Pneumatic thin film low-temperature regulating valve

NegotiableUpdate on 05/14

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

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Overview

Product model: ZMAP-D nominal diameter: DN15~200mm nominal pressure: PN16~64MPa applicable temperature: -60~-250 ℃ main materials: carbon steel, stainless steel, chromium molybdenum steel applicable medium: liquid oxygen, liquid nitrogen, etc. Drive mode: Pneumatic design standard: GB/T17213 flange standard: GB/T9113, JB/T79, HG20594 and other standards Inspection standard: GB/T4213 Connection form: flange (FF RF RTJ), welding (SW BW), thread (applicable to 1 "or less)

Product Details

1、 Main technical performance indicators

Leakage rate: Single seat valves and small flow valves are less than 10-4 of the rated capacity of the valve

Double seat valve, 5 × 10-3 less than the rated capacity of the valve

Return difference: with locator, less than 3% of the full stroke

Basic error: with locator, less than ± 3 of the full stroke

Note: Standard V-shaped polytetrafluoroethylene packing is used.

2、 Main technical parameters

Nominal diameter (mm)
Valve seat diameter (mm)		3	4	5	6	7	8	9	10	12	15	20	26	32	40	50	66	80	100	125	150	200
Flow coefficient KV	Small flow valve	0.08	0.12	0.20	0.30	0.50	0.80	1.00	--	--	--	--	--	--	--	--	--	--	--	--	--	--
	Single seat valve	--	--	--	--	--	--	--	1.2	2.0	3.2	5.0	8	13	22	32	50	80	120	200	280	450
	double-seat valve	--	--	--	--	--	--	--	--	--	--	--	10	16	25	40	72	100	160	250	400	630
Rated stroke (mm)		10											16		25		40			60
adjustable range		30：1
Nominal Pressure		Standard products 1.6, 4.0, 6.4MPa;
Valve core form		Single and double seat valves are through cast spherical valves, while small flow valves are through forged valves
flow characteristics		Equal percentage, straight line, quick opening
mode of action		Air open type, air closed type
Operating Temperature		-250～60℃
Flange Standard		Compliant with JB78-59 and JB79-59 standards, can be ordered and produced according to JB/T79.1-94, JB/179.2-94, HG20592-2009, ANSI, JIS, DIN and other standards
actuator		ZMAB pneumatic thin film actuator, ZHAB precision small pneumatic thin film actuator
Can be equipped with accessories		Positioner, solenoid valve, air filter pressure reducing valve, limit switch, valve position feedback device, emergency action device, handwheel mechanism, etc

Note: Products with working temperature, nominal pressure, and nominal diameter exceeding the listed range can be resolved through negotiation with our company.

3、 Medium temperature range

Nominal Diameter Coordinate dimension H (mm) for takeover Temperature range (℃)	D1	D2	D3
	-60 ~ -100	-100~ -200	-200 ~ -250
G1/2,G3/4,20~50	500	700	900
65~100	600	800	1000
125~200	700	900	1100

Note: Products with working temperature, nominal pressure, and nominal diameter exceeding the listed range can be resolved through negotiation with our company.

4、 Main component materials

parts name	valve body	Core Seat	filler
material	Cast stainless steel (ZG1Cr18Ni9Ti, ZGOCr18Ni12Mo2Ti), etc	1 CR 18 by 9 Ti 、 OCR 18 by 12 mo 2 T absolution. COM /	V-shaped polytetrafluoroethylene

5、 Flange distance and external dimensions

Nominal Diameter	L（mm）			H2（mm）		H1（mm）		D（mm）	D1（mm）	D2	D3	n-d
Nominal Diameter	PN1.6	PN4.0	PN6.4	air open	Qi Guan	Small flow valve single seat valve	double-seat valve	D（mm）	D1（mm）	D2	D3	n-d
G1/2、G3/4	80			412	365	19	--	230	135	160	190	--
20	180	180	190	492	445	74	--	280	235	260	290	8-φ14
25	185	190	200	440		99	104		235	260	290
32	200	210	210	443		105	107		255	285	315
40	220	230	235	489		117	127	325	280	305	355	8-φ16
50	250	255	265	499		132	132	325	310	340	370	8-φ16
65	275	285	295	641		165	175	410	345	375	410	10-φ16
80	300	310	320	644		168	185		370	405	440	10-φ18
100	350	355	370	653		177	202		430	460	490	12-φ18
125	410	425	440	784		225	250	495	470	525	560	16-φ18
150	450	460	475	782		233	260		550	590	630	16-φ18
200	550	560	570	779		272	302		660	700	740	20-φ18

Residential: The flange distance meets the JB79-59 standard