Air Damper Valve

Valve Installation Dimension Drawing

Valve Type: D941W-1C

Valve Material: Steel

Applicable Temperature：≤ 250℃, ≤ 350℃

Medium Floe Rate: ≤ 25/S

Ventilation Efficiency: 1.5%

Applicable Medium: Smoke, Air, Dust, High-temperature Gas

Operating Pressure: 0.1Mpa

Valve Main Dimension(mm)											Actuator Parameter			Power KW
DN	D	D1	L	b	Z*b	L1	L2	L3	L4	H	Type	Torque Nm	Rotate Speed r/min	Power KW
200	320	280	160	10	8*Φ18	1040	420	Without Footing			802.5	50	1/2	0.01/0.02
220	340	300	160	10	8*Φ18	1060	420				802.5	50	1/2	0.01/0.02
250	375	335	160	10	12*Φ18	1095	420				802.5	50	1/2	0.01/0.02
280	420	375	180	12	12*Φ18	1140	420				802.10	100	1/2	0.06/0.09
300	440	395	180	12	12*Φ18	1160	420				802.10	100	1/2	0.06/0.09
320	460	415	180	12	12*Φ18	1190	420				802.10	100	1/2	0.06/0.09
350	490	446	180	12	12*Φ18	1230	420				802.10	100	1/2	0.06/0.09
360	500	455	180	12	12*Φ18	1240	420				802.10	100	1/2	0.06/0.09
400	540	495	200	14	16*Φ22	1280	420				802.20	200	1/2	0.09/1.12
450	595	551	200	14	16*Φ22	1335	420				802.20	200	1/2	0.09/1.12
500	645	600	200	14	20*Φ22	1385	420				802.30	300	1/2	0.12/0.18
560	715	665	200	14	20*Φ22	1475	420				802.30	300	1/2	0.12/0.18
600	755	705	200	14	20*Φ22	1515	420				802.30	300	1/2	0.12/0.18
630	790	740	200	14	20*Φ22	1550	420				802.30	300	1/2	0.12/0.18
700	860	810	220	16	24*Φ26	1620	550				802.60	600	1/2	0.18/0.25
800	975	920	220	16	24*Φ26	1735	550				802.60	600	1/2	0.18/0.25
900	1075	1020	240	16	24*Φ26	1785	550				802.60	600	1/2	0.18/0.25
1000	1175	1120	240	16	28*Φ30	1825	550				802.90	900	1/2	0.25/0.37
1100	1275	1220	260	18	28*Φ30	1915	550				802.90	900	1/2	0.25/0.37
1120	1295	1240	260	18	28*Φ30	1935	550				802.90	900	1/2	0.25/0.37
1200	1375	1320	260	18	32*Φ30	2015	550				802.120	1200	1/2	0.37/0.55
1250	1425	1370	280	18	32*Φ30	2065	550				802.120	1200	1/2	0.37/0.55
1300	1475	1420	280	18	32*Φ30	2110	550				802.120	1200	1/2	0.37/0.55
1400	1575	1520	280	18	36*Φ30	2210	625				802.200	2000	0.5/1	0.37/0.55
1500	1690	1630	300	20	36*Φ30	2325	625	1470	16	925	802.200	2000	0.5/1	0.37/0.55
1600	1770	1730	300	20	40*Φ30	2475	625	1550	16	975	802.200	2000	0.5/1	0.37/0.55
1700	1890	1830	320	20	40*Φ30	2600	625	1650	170	1025	802.200	2000	0.5/1	0.37/0.55
1800	1990	1930	320	20	40*Φ30	2700	625	1730	170	1075	802.300	3000	0.5/1	0.55/0.75
1900	2090	2030	340	22	48*Φ30	2800	625	1830	170	1125	802.300	3000	0.5/1	0.55/0.75
2000	2190	2130	340	22	48*Φ30	2900	625	1930	170	1175	802.300	3000	0.5/1	0.55/0.75
2100	2290	2230	360	22	52*Φ33	2990	625	2080	170	1237	802.300	3000	0.5/1	0.55/0.75
2200	2405	2340	360	22	52*Φ33	3105	625	2180	170	1287	802.300	3000	0.5/1	0.55/0.75
2300	2505	2440	380	24	56*Φ33	3205	625	2280	170	1337	802.400	4000	0.5/1	0.55/0.75
2400	2605	2540	380	24	56*Φ33	3305	625	2380	210	1387	802.400	4000	0.5/1	0.55/0.75
2500	2706	2640	400	24	60*Φ33	3405	625	2480	210	1437	802.400	4000	0.5/1	0.55/0.75
2600	2805	2704	400	24	60*Φ33	3505	625	2580	210	1487	802.400	4000	0.5/1	0.55/0.75
2700	2905	2804	440	26	64*Φ36	3605	625	2645	210	1550	802.500	5000	0.5/1	0.55/0.75
2800	3030	2964	440	26	64*Φ36	3730	625	2745	210	1600	802.500	5000	0.5/1	0.75/1.1
2900	3130	3060	420	26	64*Φ36	3830	625	2845	210	1650	802.500	5000	0.5/1	0.75/1.1
3000	3230	3160	420	26	64*Φ36	3830	625	2945	210	1700	802.500	5000	0.5/1	0.75/1.1

The matching actuator parameters are as follows:

Electric Actuator Description

1. The patented transmission structure design of combination of worm gear and planetary gear drive has become a classic in the industry. The reduction mechanism is placed in the watertight house even the output torque reaches 5000Nm. So the compact profiles provide the 802 series higher reliability and watertightness.

2. The shift from manual to motor operation is fully automatic and no hand/auto lever is provided. The handwheel could be operated without danger even in motor mode.

3. 802 series have a separate terminal box, which is more convenient for wiring and can be easily extended. Installing different control packages make 802 series be feature-rich integrated products.

4. The 802 series can have explosion-proof enclosure to reach Ex d B T4 Gb(GB3836.1-2010,GB3836.2-2010).

5. 802 series(include ex-proof units)with IP65(GB4208-2008)enclosure can ensure complete protection from dust and moisture. IP67 or IP68 enclosure can be provided if need.

Structure

Motor

The motor with special high torque low inertia can be dismantled independently.

Separately modular design of the terminal box

By replacing the terminal box with a control package which include reversing starters, protection units and terminal strips 802 series successfully combined the mechanical and electronic elements. Other control elements to automatically position a valve in proportion to an analog signal could be supplied if necessary.

The package cover is equipped with a local/remote selector and an open/stop/ close operator. The indicating light for indicating of power, full open, full close could be supplied if necessary.

Motor and manual operation

Motor operation

The motor gear set drives the worm shaft and worm gear, which in turn rotates the eccentric shaft. Rotation of the eccentric shaft causes the planetary gear to drive the clutch sleeve. So the drive sleeve keyed to the clutch sleeve rotates to drive the valve stem. For the reduction mechanism with a ratio of 40 is self-locking, the valve will be locked once the motor is interrupted.

Manual operation

When operate the handwheel which is keyed to the worm shaft, the rotation of the manual operated worm gear causes the planetary gear to drive the clutch sleeve, which rotates the drive sleeve by means of key. So the shift from manual to motor operation is fully automatic and no hand/auto lever is provided.

Indication window

Large sized indication window provides local monitoring of valve position.

Mechanical stop

Two adjustable mechanical stop bolts are provided in open and close direction. And the use of the special gasket ensures a reliable seal.

Limit switch, torque switch and position indicator

Limit switch

A cam shaft which remains in step with the drive sleeve and two switches in open/close direction are used for travel limit. A dial fixed on the cam shaft is for position indication and a potentiometer is supplied for remote indication.

Torque switch

The disk spring is mounted on the worm shaft. The axial move of the worm shaft is proportionable to the torque generated by the actuator. Two torque switches in open/close direction sense the movement of the worm shaft and interrupt the power to the motor.