Normally closed modulating element valve with relief function
Capacity: 5 gpm20 L/min. |
Cavity: T-163A
Technical Features [ + ]
Three-port normally closed modulating elements with relief provide two functions when combined with an external orifice. The mainstage is a bypass compensator that controls a priority flow into the circuit, determined by the external orifice. Input flow in excess of the priority flow is bypassed to tank (port 2). If the inlet (port 1) pressure rises to the valve setting, the valve operates as a normal relief valve.
- Compensating pressure for all ranges is 50 psi (3,5 bar).
- Explanation of the performance curve: The X axis is system pressure. The Y axis shows the pressure differential that the valve creates across the control orifice. The curves represent various bypass flows (pump flow minus control flow). The capacity and performance of this valve is determined by the bypass flow, control flow is not a factor.
Technical Data [ + ]
Note: Data may vary by configuration. See CONFIGURATION section.
Cavity | T-163A |
Series | 0 |
Capacity | 5 gpm20 L/min. |
Maximum Operating Pressure | 5000 psi350 bar |
Factory Pressure Settings Established at | 4 gpm15 L/min. |
Maximum Valve Leakage at 110 SUS (24 cSt) | 2 in³/min.@1000 psi30 cc/min.@70 bar |
Response Time - Typical | 10 ms10 ms |
Adjustment - No. of CW Turns from Min. to Max. setting | 55 |
Valve Hex Size | 3/4 in.19,1 mm |
Valve Installation Torque | 20 - 25 lbf ft27 - 33 Nm |
Adjustment Screw Internal Hex Size | 5/32 in.4 mm |
Locknut Hex Size | 9/16 in.15 mm |
Locknut Torque | 80 - 90 lbf in.9 - 10 Nm |
Model Weight | .30 lb0,15 kg |
Seal kit - Cartridge | Buna: 990163007 |
Seal kit - Cartridge | Polyurethane: 990163002 |
Seal kit - Cartridge | Viton: 990163006 |
Performance Curves [ + ]
FAQs [ + ]
There are exactly 250 Sun drops in a cubic inch or 15 in a cc.
Only external seals are serviceable. Sun offers replacement seal kits for all cartridge models. The applicable kit part number can be found in the product page's Technical Data table or by using our Cartridge Seal Kit search function located under Accessories. Please note: Converting the external seals from one material to another does not ensure fluid compatibility with that material due to the existence of internal seals within the cartridge.
Additional Resources [ + ]
Highlights
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Technical Tips
- Manufacturing Sun Cartridge Cavities (522.27 KB)
Technical Information