VMP-F

Producer: RSBP

VMP explosion arrester devices are the basic means of passive protection for process equipment in the event of an accident in accordance with EN 1127-1. They must be installed wherever there is an explosive dust/air atmosphere, e.g. in tanks, silos, separators, filters, sorters.

The rupture disc covers process openings in the protected equipment under normal operating conditions. It is perforated all around its circumference. The energy of the explosion ruptures the bursting disc and causes the flame and shock wave to escape. The overpressure in the equipment is reduced to safe levels and there is no destruction of the structure.

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Description
Technical features
Documentation
Installation

Description

Explosion-proof diaphragm VMP-F is a flat, rectangular stainless-steel panel. It is available in a single-layer version, so it is only suitable for protecting equipment operating at low operating pressures and without pressure pulses, with operating temperatures up to 100 °C. It is mounted without a top flange.

VMP-F is the simplest and most economical version of the explosion arrester.

Explosion-discharge membranes type VMP are certified in accordance with TP TC 012/2011 and EN 14797.

Advantages

Large variation in size, so that the diaphragm can be matched to many types of equipment.
Made of steel and resistant to mechanical damage.
Easy to assemble – only two steps to assemble according to ready-made drawing sets and assembly instructions.
Easy to maintain – we will give you a detailed operating manual describing the frequency of all actions. The customer’s employees are only required to visually inspect the cleanliness and integrity of the blast panel.
Simply replace after an accident. Can be installed without altering the design of the existing process equipment.
Only requires servicing once a year, reducing operating costs.
Suitable for operating temperatures up to 240°C. Resistant to mechanical damage, discharge or pressure surges.

Technical features

Size, mm	Explosion pressure release area (m2)	A – External explosion panel size (mm)	B – External explosion panel size (mm)
229 x 229	0,05	309	309
229 x 305	0,06	309	385
260 x 260	0,07	337	337
170 x 470	0,08	250	550
220 x 540	0,12	308	628
270 x 458	0,12	350	538
305 x 457	0,14	390	542
300 x 500	0,15	382	589
410 x 410	0,17	490	490
241 x 762	0,18	331	852
630 x 310	0,19	705	385
580 x 410	0,24	500	670
490 x 590	0,28	573	673
610 x 470	0,29	550	690
600 x 600	0,35	656	656
450 x 800	0,36	550	900
610 x 610	0,37	690	690
500 x 750	0,38	580	830
457 x 890	0,39	537	970
586 x 920	0,53	671	1005
588 x 908	0,53	680	1000
800 x 800	0,62	853	853
685 x 1100	0,75	765	1178
870 x 910	0,79	960	1000
920 x 920	0,83	1005	1005
915 x 1118	1,02	1000	1203
1020 x 1020	1,03	1106	1106
1118 x 1118	1,25	1202	1202
1130 x 1130	1,28	1220	1220
1000 x 2000	2	1090	2090

*Pressure relief devices are given according to the blast pressure relief area in order from smallest to largest.

** other VMP sizes on request.

VIDEO – HDR SYSTEM TEST – ACTIVE EXPLOSION SUPPRESSION MANUFACTURER: RSBP S.R.O.

Documentation

VMP F user manual

Installation

VMP F is supplied with an integrated frame and seal. Before installing the safety rupture disk, check:

Integrity of the original packaging;
The membrane itself and the seals are undamaged;
The connecting material is present, if it is included in the scope of delivery;
No damage to the indicator, if ordered.

The installation of rupture discs requires a design. It determines, among other things, the number of process openings on the equipment to be protected to release the explosion and the number of VMPs respectively, their type, the possibility of operation under existing conditions. The project is to be developed by a specialized company. For example, ATEX.CENTER.

The rupture discs are installed in accordance with the manufacturer’s instructions and the explosion protection project. The work consists of two basic steps. First, the mechanical installation is performed, followed by the installation and adjustment of the electrical part.

The installation of each membrane must be recorded in a special logbook or operating book with the date, initials and signature of the authorised person.

The scope of delivery includes:

Consignment note
EU Declaration of Conformity 2014/34/EU
Inspection certificate
Operating instructions

We will provide on request:

Wiring diagram of the indicator;
Technical description of the opening indicator;
Technical description of the spark protection relay;
Panel wiring diagram;
Checklist;
The operating logbook.

Maintenance

The maintenance manual is included in the scope of delivery and is used as a basis for the operator’s documentation. In this manual, the maintenance intervals are determined.

Maintenance of the membrane consists of periodic inspection for cleanliness and damage, corrosion. Basic rules:

All operations must only be carried out with the equipment switched off;
Inspect the VMP for cleanliness and damage every shift;
Perform dusting and screw connection checks at least every six months or more frequently depending on the operating conditions;
Instruct employees on safety measures when working near the explosive membrane immediately after its installation (hiring a new employee) and at least once a year thereafter – the VMP is classified as an injury-prone equipment;
Do not enter the frame space and safety area when the equipment is in operation.

The safety rupture disc may only be serviced by the manufacturer, RSBP, or its authorised representative. The service interval is at least once a year.

Optionally

VMP can be equipped with:

Open indicator. This is a diaphragm status indicator. If the VMP is opened the contact will be interrupted and the electrical circuit will be disconnected. The indicators can be magnetic or cable.
Mounting kits for G1, G2 and G indicators. To be supplied on request.
Intrinsic safety relay. Intrinsic safety relays are hazardous for life. The relay creates a boundary between the safe and hazardous area.
Flanged seals. As standard they are made of EPDM material. As an option it can be replaced with silicone (FDA).
Thermal insulation. Available on request.

Advantages of working with ATEX.CENTER

The customer will have no problems with the supply of components and service. ATEX.CENTER is an official distributor of the leading European distributor of explosion protection equipment RSBP spol. s r.o. Our specialists periodically confirm their qualification in his commission of expertise.