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The field of application
Pressure reduction block PGB-15V-2-0,6-OG-U1-SG  with gas consumption metering unit KI-STG-100/400 is assigned for purification from contamination and fiscal registration of volume consumption and natural gas pressure reduction from high to average and low values according to state standard GOST 5542. The unit automatically maintains the pressure in required range and switches the gas supply off in the event the pressure rises or falls beyond acceptable levels. The unit is used in gas distribution and consumption systems.
Main technical characteristics
The block is assigned for open-air operation in macroclimate regions with temperate climate in U-type construction and placement category 1 according to GOST 15150.
Estimated snow load is 120 kgforce/m2 in accordance with II territory region requirements, and wind load 38 kgforce/m2 – III territory region according to SNiP 2.01.07-85.
In the block with technological equipment class of explosion safety of the area corresponds with PUE- В-1а.
Block fire safety category corresponds with NPB 105-03:
– In the technological compartment – A
– In CIE&A - G
Main parameters and characteristics of the block should correspond with the information noted in Table1.

Table 1

Designation of parameters and characteristics

Values

1

2

Outlet pressure range of regulator range:

output 1 (Р out1), МPа

output 2 (Р вout2), МPа

 

0,06…0,6

0,06…0,6

Set range for switching safety blow-off valve, МPа

0,3 …0,7

Set range for switching safety stop valve:

In case of output pressure falling, МPа

In case of output pressure rising, МPа

(0,15…0,5)Рout.

(1,25…1,5)Рout.

Metering complex

KI-STG-B-150/1600-10А-I-M

Gas flow meter

STG-150-1600

Gas volume corrector

BK-10А-І

Metering range (Qmin /Qmax)

1:30

Qmin, m3/h in normal conditions

50

Qmax, m3/h in normal conditions

1600

Metering range of absolute pressure, МPа

0,1…1,0

Metering range of gas temperature, °С

-20… 50

1

2

Limits of allowed main relative error of volume differential, %:

- consumption range from 0,2 Qmax to Qmax

- consumption range from Qmin to 0,2 Qmax

 

 

±1,5

±2,5

Maximum capacity of the registration unit in Рin=0,3 МPа (Рin=Рвых – unit operating without reduction):

output 1, m3/h

output 2, m3/h

 

 

 

6400

6400

Maximum differential pressure at the metering complex, kPa

2,45

Purification efficiency from external parts of 10 micrometer size, %, not less

98

Filter maximum differential, kPa, not more

10

Dimensions, not more (LxWxH), m

6,55х3,12х3,1

Mass, not more, kg

7000

Block life time, years, not less

15

 

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