2-Way Normally Open Valve
General purpose valves for pneumatic and hydraulic applications. The versatility of these valves is increased to include the handling of hot air, hot water, refrigerants and many other media, by the use of different seals. Air and other fluids compatible with standard Buna seals. Hot water, steam, gasoline, oils, some hydraulic fluids, and many media require special seal materials.
- General purpose valve with reduced power consumption.
- Increased versatility.
- For pneumatic and hydraulic application.
- Increased to handle hot air, water and refrigerants.
- High quality engineering.
| MAX. OPER. PRESS. DIFF. | ORIFICE SIZE | CV FACTOR | VALVE NUMBER | ||||
|---|---|---|---|---|---|---|---|
| GAS | LIQUID | ||||||
| AC | DC | AC | DC | GROMMET 1/8" NPT | CONDUIT 1/8" NPT | ||
| 300 | 200 | 300 | 200 | 1/32 | .020 | LW51G8XGM | LW51G8XCM |
| 270 | 120 | 120 | 65 | 3/64 | .048 | LW51H8XGM | LW51H8XCM |
| 135 | 50 | 40 | 30 | 1/16 | .075 | LW51J8XGM | LW51J8XCM |
| 70 | 35 | 30 | 20 | 5/64 | .134 | LW51V8XGM | LW51V8XCM |
| 55 | 30 | 25 | 15 | 3/32 | .156 | LW51K8XGM | LW51K8XCM |
Ordering Information:
When ordering valves or repair packs add voltage and frequency to complete valve number. for examples: valve (LW51J8XGML 120/60) repair pack (KLW51JX AC)
When ordering operators add the letter “O” to the front of the valve number, replace body port number with the letter “D”: example: operator (OLW51JDDGML 120/60)
Operating Conditions
- Media
- Air and other fluids compatible with standard Buna seals. Hot water, steam, gasoline, oils, some hydraulic fluids, and many media require special seal materials. (Series 50 pressure ratings may change due to the viscosity of the liquid.)*
- Valve Temperature Range
- Standard Valves – 0°F (-18°C) to 104°F (40°C) ambient; 0°F (-18°C) to 150°F (65°C) media. Optional Valves – can tolerate much higher or much lower ambient and media temperatures.*
- Maximum Operating Pressure Differentials
- See table above.
- Burst Pressure
- 5000 PSI
- Leakage
- Bubble tight for standard valves.
- Vacuum
- To 5 Microns*
Electrical Characteristics
- Coil Voltage
- 12/DC, 24/DC, 48/DC, 125/DC, 120/60-110/50, 240/60, and 24/60.
- Nominal Power
- AC — 2.5 Watts DC — 2.5 Watts
- Coil Construction
- Non-molded Class A, Molded and potted Class F. (Class H optional)
- Typical Response Time on Air
- 4 - 16 Milliseconds
- Operating Speed
- Up to 600 CPM
- Duty Cycle
- Continuous
Mechanical Characteristics
- Body
- Stainless Steel (Std.), Brass (Opt.) or Aluminum (Opt.)
- Internal Components
- Stainless Steel. Copper – AC Only.
- Elastomers
- Nitrile (Buna) (Std.). Many other elastomers available.*
- Orifice Diameter
- See table above.
- Porting
- 1/8" NPT (Std.)
- Life Expectancy
- Millions of cycles, depending on application, lubrication, etc.
- Valve Weight
- Grommet Valve: 0.38 lbs, Conduit Valve: 0.44 lbs
- Repair Packs
- See table above.
- Options
- Alternate Port Locations, Metering and Alternate Elastomers*
Series 50LW Model LW51 Conduit Connection
Series 50LW Model LW51 Grommet Connection
Series 50LW Model LW51 Yoke Leads
Series 50LW Model LW51 Yoke Spades
Cv Flow Formulae
PeterPaul has created this page for you so you can calculate the flow or Cv (flow coefficient) to make the relationship visible between the pressure drop (the difference in pressure between two points of a liquid/gas carrying network) and the flow rate.
The use of this flow coefficient (Cv) calculator offers a standard calculation to compare valve capacities and sizing for a wide range of applications. The type and sizing of a valve or regulator can have a large impact on the performance of the assembly for transferring gas or liquids in the system.
Our sales department is ready to answer questions and to solve your valve needs. Please feel free to call, chat or email us.
Liquid Flow
Gas Flow P2 > 53% of P1 (subsonic)
Gas Flow P2 < 53% of P1 (sonic)
DISCLAIMER: Gas flow is only an approximation using Cv.