Emerson 912N Arkusz Danych Pobierz pdf (Strona 2)

Bulletin 71.1:912N



See Table 1



 1/4 NPT

 1/4 or 3/8 NPT



(1)

250 psig (17,2 bar)



(1)

See Table 1



(1)

 20 psig (1,4 bar)

  

 3 psid (0,21 bar differential) above outlet

pressure setting; provide external relief if start-to-

discharge point exceeds 3 psid (0,21 bar differential)

(see Table 1).



0.073 or 0.094-inch (1,9 or 2,4 mm)









See Tables 2 and 3



 

 See Table 1

 Adequate only for relieving minor

buildup situations such as those caused by chips

or dirt blocking the seat partly open; for major

malfunctions, external relief is required according

to the Overpressure Protection section



(1)

-20° to 160°F (-29° to 71°C)





Internal



 1/8 NPT tapped

with removable screen

 

Constructions Without Handwheel: Over body outlet

Handwheel Constructions: Over body inlet



1.3 pounds (0,6 kg)



 Zinc

 Zinc

 Plated carbon steel

 Fluorocarbon (FKM) disk

with zinc lever, stainless steel lever pin and rod, and

plated carbon steel lever screws

 Nitrile (NBR)/Nylon (PA)

 Plated steel

  Plated steel

  Plated steel

spring wire, except stainless steel spring wire for

control spring 1L507937022

 

 Stainless steel spring wire

 Brass and zinc

 

  Plastic



 

 Brass, zinc, and steel

  Composition

  304 Stainless Steel

1. The pressure/temperature limits in this Bulletin or any applicable standard limitation should not be exceeded.

downward and the valve disk moves away from the orice.

912N Series regulators include an internal relief valve for

overpressure protection.



The 912N Series have outlet pressure ratings lower than their

inlet pressure ratings. Although the internal relief valve provides

very limited downstream overpressure protection, complete

downstream protection is needed if the actual inlet pressure

exceeds the outlet pressure rating.

Overpressuring any portion of these regulators may cause

leakage, damage to regulator parts, or personal injury due to

bursting of pressure-containing parts or explosion of accumulated

gas. Provide appropriate overpressure protection devices to

ensure that none of the limits found in the Specications section

or Table 1 will be exceeded.

Regulator operation with normal operating limits does not

preclude the possibility of damage from external sources or

from debris in the gas line. A regulator should be inspected for

damage after any overpressure condition.



912N Series regulators may be installed in any position;

however, the spring case vent should be pointed down on

outside installations. If gas escaping through the internal

relief valve could constitute a hazard, the spring case vent

should be piped to a location where escaping gas will not

be hazardous. If the vent will be piped to another location,

obstruction-free tubing should be used and a screened

vent should be installed on the end of the vent pipe. On

all installations, the vent or end of the vent pipe must

1 2 3 4

Bulletin 71.1:912N 1

Komentarze do niniejszej Instrukcji

Brak uwag

Emerson 912N Arkusz Danych Strona 2

Komentarze do niniejszej Instrukcji

Powiązane produkty i podręczniki dla Nie Emerson 912N