DeZURIK 1800, 140C User Manual

BULLETIN 623

APCO COMBINATION

AIR VALVES

JULY 2014

Custom Combination

Series 1800

Duplex Body

Series 140C

Standard Combination
Single Body

www.dezurik.com

APCO Combination Air Valves

Single Body Double Orifice

Option: Mushroom
caps for outlet

1" - 6" (25 - 150 mm) style

(1) Large Orifice

• Gives absolute protection to pipe lines

• Eliminates risk of collapsing line due to vacuum

• Exhausts air when line is being filled

• Allows air to re-enter immediately when
line drains

Lever Frame

Needle

(2) Small Orifice

• Exhausts small pockets of air which
collect when line is operating under
pressure

• Insures full efficiency of line
operation

• Conserves pump horsepower – no
restricted high points

Float Arm

Materials Used in Both Style
Combination Air Valves

Body, Cover, 1" - 4" (25 - 100 mm) ............ Ductile iron

Body, Cover, 6" - 8" (150 - 200 mm) .......... Cast iron

Float ........................................................... Stainless steel

Seat ........................................................... Buna-N

Lever Frame 1" - 4" size (25 - 100 mm) ..... Delrin

Lever Frame 6" - 8" size (150 - 200 mm) ... Cast iron
All other internal parts stainless steel or bronze

Poppet

Float

Built for 300 psi (2068 kpa) service

Specify if operating pressures
below 20 psi (138 kpa)

151C

8" (200 mm) Style

Bronze components meet current lead-free requirements.

Manufactured to AWWA C-512

ISO flange connections available

© 2014 DeZURIK, Inc.

2

www.dezurik.com

Sizing

1" (25 mm) 143C

Photo on previous page*

Physical Dimensions

Height - 10" (254 mm)
Width - 7" (178 mm)
Length - 11" (279 mm)
Weight - 35 lbs. (16 kg)

Inlet/Outlet

1" (25 mm) pipe thread

* Except poppet

125 & 250 lb. flanges
also available

6" (150 mm) 150C

Photo on previous page

Physical Dimensions

Height - 27.25" (692 mm)
Width - 13" (330 mm)
Length - 18.375" (467 mm)
Weight - 205 lbs. (93 kg)

Inlet

125 & 250 lb. flange

2" (50 mm) 145C

Photo on previous page

Physical Dimensions

Height - 12.25" (311 mm)
Width - 8" (203 mm)
Length - 14" (356 mm)
Weight - 75 lbs. (34 kg)

Inlet/Outlet

2" (50 mm) pipe thread

125 & 250 lb. flanges
also available

8" (200 mm) 151C

Drawing on previous page

Physical Dimensions

Height - 25.75" (654 mm)
Width - 17.5" (445 mm)
Length - 22.25" (565 mm)
Weight - 300 lbs. (136 kg)

Inlet

125 & 250 lb. flange

3" (80 mm) 147C

Photo on previous page

Physical Dimensions

Height - 15.5" (394 mm)
Width - 10" (254 mm)
Length - 16" (406 mm)
Weight - 100 lbs. (45 kg)

Inlet/Outlet

3" (80 mm) pipe thread

125 & 250 lb. flanges
also available
Height flanged 16.5" (419 mm)

4" (100 mm) 149C

Photo on previous page

Physical Dimensions

Height - 17.125" (435 mm)
Width - 11" (279 mm)
Length - 18" (457 mm)
Weight - 170 lbs. (77 kg)

Inlet/Outlet

4" (100 mm) pipe thread

125 & 250 lb. flanges
also available
Height flanged 19" (483 mm)

Outlet options

- Plain with hood

- Threaded

- Flanged

To size air valves for pipeline service use APCO Air Valve Computer or Apslide computer software

Outlet options

- Plain with hood
(as shown)

- Flanged

Single Body Specifications

Combination Air Valve sizes 1" (25 mm) through 8" (200 mm), (single body, double orifice) allows large
volumes of air to escape out the large orifice when filling a pipeline and closes when liquid enters the valve.
When the valve is closed and pressurized, the small air release orifice will open to allow small pockets of air
to escape automatically and independently of the large orifice.

The large orifice shall also allow large volumes of air to enter during pipeline drainage to break the vacuum.
The body inlet must be baffled to protect the float from direct forces of rushing air and water to prevent
premature valve shut-off.

The Buna-N seat must be fastened to the valve cover without distortion for drop tight shut-off. The floats shall
be heavy stainless steel. The plug or float shall be center guided through hex bushings for positive shut-off.

Valve exterior to be painted with universal metal primer paint.

All materials of construction shall be certified in writing to conform to ASTM specifications as follows:

Body & Cover 1" - 4" (25 - 100 mm) Ductile Iron ASTM A536 GR 65-45-12
Body & Cover 6" - 8" (150 - 200 mm) Cast Iron ASTM A126 GR.B
Float Stainless Steel ASTM A240
Needle & seat Buna-N
Plug Stainless Steel ASTM A276
Leverage frame Delrin/Cast Iron ASTM D4181/ASTM A126 GR.B

*Bronze components meet current lead-free requirements.

www.dezurik.com

3

There Are Basically Two Types of Air Valves:

Note: Please specify if pressure is below 20 psi

See Orifice Size Chart (next page)

Type 1: Air/Vacuum Valves with (1) large orifice to vent large volumes of air for efficient filling and draining

of pipelines. This protects against vacuum and water column separation or pipeline collapse.

Type 2: Air Release Valves with (2) small orifice for continuous venting of air pockets as they accumulate

in a pressurized pipeline.

When the above types are combined, the result is a combination air valve.

The Combination Air Valve is available in a single body double orifice shown on page 2, or in a duplex body
arrangement (see page 6).

The single body is most popular due to its smaller overall size and resulting space saving inside a valve vault.
It is available in 1" (25 mm) to 8" (200 mm) sizes.

How it Works

Sizes 1" (25 mm) through 6" (150 mm) incorporate a poppet (or plug) which rests freely inside the lever frame.
The center stem of the poppet has a small orifice through it. When water enters the main valve body it raises
the float and float arm which puts the needle, attached to the arm, in contact with the poppet stem while
lifting the poppet to the shut-off position against the large orifice.

As air accumulates inside the main valve body the water is displaced. The float arm falls away from the poppet
stem to expose the small orifice and the pocket of air is vented. Water re-enters the main valve body lifting
the float arm back to the shut-off position and the cycle repeats as air accumulates. As long as the main valve
body is under pressure, the poppet stays closed because the pressure differential across the large orifice is
more than the poppet can overcome.

If, however, a negative pressure occurs inside the main valve body, the poppet will drop open to allow air in
and prevent a vacuum from forming in the pipeline.

Size 8" (200 mm) functions in the same manner, but, instead of a poppet, a float is used for shutting off the
large orifice and a separate internal float operated lever mechanism is incorporated with a small orifice for
venting smaller pockets of air when the system is pressurized.

Every Combination Air Valve is hydrostatically seat and shell tested before it leaves our factory to insure quality
performance in the field.

Where to Install
Typical pipeline showing its hydraulic gradient & the position of

necessary APCO air valves

APCO Combination Air Valve

at peaks and sharp change in gradient due to
possibility of column separation and vacuum

APCO Hydraulically Controlled Air/Vacuum Valve

where secondary surges due to rejoining of
previously separated water column could occur

APCO Air Release Valve

on long ascending stretch at
1/4 to 1/2 mile intervals

Pump

or

Datum

APCO Air/Vacuum Valve on pump discharge before check valve (not necessary for pumps with positive suction head)
APCO Hydraulically Controlled Air/Vacuum Valve where a discharge gate valve is normally closed during pump start-up to develop head

Note: Installing manways at intervals in larger size pipelines provides an excellent point to install air valves

Hydraulic Gradient

APCO Hydraulically Controlled
Air/Vacuum Valve

where secondary surges due to rejoining of
previously separated water column could occur

APCO Combination Air Valve

at peaks and sharp change in gradient due to
possibility of column separation and vacuum

APCO Air Release Valve

on long horizontal and descending

stretch at 1/4 to 1/2 mile intervals

or

or

Reservoir

Discharge

APCO Air/Vacuum Valve

at peaks and sharp change in gradient near end of

line where no significant amount of air is anticipated

or

Air/Vacuum Valve

Air Release Valve

Combination Air Valve

Hydraulically Controlled
Air/Vacuum Valve

4

www.dezurik.com

Discharge Capacities For Combination Air Valve

Pressure Differential Across Valve, psi

1"

2"

3"

6"

8"

Curves shown are actual flow capacities at 14.7 psi barometric pressure and 70° F temperature based
on actual test. These figures are not only the flow capacities across the orifice but flow across the
entire valve. In the test set-up, approach velocity to the valve is negligible therefore actual capacity
exceeds the values shown on chart.

Test conducted by: Phillips Petroleum Company Engineering Department - Test Division Edmond Plant

6

Do not exceed 5 psi when admitting air

5

4

3

Do not exceed 2 psi when exhausting air

2

1

0.5

1 2 3 4 5 7 10 20 30 50 100 200 300

Air Flow Through Valve in Standard Cubic Feet of Fee Air Per Second (scfs)

Note: Moist air may require large sizes

Valve Size and Model No.

Orifice Sizes up to 300 psi (3068 kpa)

Model (1) Large Orifice (2) Small Orifice

143C

145C

147C

149C

150C

151C

Working Pressure

1"
25

2"
50

3"
80

4"

100

5"

125

6"

150

.078

.094

.094

.094

.125

.156

2

2

2

2

3

4

143C

145C

147C4"149C

150C

151C

Inch
Millimeter

www.dezurik.com

5

Custom Combination Air Valves

Each Custom Combination Air Valve consists of one
APCO Air/Vacuum Valve, one APCO Air Release
Valve and an optional one DeZURIK Butterfly Valve,
shipped completely piped and assembled. Price
of each Custom Combination Air Valve includes 1"
(25 mm) piping and 1" (25 mm) gate or ball valve.

Available in 125, 250, 600 and 900 psi (862, 1724,
4137, 6205 kpa) classes for those special jobs where
you want the very best.

Custom Combination Air Valves are recommended
where operating pressures exceed 300 psi
(2068 kpa) or size requirements exceed
4" (100 mm).

Series 1800

200A

Air

pressure

valve

Sizing

To determine the correct size Single Body or Duplex
Body Combination Air Valves to use on each high
point of the pipeline, refer to Bulletin 610, use the
APCO Air Valve Computer (available on request) or
you may send a copy of your pipeline profile to our
engineering department.

Another feature to recommend the use of Custom
Combination Air Valves is the side mounted Air
Release Valve which can be any of four valves as
shown in the chart on the next page. With the
addition of the Air Release Valve the orifice is much
larger and hence the venting capacity much greater
than the orifices in the single body Combination
Air Valve. This is important where large volumes
of air are anticipated after the pipeline is filled and
operating.

Series 1100A

200A

Air

pressure

valve

Seat Detail

Air/Vacuum Valve

125 lb: 14" (350 mm) & larger

250 lb: all sizes

Series 1800

Size Model Width

4"

100

6"

150

8"

200
10"

250
12"

300
14"

350
16"

400
18"

450
20"

500
24"

600

Inch
Millimeter

1804

1806

1808

1810

1812

1814

1816

1818

1820

1824

Air

&

Vacuum

Valve

Combination
Air/Vacuum
w/Air Release Valve

125# 250#

.188"/5mm

Orifice

19.5"
495

22.75"
578

25.5"
648

27.875"
708

32.875"
835

41.875"

1064

45.5"
1156

42"

1067

46"

1168

53"

1346

20.25"
514

22.75"
578

24.75"
629

26.75"
679

31.375"
797

30.75"
781

32"
813

34"
864

40"

1016

48"

1219

Gate or
Ball Valve

Height

.156"/4mm

Orifice

20.625"
524

23.125"
587

25.25"
641

27.375"
695

31.375"
797

30.75"
781

32"
813

34"
864

40"

1016

48"

1219

Seat detail

Air/Vacuum Valve

125 lb: 14" (350 mm) & larger

250 lb: all sizes

Series 1100A

Size Model Width

4"

100

6"

150

8"

200
10"

250
12"

300
14"

350
16"

400

Inch
Millimeter

1104A

1106A

1108A

1110A

1112A

1114A

1116A

Air

&

Vacuum

Valve

Retainer Plate

Butterfly

Valve

Combination
Air/Vacuum
w/Air Release
with Butterfly Valve

125# 250#

.188"/5mm

Orifice

19.5"
495

22.75"
578

25.5"
648

27.875"
708

32.875"
835

41.875"

1064

45.5"
1156

27.25"

40.75"

43.25"

23.5"
597

692
31"

787

33.5"
851

1035

39.5"

1003

1099

Gate or
Ball Valve

Height

.156"/4mm

Orifice

25"
635

27.25"
692

31.5"
800

34"
864

40.75"
1035

39.5"
1003

43.25"
1099

6

www.dezurik.com

Model Size

200A

200

205

206

1"
25

2"
50

2"
50

2"
50

Table of Orifice Sizes

Maximum orifice which can be used with following pressures (psi/kpa)

10
69

.313"8.313"

.5"
13

X X X X

X X X X X X X X X X X X

25

1725034575517

.313"

8

.5"
13

8

.5"
13

.25"

.5"
13

6

100
689

.188"5.188"

.375"10.375"

.5"
13

125
862

5

10

.375"

10

150

1034

188"

.375"10.219"

.375"10.219"

200

1379

.156"

5

250

1724

.156"

4

.219"

6

.219"

6

300

2068

.156"

4

.219"

6

.219"

6

500

3447

4

6

6

X X X

X X X

.219"

6

800

5516

.125"

3

1500

10342

X

.094"

2

Inch
Millimeter

Standard orifices are in gray

Duplex Body Specifications

The Custom Combination Air Valve Series 1800 shall be heavily designed cast iron body to allow large volumes
of air to escape through the orifice when filling the pipeline and shall shut off water tight, when the water
enters the valve. The Custom Combination Air Valve shall also permit large volumes of air to enter through
the orifice when the pipeline is being drained to prevent vacuum from forming and water column separation.
The valve shall consist of a body, cover, baffle, float and seat. The baffle will be an integral part of the body,
designed to protect the float from direct contact of the rushing air and slugs of water to prevent premature
shut-off. The seat shall be Buna-N fastened into the valve cover without distortion and be easily replaced.
The float shall be stainless steel and be center guided at each end for positive seating.

The Air/Vacuum Valve shall have the outlet covered with either a steel protector hood or be threaded or
flanged. (Engineer to select outlet.)

The Automatic Air Release Valve shall be designed to operate under pressure to allow entrapped air inside the
pipeline to escape. The shut-off prevents water from escaping. The Air Release Valve will then stay closed
until more air accumulates and the opening cycle will repeat automatically. The Air Release Valve float shall
be heavy stainless steel.

When Series 1100A is specified, a DeZURIK Butterfly Valve, wafer style shall be supplied for isolation
service. The Butterfly Valve shall be freely interchangeable without the need for special tools. The seat must
be Buna-N, molded with a steel flanged ring inside for high strength and tight seating. The disc must pivot
eccentrically to minimize operating torque. The shafts must be stainless steel and double sealed with O-rings
to prevent leakage.

The Custom Combination Air Valve Series 1800 and Series 1100A shall be furnished completely assembled
and pressure tested from the factory as a complete unit ready for installation on the pipeline.

All materials of construction shall be certified in writing to conform to ASTM specifications as follows:

Valve bodies Cast Iron ASTM A126 GR.B
or Ductile Iron ASTM A536 GR. 65-45-12
Shafts Stainless Steel ASTM A270
Seats Buna-N
Floats Stainless Steel ASTM A240
Exterior primer Universal Metal Primer

*Bronze components meet current lead-free requirements.

Valve to be Series 1800 Custom Combination Air/Vacuum/Air Release Valve or Series 1100A Custom
Combination Air/Vacuum/Air Release Valve with isolation Butterfly Valve.

www.dezurik.com

7

Sales and Service

For information about our worldwide locations, approvals, certifications and local representative:

Web Site: www.dezurik.com E-Mail: [e-mail]

250 Riverside Ave. N. Sartell, Minnesota 56377 • Phone: [phone] • Fax: [phone]

DeZURIK, Inc. reserves the right to incorporate our latest design and material changes without notice or obligation.

Design features, materials of construction and dimensional data, as described in this bulletin, are provided for your information only

and should not be relied upon unless confirmed in writing by DeZURIK, Inc. Certified drawings are available upon request.

Printed in the U.S.A.