Manufacturer : Ross Asia
Model : No.W70
ANSI Valves W70 Series Product Overview
The ROSS ® ANSI valves W70 Series are base mounted spool and sleeve valves that conform to the American National Standards Institute (ANSI) standards for valve-to-base interface configurations, including plug-and-socket electrical connections between valve and base.
These ANSI Size 1, 2.5, 4, 10, and 20 valves are available as, 2- and 3-position, 5-ported 4-way solenoid pilot or pressure controlled valves with either internal or external pilot supply. The spool and sleeve design means there are no seals to wear out.
| Solenoid Pilot Controlled |
Direct Solenoid Controlled |
Pressure Controlled |
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 |
 |
Features
| Spool Design |
Spool and Sleeve construction for high dirt tolerance |
| Mounting Options |
Individual sub-base or manifold base mounting |
| Pilot Supply |
Internal or external; suitable for vacuum service (with external pilot supply) |
| Pilot Operation |
Provides high shifting force with low power consumption |
Specifications
| GENERAL |
| Function |
5/2 and 5/3 Valve |
| Construction Design |
Spool and Sleeve |
| Actuation |
Electrical – Solenoid Pilot Controlled
Pneumatic – Pressure Controlled |
| Mounting |
Sub-Base or Manifold |
| Connection |
Threaded; NPT, G |
| Manual Override |
Flush; rubber, non-locking |
| OPERATING CODITIONS |
Temperature |
Solenoid Pilot Controlled |
Ambient |
40 ֯to 120°F (4° to 50°C) |
| Media |
40° to 175°F (4° to 80°C) |
| Pressure Controlled |
Ambient |
40° to 175°F (4° to 80°C) |
| Media |
| Flow Media |
Filtered air |
| Operating Pressure |
Vacuum to 150 psig (Vacuum to 10 bar) |
| Pilot Supply Pressure |
ANSI Size |
1 & 20 |
Minimum 30 psig (2 bar) |
| 2.5, 4, 10 |
Minimum 15 psig (1 bar) |
| External Pilot Supply |
Must be equal to or greater than inlet pressure |
| ELECTRICAL DATA FOR SOLENOID PILOT CONTROLLED VALVES |
Solenoids |
Control |
ANSI Size |
Current |
Operating Voltage |
Power Consumption (each solenoid) |
| Solenoid Pilot |
1 |
DC |
24 volts |
5 watts |
| AC |
100-110 volts. 50 Hz 100-130 volts. 60 Hz 230-240 volts. 60 Hz |
10 VA inrush. 24 VA holding |
| 2.5, 4, 10, 20 |
DC |
24 volts DC |
14 watts |
| AC |
100-110 volts. 50 Hz 100-130 volts. 60 Hz 230-240 volts. 60 Hz |
87 VA inrush. 55 VA holding |
| Direct Solenoid |
1 |
DC |
24 volts |
20 watts |
| AC |
110-120 volts. 50/60 Hz 230-240 volts. 60 Hz |
140 VA inrush, 30 VA holding |
| 2.5 & 4 |
DC |
24 volts |
20 watts |
| AC |
110-120 volts. 50/60 Hz 230-240 volts. 60 Hz |
380 VA inrush, 79 VA holding |
| Rated for continuous duty |
| ANSI Size 4, 10, & 20 |
Indicator Light – One per solenoid |
| Construction Material |
Component |
Material |
| Construction Material |
Valve Body |
Cast Aluminum |
| Spool |
Stainless Steel |
| Seals |
Buna-N |
PRODUCT CREDENTIALS
| Certificate of Compliance |
Declaration of Conformity |
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Ordering Information
5/2 Single Solenoid Pilot Controlled Valves
| ANSI |
Port |
Valve Model Number |
| 24 V DC |
110-120 V AC |
230 V AC |
| 1 |
1/4 – 3/8 |
W7076B2331W |
W7076B2331Z |
W7076B2331Y |
| 2.5 |
3/8 – 1/2 |
W7076A3331W |
W7076A3331Z |
W7076A3331Y |
| 4 |
3/8 – 3/4 |
W7076D4331W |
W7076D4331Z |
W7076D4331Y |
| 10 |
3/4 – 1-1/4 |
W7076C6331W |
W7076C6331Z |
W7076C6331Y |
| 20 |
1-1/4 – 1-1/2 |
W7076C8331W |
W7076C8331Z |
W7076C8331Y |
| Size |
Flow Cv (Nl/min) |
Average Response Constants’ |
Weight lb (kg) |
| Body |
Port 1 |
1-2 |
M |
F |
| 1-2 |
2-3 |
| 1 |
1/4-3/8 |
1.0 (984) |
20 |
3.6 |
4.9 |
3.0 (1.4) |
| 2.5 |
3/8 -1/2 |
2.5 (2460) |
17 |
1.6 |
2.7 |
3.0 (1.4) |
| 4 |
3/8-3/4 |
4.2 (4133) |
20 |
0.6 |
0.6 |
5.3 (2.4) |
| 10 |
3/4 —1-1/4 |
10(9840) |
30 |
0.3 |
0.3 |
7.3 (3.3) |
| 20 |
1-1/4-1-1/2 |
22 (21648) |
50 |
0.1 |
0.2 |
14.5(6.5) |
Valve Response Time – Response Time (msec) = M + (F • V). This is the average time required to fill a volume V (cubic inches) to 90% of supply pressure or to exhaust it to 10% of supply pressure. M and F values are shown above.
| Valve Schematic |
 |
Valve Technical Data
| Dimensions -Inches(mm) |
| ANSI Size 1 |
 |
| ANSI Size 2.5 |
 |
| ANSI Size 4 |
 |
| ANSI Size 10 |
 |
| ANSI Size 20 |
 |
5/2 Double Solenoid Pilot Controlled Valves
| ANSI |
Port |
Valve Model Number |
| 24 V DC |
110-120 V AC |
230 V AC |
| 1 |
1/4 – 3/8 |
W7076B2332W |
W7076B2332Z |
W7076B2332Y |
| 2.5 |
3/8 – 1/2 |
W7076A3332W |
W7076A3332Z |
W7076A3332Y |
| 4 |
3/8 – 3/4 |
W7076D4332W |
W7076D4332Z |
W7076D4332Y |
| 10 |
3/4 – 1-1/4 |
W7076C6332W |
W7076C6332Z |
W7076C6332Y |
| 20 |
1-1/4 – 1-1/2 |
W7076C8332W |
W7076C8332Z |
W7076C8332Y |
| Size |
Flow Cv (Nl/mm) |
Average Response Constants |
Weight lb (kg) |
| Body |
Por11 |
1-2 |
M |
F |
| 1-2 |
2-3 |
| 1 |
1/4 – 3/8 |
0.9 (886) |
20 |
3.6 |
4.9 |
4.0 (1.8) |
| 2.5 |
3/8 -1/2 |
2.0(1968) |
17 |
1.6 |
2.7 |
4.0 (1.8) |
| 4 |
3/8 – 3/4 |
4.2 (4133) |
20 |
0.6 |
0.6 |
6.5 (2.9) |
| 10 |
3/4 -1-1/4 |
11 (10824) |
30 |
0.3 |
0.3 |
9.0 (4.1) |
| 20 |
1-1/4 -1-1/2 |
22 (21648) |
50 |
0.1 |
0.2 |
15.8 (6.8) |
Valve Response Time = Response Time (msec) – M + (F • V). This is the average time required to fill a volume V (cubic inches) to 90% of supply pressure or to exhaust it to 10% of supply pressure. M and F values are shown above.
| Valve Schematic |
|
| Dimensions -Inches(mm) |
| ANSI Size 1 |
 |
| ANSI Size 2.5 |
 |
| ANSI Size 4 |
 |
| ANSI Size 10 |
 |
| ANSI Size 20 |
 |
5/3 Double Solenoid Pilot Controlled Valves
| Center Position |
ANSI |
Port |
Valve Model Number |
| 24 V DC |
110-120 V AC |
230 V AC |
| Power Center |
1 |
1/4 – 3/8 |
W7077B2906W |
W7077B2906Z |
W7077B2906Y |
| 2.5 |
3/8 – 1/2 |
W7077A3904W |
W7077A3904Z |
W7077A3904Y |
| 4 |
3/8 – 3/4 |
W7077C4939W |
W7077C4939Z |
W7077C4939Y |
| 10 |
3/4 – 1-1/4 |
W7077A6920W |
W7077A6920Z |
W7077A6920Y |
| 20 |
1-1/4 – 1-1/2 |
W7077A8901W |
W7077A8901Z |
W7077A8901Y |
| Closed Center |
1 |
1/4 – 3/8 |
W7076B2331W |
W7076B2331Z |
W7076B2331Y |
| 2.5 |
3/8 – 1/2 |
W7076A3331W |
W7076A3331Z |
W7076A3331Y |
| 4 |
3/8 – 3/4 |
W7076D4331W |
W7076D4331Z |
W7076D4331Y |
| 10 |
3/4 – 1-1/4 |
W7076C6331W |
W7076C6331Z |
W7076C6331Y |
| 20 |
1-1/4 – 1-1/2 |
W7076C8331W |
W7076C8331Z |
W7076C8331Y |
| Open Center |
1 |
1/4 – 3/8 |
W7076B2332W |
W7076B2332Z |
W7076B2332Y |
| 2.5 |
3/8 – 1/2 |
W7076A3332W |
W7076A3332Z |
W7076A3332Y |
| 4 |
3/8 – 3/4 |
W7076D4332W |
W7076D4332Z |
W7076D4332Y |
| 10 |
3/4 – 1-1/4 |
W7076C6332W |
W7076C6332Z |
W7076C6332Y |
| 20 |
1-1/4 – 1-1/2 |
W7076C8332W |
W7076C8332Z |
W7076C8332Y |
| Size |
Flow Cv (Nl/min) |
Average Response Constants |
Weight lb (kg) |
| Body |
Port 1 |
1-2 |
M |
F |
| 1-2 |
2-3 |
| 1 |
1/4-3/8 |
1.0 (984) |
20 |
3.6 |
4.9 |
4.0 (1.8) |
| 2.5 |
3/8-1/2 |
2.5 (2460) |
17 |
1.6 |
2.7 |
4.0 (1.8) |
| 4 |
3/8-3/4 |
4.2 (4133) |
20 |
0.6 |
0.6 |
6.5 (2.9) |
| 10 |
3/4-1-1/4 |
10(9840) |
30 |
0.3 |
0.3 |
8.5 (3.8) |
| 20 |
1-1/4-1-1/2 |
22 (21648) |
50 |
0.1 |
0.2 |
15.3 (6.9) |
Valve Response Time – Response Time (msec) = M + (F • V). This is the average time required to fill a volume V (cubic inches) to 90% of supply pressure or to exhaust it to 10% of supply pressure. M and F values are shown above.
| Valve Schematics |
| Power Center |
Closed Center |
Open Center |
 |
 |
 |
| Dimensions -Inches(mm) |
| ANSI Size 1 |
 |
| ANSI Size 2.5 |
 |
| ANSI Size 4 |
 |
| ANSI Size 10 |
 |
| ANSI Size 20 |
 |
5/2 Direct Single Solenoid Pilot Controlled Valves
| Size |
Valve Model Number |
| ANSI |
Port |
Voltage |
| 24 V DC |
110-120 VAC |
230 V AC |
| 1 |
1/4 – 3/8 |
W7016B2331W |
W701682331Z |
W7016B2331Y |
| 2.5 |
3/8- 1/2 |
— |
W7016A3331Z |
W7016A3331Y |
| 4 |
3/8 — 3/4 |
— |
W7016C4331Z |
W7016C4331Y |
| Size |
Flow a (Nl/min) |
Average Response Constants* |
Weight lb (kg) |
| Body |
Port 1 |
1-2 |
M |
F |
| 1-2 |
2-3 |
| 1 |
1/4 – 3/8 |
1.0 (984) |
20 |
3.6 |
4.9 |
35(1.6) |
| 2.5 |
3/8-1/2 |
2.5 (2460) |
17 |
1.6 |
27 |
3.3(15) |
| 4 |
3/8 – 3/4 |
4.2 (4133) |
20 |
0.6 |
0.6 |
43(1.9) |
Valve Response Time – Response Time (msec) = M + (F • V). This is the average time required to fill a volume V (cubic inches) to 90% of supply pressure or to exhaust it to 10% of supply pressure. M and F values are shown above.
| Valve Schematic |
 |
| Dimensions -Inches(mm) |
| ANSI Size 1 |
 |
| ANSI Size 2.5 |
 |
| ANSI Size 4 |
 |
5/2 Direct Double Solenoid Pilot Controlled Valves
| Size |
Valve Model Number |
| ANSI |
Port |
Voltage |
| 24 V DC |
110-120 VAC |
230 VAC |
| 1 |
1/4 – 3/8 |
W7016B2332W |
W7016B2332Z |
W7016B2332Y |
| 2.5 |
3/8-1/2 |
— |
W7016A3332Z |
W7016A3332Y |
| 4 |
3/8 – 3/4 |
— |
W7016C4332Z |
W7016C4332Y |
| Size |
Flow Cv (Nl/min) |
Average Response Constants* |
Weight lb (kg) |
| Body |
Port 1 |
1-2 |
M |
F |
| 1-2 |
2-3 |
| 1 |
1/4-3/8 |
1.0 (984) |
20 |
3.6 |
4.9 |
3.5 (1.6) |
| 2.5 |
3/8-1/2 |
2.5 (2460) |
17 |
1.6 |
2.7 |
3.3 (1.5) |
| 4 |
3/8-3/4 |
4.2 (4133) |
20 |
0.6 |
0.6 |
4.3 (1.9) |
Valve Response Time – Response Time (msec) = M + (F • V). This is the average time required to fill a volume V (cubic inches) to 90% of supply pressure or to exhaust it to 10% of supply pressure. M and F values are shown above.
| Valve Schematic |
 |
| Dimensions -Inches(mm) |
| ANSI Size 1 |
 |
| ANSI Size 2.5 |
 |
| ANSI Size 4 |
 |
5/3 Direct Double Solenoid Pilot Controlled Valves
| Center Position |
Size |
Valve Model Number |
| ANSI |
Port |
24 V DC |
110-120 V AC |
230 V AC |
| Power Center |
1 |
1/8 – 3/8 |
W7017B2905W |
W7017B2905Z |
W7017B2905Y |
| 1 |
1/8 – 3/8 |
W7017B2331W |
W7017B2331Z |
W7017B2331Y |
| Closed Center |
2.5 |
3/8 – 1/2 |
W7017A3331W |
W7017A3331Z |
W7017A3331Y |
| 4 |
1/2 – 3/4 |
W7017C4331W |
W7017C4331Z |
W7017C4331Y |
| Open Center |
1 |
1/8 – 3/8 |
W7017B2332W |
W7017B2332Z |
W7017B2332Y |
| 2.5 |
3/8 – 1/2 |
W7017A3332W |
W7017A3332Z |
W7017A3332Y |
| 4 |
1/2 – 3/4 |
W7017C4332W |
W7017C4332Z |
W7017C4332Y |
| Size |
Flow Cv (Nl/min) |
Average Response Constants* |
Weight lb (kg) |
| Body |
Port 1 |
1-2 |
M |
F |
| 1-2 |
2-3 |
| 1 |
1/4-3/8 |
1.0 (984) |
20 |
3.5 |
4.9 |
4.5 (2.0) |
| 2.5 |
3/8-1/2 |
1.9 (1870) |
10 |
1.3 |
1.8 |
5.0 (2.3) |
| 4 |
1/2-3/4 |
3.8 (3739) |
— |
— |
— |
5.8 (2.6) |
Valve Response Time – Response Time (msec) = M + (F • V). This is the average time required to fill a volume V (cubic inches) to 90% of supply pressure or to exhaust it to 10% of supply pressure. M and F values are shown above.
| Valve Schematics |
| Power Center |
Closed Center |
Open Center |
 |
 |
 |
| Dimensions -Inches(mm) |
| ANSI Size 1 |
 |
| ANSI Size 2.5 |
 |
| ANSI Size 4 |
 |
5/2 Single Pressure Controlled Valves
| Size |
Valve Model Number |
| ANSI |
Port |
| 1 |
1/4 – 3/8 |
W7056B2331 |
| 2.5 |
3/8 – 1/2 |
W7056A3331 |
| 4 |
3/8 – 3/4 |
W7056B4331 |
| 10 |
3/4 – 1-1/4 |
W7056A6331 |
| 20 |
1-1/4 – 1-1/2 |
W7056A8331 |
* Sub-bases and manifold bases ordered separately. Please see Sub-Bases and Manifolds section.
| Size |
Flow Cv (Nl/min) |
Average Response Constants* |
Weight lb (kg) |
| Body |
Port 1 |
1-2 |
M |
F |
| 1-2 |
2-3 |
| 1 |
1/4-3/8 |
1.0 (984) |
20 |
3.6 |
4.9 |
25(1.1) |
| 2.5 |
3/8-1/2 |
2.5 (2460) |
17 |
1.5 |
2.6 |
2.0 (0.9) |
| 4 |
3/8-3/4 |
4.2 (4133) |
12 |
0.6 |
0.7 |
4.3 (1.9) |
| 10 |
3/4-1-1/4 |
10(9840) |
20 |
0.3 |
0.3 |
6.3 (2.8) |
| 20 |
1-1/4 —1-1/2 |
22 (21648) |
30 |
0.1 |
0.2 |
13.0(5.9) |
Valve Response Time – Response Time (msec) = M + (F • V). This is the average time required to fill a volume V (cubic inches) to 90% of supply pressure or to exhaust it to 10% of supply pressure. M and F values are shown above.
| Valve Schematic |
 |
| Dimensions -Inches(mm) |
| ANSI Size 1 |
 |
| ANSI Size 2.5 |
 |
| ANSI Size 4 |
 |
| ANSI Size 10 |
 |
| ANSI Size 20 |
 |
5/2 Double Pressure Controlled Valves
| Size |
Valve Model Number |
| ANSI |
Port |
| 1 |
1/4 – 3/8 |
W7056B2331 |
| 2.5 |
3/8 – 1/2 |
W7056A3331 |
| 4 |
3/8 – 3/4 |
W7056B4331 |
| 10 |
3/4 – 1-1/4 |
W7056A6331 |
| 20 |
1-1/4 – 1-1/2 |
W7056A8331 |
* Sub-bases and manifold bases ordered separately. Please see Sub-Bases and Manifolds section.
| Size |
Flow Cv (Nl/min) |
Average Response Constants* |
Weight lb (kg) |
| Body |
Port 1 |
1-2 |
M |
F |
| 1-2 |
2-3 |
| 1 |
1/4-3/8 |
1.0 (984) |
20 |
3.6 |
4.9 |
25(1.1) |
| 2.5 |
3/8-1/2 |
2.5 (2460) |
17 |
1.5 |
2.6 |
2.0 (0.9) |
| 4 |
3/8-3/4 |
4.2 (4133) |
12 |
0.6 |
0.7 |
4.3 (1.9) |
| 10 |
3/4-1-1/4 |
10(9840) |
20 |
0.3 |
0.3 |
6.3 (2.8) |
| 20 |
1-1/4 —1-1/2 |
22 (21648) |
30 |
0.1 |
0.2 |
13.0(5.9) |
Valve Response Time – Response Time (msec) = M + (F • V). This is the average time required to fill a volume V (cubic inches) to 90% of supply pressure or to exhaust it to 10% of supply pressure. M and F values are shown above.
| Valve Schematic |
 |
| Dimensions -Inches(mm) |
| ANSI Size 1 |
 |
| ANSI Size 2.5 |
 |
| ANSI Size 4 |
 |
| ANSI Size 10 |
 |
| ANSI Size 20 |
 |
5/3 Double Pressure Controlled Valves
| Center Position |
Size |
Valve Model Number |
|
ANSI |
Port |
24 V DC |
| Power Center |
10 |
3/4 – 1-1/4 |
W7057A6902 |
| Closed Center |
1 |
1/4 – 3/8 |
W7057B2331 |
| 2.5 |
3/8 – 1/2 |
W7057A3331 |
| 4 |
3/8 – 3/4 |
W7057B4331 |
| 10 |
3/4 – 1-1/4 |
W7057A6331 |
| 20 |
1-1/4 – 1-1/2 |
W7057A8331 |
| Open Center |
1 |
1/4 – 3/8 |
W7057B2332 |
| 2.5 |
3/8 – 1/2 |
W7057A3332 |
| 4 |
3/8 – 3/4 |
W7057B4332 |
| 10 |
3/4 – 1-1/4 |
W7057A6332 |
| 20 |
1-1/4 – 1-1/2 |
W7057A8332 |
* Sub-bases and manifold bases ordered separately. Please see Sub-Bases and Manifolds section.
| Size |
Flow Cv (Nl/min) |
Average Response Constants* |
Weight lb (kg) |
| Body |
Port 1 |
1-2 |
M |
F |
| 1-2 |
2-3 |
| 1 |
1/4 -3/8 |
1.0 (984) |
20 |
3.5 |
4.9 |
2.5 (1.1) |
| 2.5 |
3/8-1/2 |
2.5 (2460) |
17 |
1.5 |
2.6 |
2.0 (0.9) |
| 4 |
3/8-3/4 |
4.2(4133) |
12 |
0.6 |
0.7 |
4.3 (1.9) |
| 10 |
3/4-1-1/4 |
10(9840) |
20 |
0.3 |
0.3 |
6.3 (2.8) |
| 20 |
1-1/4 -1-1/2 |
22 (21648) |
30 |
0.1 |
0.2 |
13.8 (6.2) |
Valve Response Time – Response Time (msec) = M + (F • V). This is the average time required to fill a volume V (cubic inches) to 90% of supply pressure or to exhaust it to 10% of supply pressure. M and F values are shown above.
| Valve Schematics |
| Power Center |
Closed Center |
Open Center |
 |
 |
 |
| Dimensions -Inches(mm) |
| ANSI Size 1 |
 |
| ANSI Size 2.5 |
 |
| ANSI Size 4 |
 |
| ANSI Size 10 |
 |
| ANSI Size 20 |
 |
