Product Center

Dedicated to precisely empowering industrial security

Pressure Relief Panel Device - DVPNL

Keywords:

Pressure Relief Panel Device - DVPNL

Category:

Relief device

DVPN pressure-relief panel device

Product accessories:

Detailed Introduction

The conventional explosion-relief solution for energy-storage cabinets or enclosures involves installing an explosion-relief panel on the top of the enclosure. For typical energy-storage applications, these panels are made of DVPU material. However, since the relief panel is permanently exposed to outdoor conditions—subject to rain, snow, hail, extreme cold, and intense heat—it is necessary to provide an external thermal insulation layer and a weatherproof protective cover. Unfortunately, once installed, this external protective layer protrudes beyond the top of the enclosure, increasing the risk of damage from collisions during transportation and on-site installation and assembly. This, in turn, leads to additional costs for the owner associated with replacing and maintaining the relief panel.

Compared with conventional DVPU explosion-relief panels for energy storage, the DVPN explosion-relief panel innovatively positions the thermal-insulation module beneath the relief panel—between the relief panel and the interior of the cabinet. This design significantly reduces the protrusion height after installation, by approximately 40 mm compared with the conventional DVPU explosion-relief panel for energy storage.

Secured to the cabinet body with bolts, facilitating installation and maintenance.
It is internally lined with thermal insulation cotton, providing the same thermal performance as the cabinet body.

Product Name	DVPNL
Operating ambient temperature	-40℃ ~ +60℃
Static opening pressure	0.01 MPa ± 25% at 22°C
Vacuum/Back Pressure	-0.003 MPa
IP rating	IP66
Work stress	0.1 MPa(A) ± 2%

Single-layer SUS 304
Silicone foam, UL94 V0 (-55°C ~ +200°C)
Includes flange + silicone foam
Thermal conductivity of thermal insulation cotton:

- ≤0.034 W/(m·K) (0℃)

- ≤0.039 W/(m·K) (40℃)

Vibration-resistant design

Diameter (mm)	External dimensions (mm)	Relief area (mm²)
230×305	330×405	68000
305×457	405×557	136000
400×400	500×500	160000
400×700	500×800	280000
457×610	557×710	274000
378×810	450×882	300000
457×762	557×862	341000
457×915	557 times 10 to the power of 15	414000
610×610	710×710	367000
610×762	710×862	459000
610×915	710×1015	552000

EN14994
EN14797
NFPA68

First, select the type of explosion-relief panel product, and choose either top insulation or bottom insulation based on your requirements.

The thickness direction of the upper thermal-insulation venting panel extends above the mounting interface, providing superior and more reliable weather resistance and enabling long-term outdoor use. In contrast, the thickness direction of the lower thermal-insulation venting panel lies below the mounting interface, which helps save space above the enclosure, facilitating transportation and storage.

Secondly, provide the corresponding parameters and select the size of the pressure-relief panel through compliant calculations.