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Type Y696

2

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

1. Use qualified personnel when installing, operating,

and maintaining the regulator. Before installing, inspect
the regulator for any shipment damage or foreign
material that may have collected during crating and
shipment. Make certain the body interior is clean and
the pipelines are free of foreign material. Apply pipe
compound only to the male pipe threads.

2. Install the regulator using a straight run of pipe the

same size or larger as the regulator body (as shown in
figure 3).  Flow through the regulator body is indicated
by the flow arrow cast on the body. If a block valve is
required, install a full flow valve between the regulator
and the blanketed vessel.  For proper operation, the
regulator should be installed with the spring case barrel
pointed down. Key numbers referenced in this section
are shown in figure 4.

A regulator may vent some gas to the
atmosphere.  In hazardous or flammable
gas service, vented gas may accumu-
late, and cause personal injury, death, or
property damage due to fire or explo-
sion. Vent a regulator in hazardous gas
service to a remote, safe location away
from air intakes or any hazardous loca-
tion. The vent line or stack opening must
be protected against condensation or
clogging.

3. To keep the spring case vent from being plugged or

the spring case from collecting moisture, corrosive

Body Size and End Connection Style

(1)

See table 1

Maximum Allowable Inlet and Outlet Pressure

(2)

15 psig (1,0 bar)

Outlet Pressure Ranges

See table 2

Specifications

Pressure Registration

Internal

Spring Case and Vent Connections

1/4-inch NPT

Maximum Temperature Capabilities

(2)

Nitrile (NBR):

 

–20° to 180°F (–29° to 82°C)

Fluoroelastomer (FKM):

 

0° to 300°F (–18° to 149°C)

E

G

N

A

R

E

R

U

S

S

E

R

P

T

E

L

T

U

O

R

E

B

M

U

N

T

R

A

P

G

N

I

R

P

S

R

O

L

O

C

G

N

I

R

P

S

R

E

T

E

M

A

I

D

E

R

I

W

s

e

h

c

n

i-

5

o

t

2

.

c

.

w

.

c

.

w

s

e

h

c

n

i-

5

1

o

t

5

g

i

s

p

1

o

t

3

.

0

)

r

a

b

m

2

1

o

t

5

(

)

2

(

)

1

(

)

r

a

b

m

7

3

o

t

2

1

(

)

2

(

)

1

(

)

r

a

b

m

9

6

o

t

1

2

(

2

2

0

7

2

1

0

0

2

A

1

2

6

0

7

2

7

7

7

5

B

1

2

5

0

7

2

4

9

1

0

B

0

d

e

R

y

a

r

G

n

e

e

r

G

)

m

m

4

,

3

(

s

e

h

c

n

i-

5

3

1

.

0

)

m

m

0

,

4

(

s

e

h

c

n

i-

6

5

1

.

0

)

m

m

8

,

4

(

s

e

h

c

n

i-

7

8

1

.

0

g

i

s

p

8

.

2

o

t

1

g

i

s

p

5

.

3

o

t

2

g

i

s

p

7

o

t

4

)

r

a

b

9

1

,

0

o

t

9

6

0

,

0

(

)

r

a

b

4

2

,

0

o

t

4

1

,

0

(

)

r

a

b

8

4

,

0

o

t

8

2

,

0

(

2

0

2

7

2

1

1

8

0

A

0

2

2

0

7

2

4

6

6

0

Y

0

2

A

0

0

0

4

2

0

8

H

1

e

g

n

a

r

O

e

p

ir

t

s

n

e

e

r

G

r

e

v

li

S

)

m

m

4

,

6

(

s

e

h

c

n

i-

0

5

2

.

0

)

m

m

2

,

9

(

s

e

h

c

n

i-

3

6

3

.

0

)

m

m

3

,

0

1

(

s

e

h

c

n

i-

6

0

4

.

0

.

)

r

a

b

m

5

(

.

c

.

w

s

e

h

c

n

i-

2

s

e

s

a

e

r

c

n

i

e

g

n

a

r

g

n

ir

p

s

,

p

u

d

e

t

n

i

o

p

d

e

ll

a

t

s

n

i

n

e

h

W

.

n

w

o

d

d

e

t

n

i

o

p

d

e

ll

a

t

s

n

i

e

s

a

c

g

n

ir

p

s

n

o

d

e

s

a

b

s

e

g

n

a

r

g

n

ir

p

S

.

1

.

)

C

°

6

1

(

F

°

0

6

n

a

h

t

r

e

w

o

l

s

e

r

u

t

a

r

e

p

m

e

t

m

g

a

r

h

p

a

i

d

t

a

s

g

n

ir

p

s

e

s

e

h

t

h

ti

w

m

g

a

r

h

p

a

i

d

)

M

K

F

(

r

e

m

o

t

s

a

l

e

o

r

o

u

lf

e

s

u

t

o

n

o

D

.

2

Table 2.  Outlet Pressure Ranges

,

E

Z

I

S

Y

D

O

B

)

N

D

(

S

E

H

C

N

I

L

A

I

R

E

T

A

M

Y

D

O

B

n

o

r

I

t

s

a

C

l

e

e

t

S

l

e

e

t

S

s

s

e

l

n

i

a

t

S

C

y

o

ll

e

t

s

a

H

)

0

5

(

2

d

n

a

)

0

4

(

2

/

1

-

1

T

P

N

,

F

R

0

5

1

L

C

,

E

W

S

,

T

P

N

0

4

/

5

2

/

6

1

N

P

,

0

0

3

L

C

,

F

R

0

5

1

L

C

,

E

W

S

,

T

P

N

0

4

/

5

2

/

6

1

N

P

,

0

0

3

L

C

F

R

0

5

1

L

C

Table 1.  Body Sizes and End Connection Style

Summary of Contents for Fisher Y696

Page 1: ...ting the force of the control spring is overcome by pressure acting on the diaphragm This moves the disk away from the orifice allowing gas to flow from the vessel to the vapor recovery system As vessel pressure is reduced the force of the control spring causes the disk to move toward the orifice decreas ing the flow of gas out of the vessel As vessel pressure drops below the set point of the regu...

Page 2: ...5 psig 1 0 bar Outlet Pressure Ranges See table 2 Specifications Pressure Registration Internal Spring Case and Vent Connections 1 4 inch NPT Maximum Temperature Capabilities 2 Nitrile NBR 20 to 180 F 29 to 82 C Fluoroelastomer FKM 0 to 300 F 18 to 149 C E G N A R E R U S S E R P T E L T U O R E B M U N T R A P G N I R P S R O L O C G N I R P S R E T E M A I D E R I W s e h c n i 5 o t 2 c w c w s...

Page 3: ...up and Adjustment To avoid personal injury property dam age or equipment damage caused by bursting of pressure containing parts or explosion of accumulated gas never adjust the control spring to produce an outlet pressure higher than the upper limit of the outlet pressure range of that particular spring If the desired outlet pressure is not within the range of the control spring install a spring o...

Page 4: ...e the following steps can be performed 1 To inspect and replace the disk assembly key 25 or orifice key 27 remove the body cap assembly key 38 2 Remove the disk screw key 47 and cotter pin key 14 from the disk shut off stem key 40 if it is necessary to replace the disk assembly key 25 3 To inspect and replace the orifice key 27 loosen the union nut key 19 and separate the diaphragm case assembly f...

Page 5: ... to the pusher post key 8 12 Install the assembled parts in the lower casing key 20 Make sure that the lever key 9 fits in the pusher post key 8 and that the holes in the diaphragm align with the holes in the lower casing 13 Install the spring case key 23 on the lower casing assembly key 20 so that the vent assembly key 56 is correctly oriented and secure with the cap screws key 21 and hex nuts ke...

Page 6: ...2 Fluoroelastomer disk NACE 1D6405X0212 27 Orifice Stainless Steel 0L025335032 Stainless steel NACE 0L0253X0042 Key Description Part Number 28 Body NPT Screwed Cast iron 1 1 2 inch size 1B403419012 2 inch size 1B403519012 Steel 1 1 2 inch size 2P2573X0022 1 1 2 inch size NACE 2P2573X0032 Stainless steel 1 1 2 inch size 2P2573X0012 150 RF Flanged Steel 1 1 2 inch size NACE 22B4316X022 2 inch size 2...

Page 7: ...Type Y696 7 Figure 4 Type Y696 Assembly 43B0679 A A SECTION A A ...

Page 8: ...ress orimplied regardingtheproductsorservicesdescribedhereinortheiruseorapplicability Wereservetherighttomodifyorimprovethedesignsorspecificationsofsuchproductsatanytimewithoutnotice Fisher does not assume responsibility for the selection use or maintenance of any product Responsibility for proper selection use and maintenance of any Fisher product remains solely with the purchaser For information...

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