Barksdale's Series III-L valve provides an optimal solution for the upmost reliability and safety by combining the dependable features of our heavy duty Shear-Seal? valves with the reliability of the integrated actuator, providing an all in one package saving customers time in installation and maintenance.
With the ability to handle high pressure demands between 3000 to 5000 psi while maintaining a high flow capability of 75 GPM, the Series III-L is well suited to tolerate contaminated media. The combination of the high flow and high pressure and virtually zero-leakage* makes the Series III-L valve the choice for the toughest applications where zero-leakage* is a must.
| - Main Valve |
|
| Media Type: |
Hydraulic oil only or water based with
stainless steel body |
Working Pressure:
1” Size: |
Hydraulic up to 3,000 or 5,000 psi
(206 bar or 345 bar) |
| Back Pressure: |
250 psi (17.2 bar) max at return port |
| Proof Pressure: |
1.5x working pressure except at return port |
| Burst Pressure: |
2x working pressure except at return port (3,000 psi [206 bar]) |
| Pressure Drop (all Valves): |
See supplemental guide for detailed information |
| Porting: |
1” NPT standard
Optional: SAE 16 (SAE J1926) |
| Media Temperature Range: |
-30° to +185°F (-34.4° to +85°C) |
| Handle Detent: |
All valves have 3-position detents for manual shift to center position |
| Panel Mounting: |
Standard for 1/4”- 1/2” valves Refer to sales drawings for 1” & 1-1/2” valves |
Wetted Materials:
Body:
Shaft:
Rotor & Seals:
Standard O-Rings: |
Phosphate coated carbon steel or stainless steel option
Stainless steel
400 series stainless steel
Buna N
Option: Viton?, Neoprene, EPR |
External:
Housing:
Hardware:
Handle & Detent Disc: |
Phosphate coated carbon steel
Plated carbon steel
Plated carbon steel |
| Flow Characteristics: |
Cv Factor = 9.2
Capacity : 75 GPM @ 60ft/sec |
| - Pilot Actuator |
|
Working Pressure:
Air:
Hydraulic: |
Range: 80 to 120 psi
(5.5 to 8.3 bar)
Range: 200 to 1,000 psi
(13.8 to 68.9 bar) |
| Porting: |
1/4”- 18 NPT |
| Media Temperature Range: |
-30° to +185°F (-34.4° to +85°C) |
| Speed of Operation: |
1/2 second or more for 90° throw to avoid damage (Restrict actuator flow to control speed) |
Materials:
Cylinder:
End Plate:
Hardware: |
Hard anodized aluminum
Anodized aluminum
Plated carbon steel |
| Weight (Valve & actuator): |
48 lbs (21.8 kg) : pneumatic model
49 lbs (22.2 kg) : hydraulic model |
