2-Way Normally Closed Valve
General purpose or safety 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 are 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 applications.
- Increased capability 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 | N.C. | N.C. | GROMMET 1/8" NPT | CONDUIT 1/8" NPT |
| 600* | 200 | 600* | 200 | 1/32 | .022 | LW52G8DGM | LW52G8DCM |
| 250 | 80 | 250 | 80 | 3/64 | .055 | LW52H8DGM | LW52H8DCM |
| 150 | 50 | 150 | 50 | 1/16 | .075 | LW52J8DGM | LW52J8DCM |
| 100 | 25 | 100 | 25 | 5/64 | .134 | LW52V8DGM | LW52V8DCM |
| 85 | 20 | 85 | 20 | 3/32 | .156 | LW52K8DGM | LW52K8DCM |
| 50 | 50 | 1/8 | .230 | LW52N8DGM | LW52N8DCM | ||
| 15 | 15 | 5/32 | .292 | LW52O8DGM | LW52O8DCM | ||
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
- 5,000 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.)
- Housing
- Grommet and 1/2" NPT conduit - many options available.*
- 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 50 LW Low Watt Valves Conduit Connection
Series 50 LW Low Watt Valves Conduit/Bracket Connection
Series 50 LW Low Watt Valves Grommet Leads
Series 50 LW Low Watt Valves Grommet/Bracket Leads
Series 50 LW Low Watt Valves Yoke Leads
Series 50 LW Low Watt Valves Yoke Spade Terminals
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.