5400 Vacuum Relief Valve

Double guide rail system, smooth stroke and less wear

Leakage is much lower than API2000 standard and guarantees high setting accuracy (±3%).

Full opening at 10% overpressure

The trim and seat assembly can be replaced on site

Supports ANSI, DIN and HG/ T20592-20635-2009 flanges

Demand consultation

Product Overview
Specifications
Downloads

Product Overview

Model 5400 vacuum relief valve is part of BasCo high performance breather valve series ,the excellent BasCo guide system makes its performance exceed standard valve on the market,it is suitable for inhalation conditions,providing vacuum protection and reducing medium evaporation.

Certifications
BasCo provides a full range of Vapour Control. It has obtained ATEX, CCS, EAC, Type Test Certificates and is equipped with a complete testing system. The products comply with domestic and international standards including ISO 16852, SH 3413, GB 13347, API 2000, and SY 0511. Safe, reliable and customized solutions and products can be provided according to users’ actual working conditions.

Specifications

Setting range

Model	Size	Pressure	Temperature
5410	1.5"(DN40)~12"(DN300)	0.2~4.3KPa(2~43mbar)	-45~260℃
5420	1.5"(DN40)~12"(DN300)	4.3~4.8KPa(43~48mbar)
5430	1.5"(DN40)~12"(DN300)	0.2~4.3KPa(2~43mbar)
5440	1.5"(DN40)~12"(DN300)	4.3~4.8KPa(43~48mbar)

Material

Body	Seat/Disc	Trim Sealin	Fastener	Counterweights	Gasket
Aluminum Stainless Steel Carbon Steel	Stainless Steel Aluminum	FEP Teflon Buna-N	Alvanized Carbon Steel Stainless Steel	Galvanized Carbon Steel Stainless Steel Aluminum Resin coated stainless steel	Buna-N Teflon Viton

5400 Series Breathing Valve Model Rules

Series Designator	Inlet Connection Size	Shell Material	Spool & Seat Ring Material	Spool Seal Material	Vacuum Setting	Options
5410 5420 5430 5440	2"-12"	1.Aluminum 4.Stainless Steel 5.Carbon Steel	1.Stainless Steel 2.Other	1.FEP 2.Buna-N 3.Viton 4.Others	n.InH2O m.mbar (units preceded by values)	O. No options A. Special Coatings B. Stainless steel weights C. Optional weight materials D. Optional Hardware E. Optional Gasket Material F. Optional FRP resin G. Vapor Jacket or Heat Tracing Tube J. Other

Key Parameter Table

Model	Inlet Connection In(mm)	A1 Total Length A1	A2 Total length H1	H1 Total length H1	H2 Total length H2	H3 Total length mm	H4 Total length mm	D1 Center Length mm
5400	1.5(40)	197	173	184	Variable value	150	Variable value	130
	2(50)	197	173	184		150		130
	3(80)	230	195	192		195 195 192		155
	4 (100)	271	230	218		229		180
	6 (150)	347	290	287		320		230
	8(200)	431	350	310		393		285
	10(250)	514	393	351		470		350
	12(300)	654	496	403		540		440

* Unit weight, indicating the net weight (in kilograms) of the valve at the standard set pressure (2mba pressure -2mbar vacuum), excluding the weight of the transport box. The total shipping weight needs to be increased by 20% (domestic only). Parameter content is for reference only, more requirements please contact us.