Системы МПХ

Automatic Gas Fire Suppression Systems featuring MPH cylinders are designed for extinguishing Classes A, B, C fire as well as live electrical equipment.

Order calculation of MPH modules

Description and technical specifications Fire extinguishing agents

Gaseous extinguishing agents (GEA) Novec 1230 Fluid, HFC-125, FM 200, and HFC-318 are used as fire suppression agents in gas fire suppression systems of the MPH series. GEA is stored in the cylinders pressurized with nitrogen as propellant gas.

MPH cylinder consists of:

lock and start device (ZPU)
die-welded high-pressure cylinder
submersible aluminium tube

The MPH cylinders are equipped with a lock and start devices (ZPU) with Dn33 and Dn50 passageway diameters, a built-in or external solenoid-actuated valve, a regular pressure gage or electric-contact gauge, and a bursting safety membrane.During the production cycle, all lock and start devices pass multi-stage quality control, and acceptance tests and are compliant with all international and Russian standards.

ASPT Spetsavtomatika company manufactures the MPH cylinders according to the certified technology of NACWP, Cylinders are produced by automated welding machines, with all components made of 09G2S steel, welded joints (seams) checked by visual, ultrasonic and capillary control methods, and with 100% of produced cylinders tested under hydraulic pressure no less than 10.0 MPa (100 bar).Cylinders are certified in compliance with TR CU 032/2013.

The MPH series gas fire extinguishing cylinders have advanced reliability and can be used at particularly complex facilities, including nuclear power plants, facilities of the heavy and chemical industries, and facilities in the oil and gas sector.A wide range of available sizes of the MPH series cylinders makes it possible to use them in the construction of technically complex systems with extended piping in order to minimize metal consumption of the system and provide the highest degree of reliability of the gas fire extinguishing system.

Operational work of MPH cylinders has two modes:

GEA storage mode (standby mode)
cylinder actuation and GEA release mode (active mode)

While in a standby mode, the cylinder is filled with GEA, installed on the site and switched to the automatic management and control system.

In the active mode, the locking device gets actuated and opens upon receiving electrical, pneumatic or mechanical impulse, discharging GEA stored in the cylinder through the pipeline and sprinkling nozzles into the protected premises.

Types of produced MPH gas fire suppression cylinders.

Cylinder type / GEA type	Working pressure, MPa	Diameter Locking device, mm	Balloon diameter, mm	Service life, years	HFC-125, FM-200, HFC 318, FK-5-1-12 (Novec 1230 Fluid)
MPH 65-Х-33	P(work) = 6,4	Dn=33	357 / 377	30	20, 40, 50, 60, 80, 100, 120 litres
MPH 65-Х-50	P(work) = 6,4	Dn=50	357 / 377	30	50, 60, 80, 100, 120 litres
MPH 55-Х-50	P(work)= 5,4 / 4,4	Dn=50	426 / 508	30	150, 180, 227 litres

Technical specifications of MPH gas fire suppression cylinders.

MPH cylinder	65-20-33	65-40-33	65-50-33(50)	65-60-33(50)	65-80-33(50)	65-100-33(50)	65-120-33(50)	55-150-50	55-180-50	55-227-50
Cylinder volume capacity, l	20	40	50	60	80	100	120	150	180	227
Container diameter, mm	357 / 377							426			508
Height without protecting cap, mm	536	751	858	965	1179	1393	1607	1526	1753	2109	1550
Height including protecting cap, mm	627	842	949	1056	1270	1484	1698	1566	1793	2149	1567
Height to discharge elbow axis, mm	426	641	748	855	1069	1283	1497	1383	1610	1966	1433
Empty cylinder weight, kg	29	49	56	63	71	88	100	139	158	188	164
Lock and release device	B0482	B0482	B0481 / B0482	B0481 / B0482	B0481 / B0482	B0481 / B0482	B0481 / B0482	B0481
The diameter of the conditional passage of the lock and release device, mm	33	33	33 / 50	33 / 50	33 / 50	33 / 50	33 / 50	50
Working pressure, MPa (kgf/cm2)	6,4 (65)							5,4 (55)		4,4 (45)
Test pressure, MPa (kgf/cm2)	9,6 (98)							8,2 (84)		6,6 (67)
Bursting safety membrane pressure, MPa (kgf/cm2)	от 7,4 (75) до 8,1 (81)
Maximum equivalent length, m	6							10
Number of possible cylinder actuations during service life, no less than, times	10
Locking device discharge nipple thread	1 7/8" - 12UN			1 7/8" - 12UN / 2 1/2"- 12UN				2 1/2"- 12UN
Maximum time of GEA discharge 95% by mass, s	10
GEA remaining in a cylinder, kg, not more than	0,5
Range of operation temperatures, ͦС	from -20 до +50 (from -40 до +55 - special designs)
Cylinder service life before cancellation, years	30

All produced MPH gas fire extinguishing cylinders pass multi-stage quality control including:

Pneumatic tests
Leak tests by helium leakage detector
Leak tests by helium leakage detector
Compliance with passport specifications

Refilling of MPH gas fire extinguishing cylinders is performed in compliance with technical specifications of the project at our own filling station.

Allowable fill coefficients for MPH series gas fire extinguishing cylinders.

GEA type	Fill coefficient, kg/l, no more than
HFC-125	0,9
HFC-227ea	1,1
Freon C318	1,1
FK-5-1-12 (Novec 1230 Fluid)	1,2

MPH cylinders are certified for compliance with EAEU TR 043/2017 and are accepted for use on the territory of the EAEU free trade zone - Russia, Belarus, Kazakhstan, Kyrgyzstan, Armenia, Vietnam, Iran, Singapore, Serbia (Egypt, Israel, India, China, Mongolia, Thailand, Moldova, Uzbekistan, Cuba are in the negotiations).

MPH cylinders have received Seismic Stability Certificate with a grading of 9 points on the MSK-64 scale, and they have also received Explosion Safety Certificate (Ex).

Gaseous extinguishing agents (GEA) Novec 1230 Fluid, HFC-125, FM 200, and HFC-318 are used as fire suppression agents in gas fire suppression systems of the MPH series.

Short description of gaseous extinguishing agents specifications:

HFC-125 (C2F5H)

HFC-125 is a colourless, non-flammable, low toxic gas.
Gas fire suppression systems utilizing HFC-125 as GEA have been widely used in Russia mainly because of their low prices.

Advantages:

Low price
High % of usage
High thermal stability (900°C)
It is an ozone-safe FEA, its ozone depletion potential (ODR) is 0.