANSI B 16.5
Leakage rate	Kvs0.02%
Allowable medium	Water valve (2~90) chilled water, cooling water, antifreeze, refrigerant
Allowable working pressure	1.6Mpa,2.5Mpa
travel	20mm(≤DN65),40mm(≥DN80)
Valve Body	Nodular
Valve core	Stainless
Valve stem	Stainless
Sealing ring	PTFE
Seal structure	V type sealing ring + stainless steel spring self compensation

 

DN (mm)	Port Size (in)	PN	Kvs (m3/h)	Differential pressure (0.2bar) Rated flow (m3/h)	Medium max  heat resistanceoC	Travel (mm)	Drive torque (N)	Off pressure difference (Mpa)	Valve body+actuator weight(kg)
25	1"	16/25	8	4	90	20	500N	≤0.30	21
32	1 1/4"	16/25	12.5	7	90	20	500N	≤0.30	23
40	1.1/2"	16/25	20	11	90	20	500N	≤0.30	25
50	2"	16/25	32	17	90	20	1000N	≤0.30	28
65	2-1/2"	16/25	50	28	90	40	1800N	≤0.30	35
80	3"	16/25	80	40	90	40	1800N	≤0.30	43
100	4"	16/25	125	63	90	40	3000N	≤0.30	63
125	2"	16/25	160	80	90	40	3000N	≤0.30	80
150	2"	16/25	200	100	90	40	3000N	≤0.30	95
200	8"	16/25	260	130	90	40	3000N	≤0.30	155