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CS#20-1-65 by Anchor Fluid Power | In-Line Hydraulic Check Valve, 65 PSI Cracking | 1-1/4" Female O-Ring Boss Ends | 50 GPM | 5,000 PSI | Zinc Plated Steel
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Inline Valves
Carbon Steel In-Line Check Valves
In-line hydraulic check valves in zinc chromate plated carbon steel with a hardened poppet and metal-to-metal seat, 7 PSI or 65 PSI cracking pressure. Female NPTF or SAE straight thread ports.
1
What are the key specifications?
Body
Carbon steel, zinc chromate plated
Max Pressure
5,700 PSI / 5,000 PSI / 4,500 PSI
Max Flow
4 to 110 GPM by size
Temperature
-4°F to +176°F
Cracking Pressure
7 PSI or 65 PSI
Seat
Metal to metal, hardened poppet
2
What are the main product features?
- NPTF & SAE Connections.
- Carbon Steel with Zinc Chromate Plating (RoHS Compliant).
- Available in 7 PSI & 65 PSI Spring Cracking Pressures.
- Metal to Metal Seat.
- Hardened Poppet.
- For hydraulic use only. Consult factory for fluid compatibility.
3
Which sizes are available?
| Size | 7 PSI Cracking | 65 PSI Cracking | Thread | Max Flow (GPM) | Max PSI | B (in) | C (in) |
|---|---|---|---|---|---|---|---|
| Female NPTF ports | |||||||
| 1/4" | CN1/4-1-7 | CN1/4-1-65 | 1/4 NPTF | 4 | 5,700 | 2.17 | 0.75 |
| 3/8" | CN3/8-1-7 | CN3/8-1-65 | 3/8 NPTF | 8 | 5,700 | 2.68 | 0.95 |
| 1/2" | CN1/2-1-7 | CN1/2-1-65 | 1/2 NPTF | 13 | 5,700 | 2.95 | 1.06 |
| 3/4" | CN3/4-1-7 | CN3/4-1-65 | 3/4 NPTF | 23 | 5,700 | 3.48 | 1.38 |
| 1" | CN1-1-7 | CN1-1-65 | 1 NPTF | 40 | 5,000 | 4.33 | 1.61 |
| 1-1/4" | CN1-1/4-1-7 | CN1-1/4-1-65 | 1-1/4 NPTF | 50 | 5,000 | 4.72 | 2.17 |
| 1-1/2" | CN1-1/2-1-7 | CN1-1/2-1-65 | 1-1/2 NPTF | 80 | 5,000 | 5.43 | 2.56 |
| 2" | CN2-1-7 | CN2-1-65 | 2 NPTF | 110 | 4,500 | 5.43 | 2.95 |
| Female SAE straight thread (O-ring boss) ports | |||||||
| -4 (1/4") | CS#4-1-7 | CS#4-1-65 | -4 SAE | 4 | 5,700 | 2.17 | 0.75 |
| -6 (3/8") | CS#6-1-7 | CS#6-1-65 | -6 SAE | 8 | 5,700 | 2.28 | 0.75 |
| -8 (1/2") | CS#8-1-7 | CS#8-1-65 | -8 SAE | 13 | 5,700 | 2.72 | 0.95 |
| -12 (3/4") | CS#12-1-7 | CS#12-1-65 | -12 SAE | 23 | 5,700 | 3.48 | 1.38 |
| -16 (1") | CS#16-1-7 | CS#16-1-65 | -16 SAE | 40 | 5,000 | 4.33 | 1.61 |
| -20 (1-1/4") | CS#20-1-7 | CS#20-1-65 | -20 SAE | 50 | 5,000 | 4.72 | 2.17 |
| -24 (1-1/2") | CS#24-1-7 | CS#24-1-65 | -24 SAE | 80 | 5,000 | 5.43 | 2.56 |
| -32 (2") | CS#32-1-7 | CS#32-1-65 | -32 SAE | 110 | 4,500 | 5.43 | 2.95 |
Dimensions in inches; letters as on the drawing.
4
How do I read the part number?
Example: CS#4-1-65.
| Code | Meaning |
|---|---|
| C | Check Valve |
| N / S# | Female NPTF / female SAE straight thread (dash size) |
| -1 | Standard |
| -7 / -65 | Cracking pressure, PSI |
For hydraulic use only; consult Anchor Fluid Power for fluid compatibility. Dimensions are subject to change without notice.
How is this product sold?
Each.
Additional Product Data:
MAWP:
5000
Shape:
Straight
Ends Configuration:
Material(s):
Specifications and Approvals:

