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Series LF, LX Solenoid Pilot Controlled Valves

Single Solenoid Pilot Controlled, Spring Assisted Air Return

2/2 Valves

Normally Open (NO)

Normally Closed (NC)

Port Sizes Valve Model Number* Avg.

Dimensions inches (mm) Weight

1 2 NC NO C

Length Width Height NC Height NO lb (kg)

3/8 3/8 LF13NA37101W LF23NA37101W 3.6 3.12 (79.4) 1.88 (47.7) 4.81 (122.2) 5.45 (138.4) 1.5 (0.7)

1/2 1/2 LF14NA47101W LF24NA47101W 3.6 3.12 (79.4) 1.88 (47.7) 4.81 (122.2)

5.45 (138.4)

1.5 (0.7)

3/4 3/4 LF15NA57101W LF25NA57101W 12.2 4.12 (104.7) 2.50 (63.5) 6.96 (176.8) 7.30 (185.4) 3.5 (1.6)

1 1 LF16NA67101W LF26NA67101W 12.2 4.12 (104.7) 2.50 (63.5) 6.96 (176.8) 7.30 (185.4) 3.5 (1.6)

1¼ 1¼ LF17NA77101W LF27NA77101W 36.1 9.12 (231.7) 3.75 (95.3) 5.50 (139.7) 9.46 (240.3) 9.3 (4.2)

1½ 1½ LF18NA87101W LF28NA87101W 36.1 9.12 (231.7) 3.75 (95.3) 5.50 (139.7) 9.46 (240.3) 9.3 (4.2)

2 2 LF19NA97101W LF29NA97101W 64.7 10.72 (272.2) 5.00 (127.0) 7.50 (190.5) 10.99 (279.1) 19.3 (8.8)

2½ 2½ LF10NA07101W LF20NA07101W 64.7 10.72 (272.2) 5.00 (127.0) 7.50 (190.5) 10.99 (279.1) 19.3 (8.8)

STANDARD SPECIFICATIONS:

For Series LF, LX Solenoid Pilot Controlled Valves.

Pilot Solenoid: AC or DC power. Rated for continuous duty. Voltage

and hertz ratings shown on pilot housing.

Standard Voltages: 24 volts DC; 120 volts AC 50/60 Hz.

Power Consumption:

Port size 3/8” and 1/2” inlet: 9.8 VA on AC; 7.5 watts on DC.

Port size 3/4 thru 2

” inlet: 36 VA inrush, 23 VA holding on AC;

15 watts on DC.

Ambient Temperature: 40° to 120°F (4° to 50°C).

Media Temperature: 40° to 175°F (4° to 80°C).

Flow Media: Filtered air; 5 micron recommended.

Inlet Pressure: Vacuum to 145 psig (10 bar), (vacuum service

requires external pilot supply).

Pilot Pressure: 30 to 145 psig (2 to 10 bar). Must be equal to or

greater than inlet pressure. For vacuum service models requiring

external pilot supply, a pilot pressure of at least 30 psig (2 bar) is

required.

Port Threads: NPT, BSPP.

Note: For ﬂuid applications, consult ROSS.

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

* For models with external pilot supply, replace shaded “1” in the model number with a “5”, e.g., LF13NA37501Z.

For BSPP threads, replace “N” in the model number with a “D”, e.g., LF13DA37101W.

For 120 volts AC, 50/60 Hz, replace sufﬁx “W” with “Z”, e.g., LF13NA37101Z.

Electrical connectors not included, see below for accessories.

Part Numbers of Electrical Connectors

Valve Port Lighted Connector Only Lighted Connector Pre-wired*

Size 24 volts DC 110 Volts AC 24 volts DC 110 Volts AC

NC 3/8, 1/2 267K77W 267K77Z 382K77W 382K77Z

NO 3/8 - 1 267K77W 267K77Z 382K77W 382K77Z

NC 3/4 - 2½ 936K87W 936K87Z 720K77W 720K77Z

NO 1¼ - 2½ 936K87W 936K87Z 720K77W 720K77Z

*Pre-wired connectors are lighted and include a 2 meter (6½ ft.) cord.

ELECTRICAL CONNECTORS: For Series LF, LX Solenoid Pilot Controlled Valves.

1 2

2/2 Valves 1
www.rosscontrols.com 19 2

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Pagina 1 - 2/2 Valves

Pagina 2 - www.rosscontrols.com 19

www.rosscontrols.com 19Port Sizes: 3/8 & 1/2Port Sizes: 3/4 & 1Port Sizes: 1¼ & 1½Port Sizes: 2 & 2½Series LF, LX Solenoid Pilot Co

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