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ZSPC pneumatic piston cut-off valve Overview:

ZSPC-type pneumatic piston room temperature, temperature cut-off valve, pneumatic piston actuator and cut off the composition of the machinery. According to the valve sealing surface material can be divided into hard seal and soft seal: According to the structure of the spool can be divided into single-oriented flat and single-guided balance. Has the characteristics of simple structure, reliable action, close, close fast. For non-particulate material, no impurities in the gas, liquid medium, requiring close close fast, quick emptying of the automatic control system.

First, the model, specifications

model	Normal temperature type hard seal	Normal temperature type of soft seal	Medium temperature type of hard seal	Std hard-tight seal with handwheel	Normal temperature type soft seal with hand wheel	Medium temperature type hard seal with hand wheel
model	ZSP NC1- ( 16/64 ) BK	ZSP NC2- ( 16/64 ) BK	ZSP NC1- (40/64) B KG	ZSPC1- ( 16/64 ) BK	ZSPC2- ( 16/64 ) BK	ZSPC1- (40/64) BK
specification	DN20-200

Second, the main technical parameters and performance indicators
1, cut off the main technical parameters

Nominal pressure mm	20	25	40		50	65	80	100	150		200
Seat diameter mm	20	25	32	40	50	65	80	100	125	150	200
Rated flow coefficient Kv	6.5	10	15	25	40	65	100	125	260	350	540
Nominal pressure MPa	1.6; 4.0; 6.4
Travel mm	10		16			25		30	40		60
Flow characteristics	Go ahead
Medium temperature ℃	Soft seal: -40 ~ 150 (normal temperature type); Hard seal: -40 ~ 200 (normal temperature type), - 40 ~ 450 (medium temperature type)
Flange size, type	PN16 by JB78-59 smooth; PN40, 64 by JB / T79.2-94 concave
Body material	ZG230-450; ZG1Cr18NI9 Ti; ZG0Gr18N12Mo2Ti
Seat, spool material	1Cr18NI9; 0Cr18Ni12Mo2Ti
On the bonnet type	Ordinary (room temperature type); heat-chip (temperature type)

Note: Can provide GB, ANSI, JP, JIS, DIN and other flange structure type, flange distance can be determined according to user needs.

2, the implementation of the main technical parameters and agencies to cut off the relationship between

Nominal diameter mm	Actuator model		Cylinder diameter mm		Travel mm	Air intake thread		Remarks
	Normal temperature type	Medium temperature type	Normal temperature type	Medium temperature type		Normal temperature type	Medium temperature type	ZSP: Single acting ZSP: Double acting
20	ZSPA B-1	ZSPA B-1 ZSN-1	150	150	10	M16 × 1.5	M16 × 1.5
25
40		ZSPA B-2 ZSN-1		200	16
50
65	ZSPA B-2	ZSPA B-3 ZSN-2	200	300	25		M20 × 1.5
80
100					30
150	ZSPA B-3	ZSPA B-4 ZSN-3	300	400	40	M20 × 1.5	M24 × 2
200					60

3, performance indicators

Nominal pressure mm		20	25	40		50	65	80	100	150		200
Seat diameter mm		20	25	32	40	50	65	80	100	125	150	200
Soft seal leakage	Water test △ P = △ Pmax mlmin	0
Soft seal leakage	Pneumatic test △ P = 0.35MPa bubble number / min	1	1	2		3	4	6	11	18	27	45
Hard seal leakage	Water test MPa	4.0								3.0
	ml / min	0.24	0.30	0.38	0.48	0.60	0.78	0.96	1.2	1.125	1.35	1.8
	Gas test △ P = 0.35MPa ml / min	23.3	29.2	37.3	46.7	58	75.8	93.3	116.7	145.8	175	233.3
Cut off the time S		0.5		1			1.5		2	3		4
Rated travel deviation%		± 6

4, to allow the pressure difference:

Nominal diameter mm					20	25	40	50	65	80	100	150	200
Cylinder diameter mm					150		200		300			400
Air pressure KPa	500	Allow pressure drop	Machine off the air	Flow away	4.0	4.0	2.6	2.2	3.8	2.6	2.0	1.95	1.59
			Machine off the air	Flow off	4.0	4.0	4.0	3.1	3.1	3.2	1.6	2.0	1.63
			The whole machine open	Flow away	4.0	3.0	2.1	1.7	1.7	1.1	0.9	0.52	0.43
			The whole machine open	Flow off	4.0	4.0	4.0	4.0	4.0	3.6	2.7	3.4	2.2

Third, dimensions:

Nominal diameter DN			20	25	40	50	65	80	100	150	200
L	PN MPa	1.6	194	197	235	267	292	317	368	500	635
		4.0	194	197	235	267	292	317	368	500	650
		6.4	206	210	251	286	311	337	394	520	650
H			65	70	85	90	100	105	125	170	205
Without handwheel	H1	Normal temperature type	445	455	485	485	605	605	620	962	988
Without handwheel	H1	Medium temperature type	596	606	636	636	770	770	785	1178	1226
With hand wheel	H1	Normal temperature type	630	640	670	670	790	790	805	1087	1113
	H1	Medium temperature type	781	791	821	821	955	955	970	1303	1351
	H2		160	160	160	160	160	160	270	270	270
	H3		220	220	220	220	220	220	390	390	390

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