3-Way Normally Closed Valve (Piped Exhaust)
General purpose valve for pneumatic applications. The versatility of these valves is increased to include the handling of hot air, refrigerants, and many other media by the use of different seals. Air and other gases are compatible with standard Buna seals.
- General purpose valve with reduced power consumption.
- Increased versatility.
- For pneumatic applications.
- Increased capability to handle hot air and other gases.
- High quality engineering.
| MAX. OPER. PRESS. DIFF. | ORIFICE SIZE | CV FACTOR | VALVE NUMBER | |||
|---|---|---|---|---|---|---|
| GAS | ||||||
| DC | N.C. | N.O. | N.C. | N.O. | GROMMET 1/8" NPT | CONDUIT 1/8" NPT |
| 120 | 1/32 | 1/32 | .022 | .022 | LLW53G8XGM | LLW53G8XCM |
Operating Conditions
- Media
- Air and other gases only compatible with standard Buna seals.*
- 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, 24/DC
- Nominal Power
- DC — 0.65 Watts
- Coil Construction
- Non-molded Class A, Molded and potted Class F. (Class H option)
- 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
- 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*
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Series 50LLW 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
Calculate Flow in GPM
PSI
GPM
Calculate Cv
GPM
PSI
Calculate P1−P2
GPM
PSI
Gas Flow P2 > 53% of P1 (subsonic)
Calculate Flow in CFM
PSIA
PSIA
°R
CFM
Calculate Cv
CFM
PSIA
PSIA
°R
Calculate P1 (approx.)
CFM
PSIA
°R
PSIA
Calculate P2 (approx.)
CFM
PSIA
°R
PSIA
Gas Flow P2 < 53% of P1 (sonic)
Calculate Flow in CFM
PSIA
°R
CFM
Calculate Cv
CFM
PSIA
°R
Calculate P1
CFM
°R
PSIA
DISCLAIMER: Gas flow is only an approximation using Cv.