Dynaco Hydraulic Co., Ltd.
Dynaco Hydraulic Co., Ltd. Your source for quality hydraulic pump and parts
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Dynaco VA20/VG20, DVA20/DVG20 directional control valves for open and closed centre circuits are of sectional design for flexibility of circuit construction. Each section also incorporates a load hold check valve to prevent interaction between services. Up to 10 sections can be banked in right hand and/or left hand and can be tandem, parallel or series circuit. These models offer a wide range of function configurations, assuring that a control valve meeting your specific needs is a call away.
Product Features:
1, Parallel/Open center standard;
2, Bulit-in, full flow relief valves;
3, Manual, hydraulic, electric or pneumatic operation;
4, Sectional construction for maximum flexibility;
5, Spool changeover capability for right or left hand valve assemblies;
6, Low spool effort - improved metering;
7, Flow up to 40 GPM;
8, Rated Pressure of DVA20: 2500 PSI; Rated Pressure of DVG20: 3500 PSI
9, Material: Compacted graphite, high strength iron alloy;
10, Replace Parker Commercial DVA/DVG20,VA/VG20, A20,V40,V42 and 25P Series, SDV40 series;
Standard Inlet Section:
| Dynaco Hydraulic | Parker Reference Number | Description |
| DV20-A44 | 347-9175-001 | Side port: 1″NPT, Top port: 1″ NPT |
| DV20-A77 | 347-9175-004 | Side port: SAE-12, Top port: SAE-12 |
| DV20-A88 | 347-9175-002 | Side port: SAE-16, Top port: SAE-16 |
Standard Mid-Inlet Section:
| Combined Flow | ||
| Dynaco Hydraulic | Parker Reference Number | Description |
| DV20-CFA30 | 347-9174-003 | Top port: 3/4″ NPT |
| DV20-CFA70 | 347-9174-004 | Top port: SAE-12 |
| Split Flow | ||
| Dynaco Hydraulic | Parker Reference Number | Description |
| DV20-SFA30 | 347-9174-001 | Top port: 3/4″ NPT |
| DV20-SFA70 | 347-9174-002 | Top port: SAE-12 |
| Main Relief Valve | ||
| Dynaco Hydraulic | Parker Reference Number | Description |
| DV20-MRV | 391-1873-001 | 2000psi, adj. 800-2500psi |
| DV20-MRV-2200 | 391-1873-001 | 2200psi, adj. 800-2500psi |
| DV20-MRV-2500 | 391-1873-001 | 2500psi, adj. 800-2500psi |
| DV20-HMRV | 391-1873-128 | 3000psi, adj. 2500-3500psi |
| DV20-HMRV-2600 | 391-1873-128 | 2600psi, adj. 2500-3500psi |
| DV20-MRVP | 391-1873-002 | Main relief valve plug with seal wash |
Work Section:
| Dynaco Hydraulic | Parker Reference Number | Description |
| DA3 | 347-9172-002 | 4 way 3 position hold in neutral, port size: 3/4″ NPT, spring return |
| DA7 | 347-9172-003 | 4 way 3 position hold in neutral, port size: SAE-12, spring return |
| DB3 | 347-9172-026 | 4 way 3 position hold in neutral, port size: 3/4″ NPT, 3 position detent |
| DB7 | 347-9172-027 | 4 way 3 position hold in neutral, port size: SAE-12, 3 position detent |
| DV3 | 347-9172-033 | 4 way 3 position hold in neutral, port size: 3/4″ NPT, metering air shift |
| DV7 | 347-9172-034 | 4 way 3 position hold in neutral, port size: SAE-12, metering air shift |
| DVA3 | 4 way 3 position hold in neutral, port size: 3/4″ NPT, on/off air shift | |
| DVA7 | 4 way 3 position hold in neutral, port size: SAE-12, on/off air shift | |
| DX3 | 347-9172-043 | 4 way 3 position hold in neutral, port size: 3/4″ NPT, metering hydraulic remote |
| DX7 | 347-9172-044 | 4 way 3 position hold in neutral, port size: SAE-12, metering hydraulic remote |
| MA3 | 347-9172-005 | 4 way 3 position float in neutral, port size: 3/4″ NPT, spring return |
| MA7 | 347-9172-006 | 4 way 3 position float in neutral, port size: SAE-12, spring return |
| MB3 | 347-9172-039 | 4 way 3 position float in neutral, port size: 3/4″ NPT, 3 position detent |
| MB7 | 347-9172-040 | 4 way 3 position float in neutral, port size: SAE-12, 3 position detent |
| MV3 | 347-9172-136 | 4 way 3 position float in neutral, port size: 3/4″ NPT, metering air shift |
| MV7 | 347-9172-137 | 4 way 3 position float in neutral, port size: SAE-12, metering air shift |
| MVA3 | 4 way 3 position float in neutral, port size: 3/4″ NPT, on/off air shift | |
| MVA7 | 4 way 3 position float in neutral, port size: SAE-12, on/off air shift | |
| MX3 | 347-9172-062 | 4 way 3 position float in neutral, port size: 3/4″ NPT, metering hydraulic remote |
| MX7 | 347-9172-063 | 4 way 3 position float in neutral, port size: SAE-12, metering hydraulic remote |
| SA3 | 347-9171-002 | 3 way 3 position hold in neutral, port size: 3/4″ NPT, spring return |
| SA7 | 347-9171-003 | 3 way 3 position hold in neutral, port size: SAE-12, spring return |
| SB3 | 347-9171-026 | 3 way 3 position hold in neutral, port size: 3/4″ NPT, 3 position detent |
| SB7 | 347-9171-027 | 3 way 3 position hold in neutral, port size: SAE-12, 3 position detent |
| SV3 | 347-9101-129 | 3 way 3 position hold in neutral, port size: 3/4″ NPT, metering air shift |
| SV7 | 347-9171-018 | 3 way 3 position hold in neutral, port size: SAE-12, metering air shift |
| SVA3 | 3 way 3 position hold in neutral, port size: 3/4″ NPT, on/off air shift | |
| SVA7 | 3 way 3 position hold in neutral, port size: SAE-12, on/off air shift | |
| SX3 | 3 way 3 position hold in neutral, port size: 3/4″ NPT, spring return, metering hydraulic remote | |
| SX7 | 347-9101-161 | 3 way 3 position hold in neutral, port size: SAE-12, spring return, metering hydraulic remote |
| Hi-Boy Work Sections | ||
| Dynaco Hydraulic | Parker Reference Number | Description |
| HDA3 | 347-9172-008 | 4 way 3 position hold in neutral, port size: 3/4″ NPT, spring return |
| HDA7 | 347-9172-009 | 4 way 3 position hold in neutral, port size: SAE-12, spring return |
| HDA7-PA | 4 way 3 position hold in neutral, port size: SAE-12, spring return | |
| HDA7-PB | 4 way 3 position hold in neutral, port size: SAE-12, spring return | |
| HDB3 | 347-9172-017 | 4 way 3 position hold in neutral, port size: 3/4″ NPT, 3 position detent |
| HDB7 | 347-9172-018 | 4 way 3 position hold in neutral, port size: SAE-12, 3 position detent |
| HDV3 | 347-9172-024 | 4 way 3 position hold in neutral, port size: 3/4″ NPT, metering air shift |
| HDV7 | 347-9172-025 | 4 way 3 position hold in neutral, port size: SAE-12, metering air shift |
| HDVA3 | 4 way 3 position hold in neutral, port size: 3/4″ NPT, on/off air shift | |
| HDVA7 | 4 way 3 position hold in neutral, port size: SAE-12, on/off air shift | |
| HDX3 | 347-972-045 | 4 way 3 position hold in neutral, port size: 3/4″ NPT, metering hydraulic remote |
| HDX7 | 347-9172-046 | 4 way 3 position hold in neutral, port size: SAE-12, metering hydraulic remote |
| HMA3 | 347-9172-011 | 4 way 3 position float in neutral, port size: 3/4″ NPT, spring return |
| HMA7 | 347-9172-012 | 4 way 3 position float in neutral, port size: SAE-12, spring return |
| HMB3 | 347-9172-177 | 4 way 3 position float in neutral, port size: 3/4″ NPT, 3 position detent |
| HMB7 | 347-9172-178 | 4 way 3 position float in neutral, port size: SAE-12, 3 position detent |
| HMV3 | 347-9172-126 | 4 way 3 position float in neutral, port size: 3/4″ NPT, metering air shift |
| HMV7 | 347-9172-127 | 4 way 3 position float in neutral, port size: SAE-12, metering air shift |
| HMVA3 | 4 way 3 position float in neutral, port size: 3/4″ NPT, on/off air shift | |
| HMVA7 | 4 way 3 position float in neutral, port size: SAE-12, on/off air shift | |
| HMX3 | 347-9172-072 | 4 way 3 position float in neutral, port size: 3/4″ NPT, metering hydraulic remote |
| HMX7 | 347-9172-073 | 4 way 3 position float in neutral, port size: SAE-12, metering hydraulic remote |
| HSA3 | 347-9171-005 | 3 way 3 position hold in neutral, port size: 3/4″ NPT, spring return |
| HSA7 | 347-9171-006 | 3 way 3 position hold in neutral, port size: SAE-12, spring return |
| HSB3 | 347-9171-010 | 3 way 3 position hold in neutral, port size: 3/4″ NPT, 3 position detent |
| HSB7 | 347-9171-012 | 3 way 3 position hold in neutral, port size: SAE-12, 3 position detent |
| HSV3 | 347-9171-011 | 3 way 3 position hold in neutral, metering air shift |
| HSV7 | 3 way 3 position hold in neutral, metering air shift | |
| HSVA3 | 3 way 3 position hold in neutral, on/off air shift | |
| HSVA7 | 3 way 3 position hold in neutral, on/off air shift | |
| HSX3 | 3 way 3 position hold in neutral, port size: 3/4″ NPT, spring return, metering hydraulic remote | |
| HSX7 | 3 way 3 position hold in neutral, port size: SAE-12, spring return, metering hydraulic remote |
Standard Outlet Section:
| Tank Return | ||
| Dynaco Hydraulic | Parker Reference Number | Description |
| DV20-TR44 | 347-9176-001 | Side port: 1″NPT, Top port: 1″ NPT |
| DV20-TR50 | 347-0176-501 | Side port: 1-1/4″ NPT, Top port: no port |
| DV20-TR88 | 347-9176-002 | Side port: SAE-16, Top port: SAE-16 |
| DV20-TTR88 | 347-9176-007 | Side port: SAE-16, Top port: SAE-16 |
| DV20-TTR90 | 347-9176-024 | Side port: SAE-20, Top port: no port |
| Power Beyond | ||
| Dynaco Hydraulic | Parker Reference Number | Description |
| DV20-PB08 | 347-9176-005 | Side port lp: no port, side port hp: no port, top port lp: SAE16, top port hp: SAE-16 |
| DV20-PB44 | 347-9176-003 | Side port lp: 1″ NPT, side port hp: 1″ NPT, top port lp: 1″ NPT, top port hp: 1″ NPT |
| DV20-PB80 | 347-9176-004 | Side port lp: SAE-16, side port hp: SAE-16, top port lp: no port, top port hp: no port |
| DV20-PB88 | 347-9176-007 | Side port lp: SAE-16, side port hp: SAE-16, top port lp: SAE-16, top port hp: SAE-16 |
| DV20-TPB88 | 347-9176-008 | Side port lp: SAE-16, side port hp: SAE-16, top port lp: SAE-16, top port hp: SAE-16 |
Handle Assembly:
| Dynaco Hydraulic | Parker Reference Number | Description |
| DV20-H-4 | 391-1873-094 | Handle length: 8″, handle style: standard |
| DV20-H-6 | 391-1873-061 | Handle length: 6″, handle style: H |
| DV20-H-8 | 391-1873-062 | Handle length: 8″, handle style: H |
| DV20-H-10 | 391-1873-063 | Handle length: 10″, handle style: H |
Catalogs Download:
Dynaco V20 VG20 VG35 control valves.pdf
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CONTACT US
Business Phone/WhatsApp : +86 13951634086
Skype : info_300391
Email : info@dynacohydraulic.com; nbgears@dynacohydraulic.com; nbgears@163.com