Ross Controls INLINE User Manual

12

Series 19 Flow Control Valves

Compact, Low Profile Flow Control Valves

ROSS flow control valves provide high air flow rates into a cylinder, and
precisely controlled flow rates out of the cylinder. The adjustable flow
can range from near zero to full flow.

Selecting flow control valves with sufficient
flow capacity is important so that they do
not become the limiting factor in the cylinder
control system. Full flow capacity should
match that of the control valve to keep
cylinder motion smooth and predictable in
both directions.

Large knob for easy hand adjustment.
Turn clockwise to reduce controlled flow.

Long thread engagement gives
precise adjustment.

Compact size, low profile.

Brass stem gives visible indication of flow
rate in controlled direction (port 2 to 1).

Non-rising adjustment knob.

TYPICAL PERFORMANCE CURVE

Full

No. of Turns from 0

to Maximum Flow

1/4, 3/8

Controlled Flow Rate

0

Turns of Adjustment Knob

High flow capacity in free-flow direction
(port 1 to 2). Same high flow available
in reverse direction.

Positive locking. Prevents change of
adjustment knob due to vibration or
tampering.

1/2, 3/4
1, 1-1/4

. . . 14
. . . 12
. . . 24

Port numbers cast into body
match flow symbols on name tag.

Combination check poppet
and metering device.

Valve Port Valve Model Avg. CV Dimensions inches (mm) Weight

Type Size Number (Fully open) A B C lb (kg)

Z 1/2 1968E4007 7.5 3.8 (96) 1.6 (40) 3.2 (82) 0.8 (0.4)
3/4 1968E5007 8.3 3.8 (96) 1.6 (40) 3.2 (82) 0.8 (0.4)
Z 1 1968E6007 17 5.0 (127) 2.5 (64) 4.5 (113) 2.1 (1.0)
1¼ 1968E7007 22 5.0 (127) 2.5 (64) 4.5 (113) 2.1 (1.0)

STANDARD SPECIFICATIONS: For valves on this page.
Ambient/Media Temperature: 40° to 175°F (4° to 80°C).
Flow Media: Filtered air; 5 micron recommended.

2

Dirt-tolerant poppet design. Available in alternate
materials for extreme temperature applications.

Pressure Range: 5 to 150 psig (0.3 to 10 bar).
Port Threads: NPT standard, BSPP. F or BSPP threads add a “D”

prefix to the model number, e.g. D1968E2007.

1

IMPORTANT NOTE: Please read carefully and thoroughly all of the CAUTIONS on the inside back cover.

2 © 2012, ROSS CONTROLS

®.

All Rights Reserved.

Available with port sizes 1/4,
3/8, 1/2, 3/4, 1, and 1

Durable cast-aluminum body.

Large wrench flats around
each port.

B

A

¼

.

C

Series 19 Flow Control Valves

12

Flow Control Valves - 1/8” to 1/2” Port Sizes

Operation: To increase flow: Turn adjustment screw in.

To decrease flow: Turn adjustment screw out.

Typical Performance Curve

44
42
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10

8
6
4
2
0

11.5 22.5 33.5 44.5 55.5 66.5 77.5 7.5

1/2" 3/8" 1/4"

1/4" 1/8"

C

Port Valve Model Avg. CV Dimensions inches (mm) Weight
Size Number (Fully open) A B C lb (kg)

1/8 1968F1004 0.5 1.6 (41) 0.6 (16) 1.6 (41) 0.11 (0.05)
1/4 OT 1968F2004 0.5

1.6 (41)

1/4 1968F2007 2.3 2.6 (67) 1.2 (30) 2.75 (70) 0.43 (0.19)

3/8 1968F3007 2.3
1/2 1968F4007 2.3 2.6 (67) 1.2 (30) 2.75 (70) 0.38 (0.17)

2.6 (67)

B

A

0.8 (20)

1.2 (30)

Free flow of air in one direction with adjustable precision controlled flow in the reverse direction.

STANDARD SPECIFICATIONS (for products above):

Ambient/Media Temperature:

41° to 140°F (5° to 60°C).

Flow Media: Filtered air; 5 micron recommended.

Pressure Range :

Supply Pressure: 217 psi (14.9 bar).
Maximum Operating Pressure: 150 psi (10.3 bar).

Port Threads: NPT, BSPP. For BSPP threads add a “D”
prefix to the model number e.g., D1968F1004.

IMPORTANT NOTE: Please read carefully and thoroughly all of the CAUTIONS on the inside back cover.

2.1 (54) 0.13 (0.06)

2.75 (70)

0.41 (0.18)

Flow Control Valves - 1/4” to 2½” Port Sizes

Free flow of air in one direction with adjustable precision controlled flow in the reverse direction.
Flow control valves are used to control air flow from air cylinders, thereby controlling the

speeds at which the pistons in the cylinders move. They allow free flow in one direction and
adjustable, precision controlled flow in the other direction. Adjustment in the X-type models
is by means of a screwdriver slot, and in the Y and Z-type models by a knurled knob.

12

B

A

STANDARD SPECIFICATIONS(for products above):
Ambient/Media Temperature: 40° to 175°F (4° to 80°C).
Flow Media: Filtered air; 5 micron recommended.

IMPORTANT NOTE: Please read carefully and thoroughly all of the CAUTIONS on the inside back cover.

Valve Port Valve Model Avg. CV Dimensions inches (mm) Weight
Type Size Number (Fully open) A B C lb (kg)

1/4 1968B2007 2.3 3.5 (89) 1.3 (33) 4.3 (108) 0.5 (0.2)
Y 3/8 1968B3007 2.6 3.5 (89) 1.3 (33) 4.3 (108) 0.5 (0.2)
1/2 1968B4017 2.6 3.5 (89) 1.3 (33) 4.3 (108) 0.5 (0.2)
1/2 1968B4007 7.5 4.8 (121) 1.8 (45) 5.6 (142) 0.8 (0.4)
Y 3/4 1968B5007 8.3 4.8 (121) 1.8 (45) 5.6 (142) 0.8 (0.4)
1 1968B6017 8.3 4.8 (121) 1.8 (45) 5.6 (142) 0.8 (0.4)
1 1968B6007 17 5.4 (130) 2.3 (57) 7.1 (181) 2.2 (1.0)
Y 1¼ 1968B7007 22 5.4 (130) 2.3 (57) 7.1 (181) 2.2 (1.0)

C

1½ 1968B8017 22 5.4 (130) 2.3 (57) 7.1 (181) 2.2 (1.0)
1½ 1968B8007 50 7.5 (191) 3.5 (90) 9.5 (241) 4.3 (1.9)
Y 2 1968B9007 50 7.5 (191) 3.5 (90) 9.5 (241) 4.3 (1.9)
2½ 1968B9017 50 7.5 (191) 3.5 (90) 9.5 (241) 4.3 (1.9)

Pressure Range: 5 to 150 psig (0.3 to 10 bar).
Port Threads: NPT standard, BSPP. For BSPP threads add a “D”

prefix to the model number, e.g. D1968B2007.

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