ZSHW/ZDRW series pneumatic/electric ventilation butterfly valve-Fornitore globale

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Details Explanation

ZSHW/ZDRW seriesPneumatic/Electric Ventilationbutterfly valveThe valve body and valve plate are both welded and processed from steel plates, making it a lightweight, structurally simple, and easy to operate butterfly valve. Equipped with gear and rack type dual piston pneumatic actuators or electronic electric actuators, suitable for flow and pressure control of low-pressure air or other gases, as well as high-temperature gases.

Structural diagram

Serial Number	Part name	Common materials
1	Valve body	Q235B、304、316
2	Valve plate	Q235B、304、316
3	Guide Sleeve	QAl9-4、316
4	Lower valve cover	Q235B、304、316
5	Bearing
6	Lower valve stem	304, 316
7	Upper Stem	304, 316
8	Packing gland	304
9	Packing material	PTFE、 Flexible graphite
10	Double headed stud	35, 304
11	Nut	45, 304

Specifications and technical parameters

1. Rated flow coefficient

Nominal diameter DN (mm)	100	150	200	250	300	350	400	450	500	600
Rated flow coefficient Kv	405	1150	2030	3150	4550	6200	8100	10260	13500	19800

Nominal diameter DN (mm)	700	800	900	1000	1100	1200	1300	1400	1500	1600
Rated flow coefficient Kv	27000	35700	44600	55080	66650	81000	95060	110250	125000	144000

2. Main technical parameters

Nominal diameter DN (mm)	DN100～1600（4”～64”）
Nominal pressure PN (MPa)	0.25, 0.6
Inherent flow characteristics	Approximately equal percentage
Form of executing agency	Single acting, double acting
Gas source pressure (MPa)	0.4
electric actuator	Select based on the required torque of the valve
supply voltage	220V. AC 50Hz 380V AC 50Hz (three-phase)
Flange connection form	PN ≤ 0.6MPa according to HG/T20592-2009 RF
Working temperature (℃)	Carbon steel: -20~425 ℃, stainless steel:- 40～595℃

Note: The flange thickness of all valves is designed according to HG/T20592-2009 PN0.25MPa.

Main performance indicators

Serial Number	project	Open type	Rear seat type	10 ° sealed type
1	Basic error	≤±2%
2	Return difference	≤±2%
3	Dead zone	≤±1.5%
4	Allowable leakage amount	≤± 2% x valve rated capacity	≤± 0.5% x valve rated capacity	≤± 0.3% x valve rated capacity

Valve plate sealing form

Product specifications

Nominal Diameter	DN50~2600
nominal pressure	PN0.25~1.0MPa
medium temperature	-40~595℃
Connection method	Flange style
Valve cover form	Standard type
body material	20 #, 304, 316
Valve plate sealing form	Open type, rear seat type, inclined type
Valve seal material	20 #, 304, 316
Traffic characteristics	Approximately equal percentage
Leakage rate - hard seal	≤0.5%×KV

Execution mechanism configuration and allowable pressure difference

Pneumatic piston type double acting actuator allows for differential pressure(Table 6) Unit: MPa

Model of actuator		Nominal diameter DN (mm)
Model of actuator		100	150	200	250	300	350	400	450	500	600
two rise use	TLM83	0.19	0.07
	TLM100			0.06	0.03	0.015	0.006
	TLM125						0.014	0.009	0.006	0.004
	TLM160							0.05	0.03	0.02	0.008
Model of actuator		Nominal diameter DN (mm)
Model of actuator		700	800	900	1000	1100	1200	1300	1400	1500	1600
two rise use	TLM160	0.005
	TLM190	0.015	0.01	0.006	0.002
	TLM210				0.008	0.005	0.002
	TLM240						0.015	0.01	0.009	0.005	0.003

Pneumatic piston type single acting actuator allows for differential pressure(Table 7) Unit: MPa

Model of actuator		Nominal diameter DN (mm)
Model of actuator		100	150	200	250	300	350	400	450	500	600
one rise use	TLM100K4	0.14	0.04
	TLM125K5			0.04	0.016	0.01	0.005
	TLM160K4						0.02	0.015	0.01	0.005
	TLM190K4									0.008	0.003
Model of actuator		Nominal diameter DN (mm)
Model of actuator		700	800	900	1000	1100	1200	1300	1400	1500	1600
one rise use	TLM190K4	0.002
	TLM210K5	0.01	0.008	0.006	0.004	0.003
	TLM240K4				0.012	0.008	0.006	0.004	0.003	0.002
	TLM270K4								0.008	0.005	0.003

Electric actuator allows for differential pressure(Table 8) Unit: MPa

Torque of actuator (Nm)	Nominal diameter DN (mm)
Torque of actuator (Nm)	100	150	200	250	300	350	400	450	500	600
50	0.16	0.05
100			0.05	0.018	0.012	0.07
200						0.03	0.02	0.015	0.008
300									0.012	0.005
Torque of actuator (Nm)	Nominal diameter DN (mm)
Torque of actuator (Nm)	700	800	900	1000	1100	1200	1300	1400	1500	1600
600	0.01	0.005	0.003
1000			0.005	0.003	0.002
1600					0.004	0.003	0.002	0.002	0.0015	0.001

Ventilation butterfly valve selection sample download