Ross Controls CATEGORY 2 User Manual

Sensing valves series sv27 series sv27, Pressure controlled air dump / release, 2/2 valves

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IMPORTANT NOTE:

Please read carefully and thoroughly all of the

CAUTIONS, WARNINGS

on the inside back cover.

Port PV

(pressure
verification)

B

1/4 Signal Port

1/4 Signal Port

2X O 0.34 (8.0)

Port 1(inlet)

[Port 2 (

outlet)

on

opposite site)

]

Port 3

(exhaust)

5-pin M12

connector

A

C

Port PV

(pressure
verification)

1/4 Signal Port

1/4 Signal Port

2X O 0.34 (8.0)

5-pin M12

connector

Port 1(inlet)

[Port 2 (outlet)

on opposite site]

2/2 Valves

PV

2

1

12

PV

2

12

3 1

Port

Valve Model

Avg. C

V

Dimensions inches (mm) Weight

Size Number

*

1 - 2

A

B

C

lb (kg)

1/2 SV27NC105405ASAA 7.7 5.7 (145) 6.1 (155) 3.1 (79) 3.4 (1.6)
3/4 SV27NC105505ASAA 9.0 5.7 (145) 6.1 (155) 3.1 (79) 3.4 (1.6)
1

SV27NC105605ASAA 9.0 5.7 (145) 6.1 (155) 3.1 (79) 3.4 (1.6)

1

SV27NC107605ASAA 24 6.8 (173) 8.7 (220) 4.1 (105) 6.7 (3.0)

1

¼ SV27NC107705ASAA 29 6.8 (173) 8.7 (220) 4.1 (105) 6.7 (3.0)

1

½ SV27NC107805ASAA 29 6.8 (173) 8.7 (220) 4.1 (105) 6.7 (3.0)

3/2 Valves

Port Size Valve Model Avg. C

V

Dimensions inches (mm) Weight

1, 2 3

Number

*

1 - 2 2-3

A

B

C

lb (kg)

1/2 1

SV27NC305405ASAA 6.3 9.2 5.7 (145) 6.4 (163)

3.6 (91)

3.3 (1.5)

3/4 1

SV27NC305505ASAA 7.7 11

5.7 (145) 6.4 (163)

3.6 (91)

3.3 (1.5)

1

1

SV27NC305605ASAA 8.0 12

5.7 (145) 6.4 (163)

3.6 (91)

3.3 (1.5)

1 1

½ SV27NC307605ASAA 23 34 6.8 (173) 8.8 (222) 4.9 (123) 6.4 (2.9)

1

¼ 1½ SV27NC307705ASAA 30 32 6.8 (173) 8.8 (222) 4.9 (123) 6.4 (2.9)

1

½ 1½ SV27NC307805ASAA 30 31 6.8 (173) 8.8 (222) 4.9 (123) 6.4 (2.9)

1

½ 2½ SV27NC309805ASAA 68 70 8.7 (219) 11.8 (300) 6.4 (161) 17.2 (7.8)

2 2

½ SV27NC309905ASAA 70 70 8.7 (219) 11.8 (300) 6.4 (161) 17.2 (7.8)

2

½ 2½ SV27NC309955ASAA 70 71 8.7 (219) 11.8 (300) 6.4 (161) 17.2 (7.8)

STANDARD SPECIFICATIONS (for valves on this page):
Ambient Temperature:
40° to 120°F (4° to 50°C).
Media Temperature: 40° to 175°F (4° to 80°C).
Flow Media: Filtered air.
Inlet Pressure: 40 to 150 psig (2.8 to 10 bar).
Pilot Pressure: Must be equal to or greater than inlet pressure.
Switch Current/Voltage Max.: 2.5 A/120 volts AC.
Switch Current/Voltage Min.: 50 mA/24 volts DC.
Port Threads: NPT, BSPP.

NOTE:

Electrical life of switch varies with conditions and voltage;

rated in excess of 15 million cycles.

Functional Safety Data: Category 2 PL d; B10d:
Valve - 20,000,000, Switch – 2,000,000; PFH: 2.35x10

-7

; MTTFd:

98.15 (n

op

: 7360); DC (obtained by monitoring safety switch

status): 3/2 valves - 99%, 2/2 and PO Check valves - 90%; Ross
recommends testing the switch function and sealing for load holding
valves every 8 hours.
Vibration/Impact Resistance: Calculated to BS EN 60068-2-27.

Pre-engineered panel-mounted design with air entry via filter and regulator
“FR”, or filter, regulator, and lubricator “FRL”

Includes 3/2 Normally Closed Sensing Valve

Applications include Air Dump and Trapped-Pressure Release

Air Entry Packages with 3/2 Normally Closed Sensing Valve

Model Air

Entry

Port Size Avg. C

V

Dimensions (inches/mm)

Number

*

Type 1-2 3 1-2

2-3

Length Width

Depth

Category 2 with Modular L-O-X

®

and SV27 Sensing Valve

RC208-09

**

FR

1/2 1/2

6.3 9.2

14.8 (375) 11.0 (279) 6.6 (168)

RC208L-09

**

FRL

1/2 1/2

6.3 9.2

14.8 (375) 11.0 (279) 6.6 (168)

Category 2 with Manual L-O-X

®

and SV27 Sensing Valve

RC208-06

**

FR

1/2 1/2

6.3 9.2

23.0 (585) 12.8 (326) 6.7 (171)

RC212-06

**

FR

3/4 3/4

7.7 11

23.0 (585) 12.8 (326) 6.7 (171)

RC216-06

**

FR

1

1

8.0 12

28.0 (712) 17.0 (432) 9.5 (242)

RC208L-06

**

FRL

1/2 1/2

6.3 9.2

23.0 (585) 12.8 (326) 6.7 (171)

RC212L-06

**

FRL

3/4 3/4

7.7 11

23.0 (585) 12.8 (326) 6.7 (171)

RC216L-06

**

FRL

1

1

8.0 12

31.8 (808) 17.0 (432) 9.5 (242)

*

NPT pressure port threads. M12 connectors available, consult ROSS.

The standard Air Entry Packages are supplied with metal bowl and auto drain.

*

NPT port threads. For BSPP threads, replace “N” in the model number with a “D”, e.g.,

SV27DC105405ASAA, SV27DC305405ASAA.

Note:

Specify voltage when ordering. **

Insert voltage code: “W” = 24 volts DC; “Z” = 110-120 volts AC, 50/60 Hz; e.g., RC404-09W, RC208-09Z.

Sensing Valves Series SV27
Series SV27

Pressure Controlled

Air Dump / Release

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