Vacuum Negative Pressure Safety Valve, ZG1Cr18Ni9Ti

Name: Vacuum Negative Pressure Safety Valve, ZG1Cr18Ni9Ti
Availability: InStock
Rating: 5 (1 reviews)

Key Specifications / Features

Request a quote

Detail Information

Vacuum negative pressure safety valve is used for negative pressure system whose temperature is not higher than 200℃. When negative pressure inside container is higher than allowed value, the valve opens automatically and absorbs air. When negative pressure reaches to allowed value, the valve closes automatically to protect equipments and system. When blow off valve is not opened causing negative pressure, vacuum negative pressure safety valve will open automatically to protect equipment from being damaged.

Materials

Part Name	Materials
Body	ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti
Base	1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti
Adjusting ring	1Cr18Ni9Ti, 1Cr18Ni12Mo2Ti
Bonnet	ZG1Cr18Ni9Ti, 1Cr18Ni9Ti
Stem	1Cr18Ni9Ti, 1Cr18Ni12Mo2Ti
Spring	50CrVA, Coated Teflon

Parameter

Working temperature	≤200℃
Suitable medium	Nitric acid, acetic acid

Dimensions

Nominal Diameter DN(mm)	Dimensions(mm)
Nominal Diameter DN(mm)	D	D1	D2	Z-φd	b	f1	H
15	95	65	45	4-14	14	2	110
20	105	75	55	4-14	16	2	130
25	115	85	65	4-14	16	2	150
32	140	100	78	4-18	18	2	180
40	150	110	85	4-18	18	3	200
50	165	125	100	4-18	20	3	221
80	200	160	135	4-18	22	3	245
100	220	180	155	8-18	22	3	253
125	250	210	185	8-18	24	3	280
150	285	240	210	8-23	24	3	329
200	340	295	265	8-23	26	3	377
250	395	350	320	12-23	28	3	440