Pneumatic diaphragm piston cut-off valve

NegotiableUpdate on 07/28

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Overview

Product Name: Pneumatic Thin Film Piston Cut off Valve Product Introduction:

Product Details

HBZDseries Pneumatic diaphragm piston cut-off valve

Product Features	Valve body parameters
Superior structure: Balanced valve internals, improving the allowable pressure differential sealing of the cut-off valve. Good sealing performance: can choose tight seal or soft seal. The bellows sealing type forms a complete seal for the moving valve stem, blocking the possibility of medium leakage. The external structure: the entire height can be reduced by about 30%, and the weight can be reduced by about 30%. The piston type actuator has high operating force and large pressure difference when used	nominal pressure PN10、PN16、PN40、PN64
	Connection method Flange type, (special: welded type)
	body material HT200、ZG230-450、ZG1Cr18Ni9Ti、ZG1Cr18Ni12MO2Ti
	Valve core material 1Cr18Ni9T、 OCr18Ni12MO2Ti、1Cr18Ni9Ti 、 Sitailai welding
	Sealing material PTFE、 Hard seal, special high-temperature material
Technical Parameter	Corrugated pipe 1Cr18Ni9Ti
Action mode Air open type, air closed type	fill material Polytetrafluoroethylene, flexible graphite
Valve seat structure M socket P single seat N double seat	push pole Lining 2Cr13, 1Cr18Ni9Ti
Signal Range 2bar	put sth. under sth. else to raise it or make it level a flat Rubber asbestos board, 1Cr18Ni9Ti asbestos wrapped gasket
Sealing grade III, IV, V, VI	Flange standard GB9113-88、JB/T79-94、GB2555-81
ambient temperature -30 ℃~+70 ℃ (see locator parameters for explosion-proof type)	Fluid temperature- 60～450℃


Main technical parameters and performance indicators
Nominal diameter DN (mm)		15	20	25	32	40	50	65	80	100	125	150	200
Rated flow coefficient Kv	Single seat, double seat	5	7	11	20	30	48	75	120	190	300	480	760
Rated flow coefficient Kv	sleeve			11	20	30	48	75	120	190	300	480	760
Nominal pressure PN (MPa)		1.0 1.6 4.0 6.4
Rated stroke (mm)		8				12		20		25	40		50
Effective area C ㎡	LDZD type	100				200		400			600		1000
Effective area C ㎡	LDZS type	100			125			160			250
Allowable leakage amount	Hard seal 1/h	Generally: 10-4 times the rated capacity of the valve; Tight type: single and double seat: 1.2 × 10 ᯝ 7, sleeve 5 × 10 ᯝ 6 × valve customer fixed capacity
Allowable leakage amount	soft seal	Grade VI
Allowable pressure difference （MPa）	LDZD1 positive effect	6.4	5.09	2.91	1.85	2.18	1.33	1.52	0.99	0.62	0.60	0.69	0.39
	LDZD1 reaction	6.4	6.4	3.88	2.47	2.91	1.77	2.03	1.32	0.83	0.80	0.92	0.52
	LDQD2	6.4	6.1	3.5	2.3	3.0	1.9	1.9	1.5	0.93	0.84	0.65	0.47

1) The performance and indicators of this product comply with GB/T4213-92;

2) If the allowable pressure difference in the table is greater than the nominal pressure, the nominal pressure value shall be taken, and if it is less than or equal to the nominal pressure value, it shall remain unchanged;

3) The allowable values in the table are based on standard cylinder values, and different cylinders can be used to increase the allowable pressure difference.

Outline dimensions and weight tableUnit: mm
Nominal Diameter		15	20	25	32	40	50	65	80	100	125	150	200
A		Φ196				Φ232		Φ308			Φ394		Φ498
L	PN16、40	130	150	160	180	200	230	290	310	350	400	480	600
L	PN64	210	230	230	260	260	300	340	380	430	500	550	650
H	PN16、40	305	340	345	370	380	390	475	490	500	765	825	927
	PN64	320	350	354	372	382	397	473	475	517	805	882	815
	Bellows sealed type	375	409	414	431	441	468	555	570	613	855	915	1017
H1	PN16、40	50	53	58	70	75	83	93	100	110	125	143	170
H1	PN64	60	65	70	77.5	85	90	100	85	125	148	170	208
H2	PN16	115	115	121	130	140	153	178	190	200	260	320	360
	PN40	125	125	130	140	150	160	185	200	220	280	320	380
	PN64	150	150	160	170	180	200	230	250	282	310	430	480
H3	PN16、PN40	404	415	428	448	448	468	561	578	590	886	1008	1120
	PN64	365	430	498	528	528	530	535	540	600	890	1208	1305
	Bellows sealed type	395	465	478	509	509	548	641	658	670	976	1098	1210
Weight kg	Standard type	10	10	12	15	18	23	35	45	60	75	90	120
Weight kg	Bellows sealed type	12	12	14	17	20	26	38	48	64	79	95	125

remarks:

*Flange sealing surface type: PN10 and PN16 are convex surfaces, PN40 and PN64 are concave and convex surfaces, and the valve body is concave

*Structural length: According to GB12221-89 standard

*Execution mechanism gas signal interface: internal thread M10 * 1

*The valve body flange and flange end face distance can be manufactured according to user specified standards, such as ANSI, JIS, DIN, etc.