5400 Vacuum Relief Valve

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5400 Vacuum Relief Valve

Dual rail system for smooth strokes and low wear

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

Full opening at 10% overpressure

Spool and seat assemblies are field replaceable

Supports ANSI, DIN, and HG/T20592~20635~2009 flanges.

Demand consultation

Product Overview
Specifications
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Product Overview

The Model 5400 Single Suction Valve is part of BasCo's line of high performance PVRV, with an excellent BasCo guide system that outperforms standard valves on the market for suction conditions, providing vacuum protection while reducing evaporation.

Specifications

Setting range

Model	Size	Vacuum	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)

Structure Material

Shell	Seat/Disc	Spool seal	Fastener	Counterweights	Gasket
Aluminum Stainless Steel Carbon Steel	Stainless Steel Aluminum	FEP Teflon Buna-N	Galvanized 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 Number	Inlet Connection In(mm)	A1 Overall Length A1	A2 Overall length H1	H1 Overall length H1	H2 Overall length H2	H3 Overall length mm	H4 Overall length mm	D1 Center Width mm
1.5(40)	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, which indicates the net weight in kg of the valve at standard set pressure (2 mba pressure - 2 mbar vacuum), excluding the weight of the shipping case. Add 20% to the total weight for transportation (domestic only). Parameters are for reference only, please contact us for more information.