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JSQD304 angle stroke ventilation regulating valve

JSQD304 angle stroke ventilation regulating valve

JSQD304-6B/K-type pneumatic angle stroke ventilation control valve (referred to as regulating butterfly valve) is a rotary control valve, which is used with the valve positioner to achieve proportional adjustment. Adjusting screw valve body flow resistance is small, flow coefficient, regulating butterfly valve with multi-spring pneumatic diaphragm actuator or pneumatic piston actuator is especially suitable for large diameter, large flow, thick turbid slurry or furnace flue gas control.

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Product classification

J Series Control Valve Products

Key words:

SMAK

Product Details

JSQD304

angle stroke ventilation regulating valve

Pneumatic Rotary Stroke Regulating Valve

Product overview

Standard technical parameters

Valve body

Type: casting or steel plate welding
Valve size: DN50-1000 2 "-40"
Rated pressure: PN6, PN10, PN16 ANSI 150
Connection form: ANSI GB JB HG JPI JIS DIN
Welding (to be specified by user)
Flange standard: ANSIGB JB HG JPI JIS DIN
Sealing surface type: RF RJ FF RM flange connection
Flange end face distance: as GB12221-89
Material: NCB WC6 WC9 CF3 CF8 CF3M CF8M
Inner parts material: WCB 304 316 304L 316L 17-4PH
Structure type: inclined plate type (without eccentricity, see figure)
Gap form: pressing plate type
Material: V-type polyethylene packing, flexible graphite packing
Gasket: Form, serrated and flat
Material, F4/Modified F4, Stainless Steel Graphite

Intra-Valve Components

valve plate: slope sealing surface
10 ° initial angle when the valve plate is in the closed position
Seat: Same as valve body

implementing agency

Form: multi-spring film actuator
ZHA-22，ZHA-23，ZHA-34，ZHA-45
Valve function: gas open type, gas closed type
Angle: 60 °
Diaphragm material: nitrile rubber clip reinforced polyester fabric
projectile range: 20-100Kpa,40-200Kpa,20-60Kpa,60-100Kpa
Air supply pressure: 0.14 ~ 0.25Mpa
Ambient temperature:-30 ℃ ~ 70 ℃
Form: pneumatic piston actuator (ZSC-45)
Valve function: double acting (double cylinder)
Angle: 60 °
Air supply pressure: 0.4 ~ 0.6Mpa
Signal interface: internal thread M16 × 1.5
Ambient temperature:-20 ℃ ~ 90 ℃

Valve function (take pneumatic diaphragm regulating valve as an example)

Air-off type F0 (air-off type bracket)
When the air supply fails, the actuator spring will open the valve.
Air-closed FC (open air distribution bracket))
When the air supply fails, the actuator spring closes the valve.

Accessories (configured as required)

Positioner, air filter pressure reducing valve, handwheel mechanism, limit switch, solenoid valve, valve position transmitter, continuator, position retaining valve, others

Performance

Rated Kv value: refer to Table 1
Adjustable range: 30:1
Seat leakage rate (% for rated K value):
Metal seal
Less than 0.5%(ANSI B16.104-1976II)
Less than 0.01 or 0.001 percent
(ANSI B16.104-1976IV)
Return difference: less than 1% of full stroke (with positioner)
Less than 3%-5% of full stroke (without positioner)
Basic error: less than 1% of full stroke (with positioner)
Less than ± 5% of full travel (without positioner)
Overall dimension: refer to Table 2
Product weight: refer to Table 2
Paint color: the pneumatic actuator of the regulating valve and the surface of the valve shall be painted, and the stainless feeding and feeding shall not be painted. The arrows and text on the valve body are painted red.
User-specified colors can also be

Nominal diameter DN(mm)	Rated flow coefficient kv	Type of actuator	Effective area of diaphragm (cm²)	Rated stroke (mm)	Allowable pressure difference (Mpa)
50	100	ZHA-22	350	16	0.6
80	160				0.6
100	280				0.6
125	450	ZHA-23	350	25	0.6
150	610				0.43
200	1040				0.24
250	1700	ZHA-34	560	40	0.4
300	2480				0.28
350	3300				0.2
400	4350	ZHA-45	900	60	0.37
450	5550				0.29
500	6800				0.23
600	9800	ZSC-45 (ZSHW 型）	484	60	0.53
700	13300				0.38
800	17300				0.29
900	21900				0.23
1000	27000				0.19

Table 1Kv Value and Allowable Pressure Difference

Note: The allowable differential pressure data in the table is the value of the projectile range 20-100KDa with positioner.

Nominal diameter DN	A	L	L1	H1	H2	H3	Flange distance		Weight (Kg)
Nominal diameter DN	A	L	L1	H1	H2	H3	Central	Flanged	Weight (Kg)
50	285	258	78	471	271	55	60	108	32
80	285	292	92	471	271	62	60	114	48
100	285	312	102	471	271	72	60	127	58
125	285	351	117	497	297	87	60	140	74
150	285	377	130	497	297	100	60	140	80
200	285	459	172	497	297	127	70	152	110
250	360	524	197	613	375	155	70	165	120
300	360	578	227	613	375	181	80	178	130
350	360	628	252	613	375	206	80	190	190
400	470	728	296	742	455	231	100	216	200
450	470	780	321	742	455	259	100	222	270
500	470	830	346	742	455	284	100	229	300
600	--	1045	480	1109	796	377	150	267	380
700	--	1145	530	1109	796	430	150	292	430
800	--	1270	595	1109	796	487	200	318	490
900	--	1455	685	1109	796	537	200	330	560
1000	--	1545	735	1109	796	587	200	410	620

Table 2 Dimensions and Weight Unit: mm

Note:

1. The weight data in the table is of the clip type, without accessories, and side-mounted handwheel can also be installed.

2, the valve body flange and flange end distance can be specified by the user standard foot, such as: ANSI ,JIS,DIN and other standards.

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