Emerson Y692 Datasheet download pdf (Page 7)

Bulletin 74.1:Y692

Ordering Information

When ordering, specify:

1. Type of gas being controlled (nitrogen fuel gas,

etc.); list any factors such as impurities in the gas

that may affect compatibility of the gas with the

regulator trim parts.

2. Specic gravity of the gas

3. Temperature of the gas

4. Range of owing inlet pressures to regulator

5. Flow rates

a) Minimum controlled ow

b) Normal ow

c) Maximum ow

6. Line size and end connection size of adjacent piping.

Adjacent downstream piping must be the same

size as the regulator body or longer.

7. Vessel size

Capacity Information

Table 5 gives the typical regulating capacities at

selected inlet pressures and outlet (control) pressure

settings. Flows are in SCFH (60°F and 14.7 psia)

of 0.97 specic gravity nitrogen. For gases of other

specic gravities, multiply the given capacity of nitrogen

by 0.985 and divide the given capacity by the square

root of the appropriate specic gravity of the gas

required. Then, if capacity is desired in normal cubic

meters per hour at 0°C and 1.01325 bar, multiply

SCFH by 0.0268.

To determine wide-open ow capacities for relief

sizing, use the following formula:

Q = C

SIN DEG

520 3417

GT C

where,

= gas sizing coefcient from Table 6

= C

or 35 from Table 6

G = gas specic gravity (air = 1.0)

1abs

= inlet pressure, psia (add 14.7 psi to gauge inlet

pressure to obtain absolute inlet pressure)

Q = ow rate, SCFH

T = absolute temperature in °Rankine of gas at inlet

1 2 3 4 5 6 7 8 9 10 11 12

Comments to this Manuals

No comments

Emerson Y692 Datasheet Page 7

Comments to this Manuals

Related products and manuals for Unknown Emerson Y692