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Parker 止回阀
Parker Check Valves
Check Valve, Lift Check - LC Series
Parker's LC-Series Lift Check Valves are a compact design and utilize a gravity assisted poppet to seal a wide variety of temperature extremes in instrumentation systems
Parker's LC-Series Lift Check Valve has been designed for a wide variety of temperature extremes from -100?F to 900?F (-148?C to 482?C). To achieve this performance, the check valve must be mounted in the proper orientation as the bonnet nut is clearly marked. In contrast to a general purpose lift check valve, the LC-Series has been designed to prevent flow in the reverse direction to within 99.9% of forward flow. This is ideal for liquid service applications. The gravity assisted poppet uses back pressure to achieve a seal.
Many industrial valves of this type require additional fittings (adapters) when connecting to tubing system. The LC Series does not require adapters and offers both single ferrule and two ferrule compression end connection integral to the valve body
Check Valve, Lift Check - LC Series 
Markets:
- Chemical
- Power
- Petrochemical
- Oil & Gas
- Research
Features/benefits:
- Wide temperature range
- Variety of end connections available
- Compact design
- Rugged, forged body construction
- 316 Stainless Steel construction
Applications:
- Back Flow Preventers
- Test Panels
- High Temperature Fill Systems
Technical Specifications
| Maximum Operating Pressure: |
6000 psi, 414 bar |
| Connection 1 Size: |
1/8" to 1/2", NPT F, Two Ferrule Compression, Single ferrule Compression |
| Connection 2 Size: |
1/8" to 1/2", NPT F, Two Ferrule Compression, Single ferrule Compression |
| Minimum Operating Temperature: |
-148 °C, -100 °F, -148 °C |
| Specifications Met: |
DNV-ISO 9001, ASME N STAMP (NCA400/NQA-1), NUPIC, RCC-M |
| Maximum Operating Temperature: |
900 °F, 482 °C |
| Connection Type: |
Two Ferrule Inverted Medium Pressure Compression Tube Fitting, NPT |
| Industry Application: |
Chemical, Petrochemical, Hydraulic Power Units, Refining, Research Laboratories |
| Maximum Tube Outside Diameter: |
12 mm, 1/2 inch |
| Body Material: |
316 Stainless Steel |
Check Valve, Lift Check - LC Series 型号
| Part |
Connection 1 Size |
Connection 2 Size |
Connection 1 Style |
Connection 2 Style |
Maximum Working Pressure (psi) |
Maximum Working Pressure (Bar) |
Maximum Working Temperature (F) |
Maximum Working Temperature (C) |
Minimum Working Temperature (F) |
Minimum Working Temperature (°C) |
Body Material |
| 2F-LC6L-SS |
1/8" |
1/8" |
NPT F |
NPT F |
6,000 |
414 |
900 |
482 |
-100 |
-148 |
316 Stainless Steel |
| 4A-LC6L-SS |
1/4" |
1/4" |
Two Ferrule Compression |
Two Ferrule Compression |
6,000 |
414 |
900 |
482 |
-100 |
-148 |
316 Stainless Steel |
| 4F-LC6L-SS |
1/4" |
1/4" |
NPT F |
NPT F |
6,000 |
414 |
900 |
482 |
-100 |
-148 |
316 Stainless Steel |
| 4Z-LC6L-SS |
1/4" |
1/4" |
Single ferrule Compression |
Single ferrule Compression |
6,000 |
414 |
900 |
482 |
-100 |
-148 |
316 Stainless Steel |
| 6A-LC12L-SS |
3/8" |
3/8" |
Two Ferrule Compression |
Two Ferrule Compression |
6,000 |
414 |
900 |
482 |
-100 |
-148 |
316 Stainless Steel |
| 6Z-LC12L-SS |
3/8" |
3/8" |
Single ferrule Compression |
Single ferrule Compression |
6,000 |
414 |
900 |
482 |
-100 |
-148 |
316 Stainless Steel |
| 8A-LC12L-SS |
1/2" |
1/2" |
Two Ferrule Compression |
Two Ferrule Compression |
6,000 |
414 |
900 |
482 |
-100 |
-148 |
316 Stainless Steel |
| 8F-LC12L-SS |
1/2" |
1/2" |
NPT F |
NPT F |
6,000 |
414 |
900 |
482 |
-100 |
-148 |
316 Stainless Steel |
| 8Z-LC12L-SS |
1/2" |
1/2" |
Single ferrule Compression |
Single ferrule Compression |
6,000 |
414 |
900 |
482 |
-100 |
-148 |
316 Stainless Steel |
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