Analogues of Soviet Discrete and Intrinsically Safe Directional Control Valves From Motorimpex: Modernization and Import Substitution of Directional Hydraulic Valves
Industrial equipment designed to Soviet GOST standards — machine tools, hydraulic presses, injection-molding machines, mining equipment and metallurgical machinery — is still widely used at Ukrainian industrial sites. However, the directional hydraulic control equipment in these machines, including on/off spool directional control valves and intrinsically safe explosion-proof hydraulic directional control valves, has long exceeded its service life and increasingly causes unplanned production downtime.
The Motorimpex Engineering Center provides professional selection, sales and supply of modern high-precision replacements for Soviet hydraulic components. Hydraulic directional control valves from leading European brands Oleodinamica Mozioni (Italy), Ponar (Poland) and Atos (Italy) fully comply with the international ISO 4401 standard (CETOP 3, CETOP 5, CETOP 7, CETOP 8, CETOP 10) and can be installed on the original mounting interfaces and existing subplates without additional milling or welding.
Why Soviet Spool Directional Control Valves Need Immediate Replacement
Outdated solenoid-operated directional control valves (series ВЕ6, ВЕ10, РЕ6, РЕ10, ВЕ16, ВЕХ), manually operated valves (ВММ6, ВММ10, РММ, РММС) and mechanically or hydraulically actuated valves (РМР, РХС) create serious risks for production equipment.
Housing wear and deterioration of the sliding surfaces reduce smooth spool movement, which can cause hydraulic drive failure and emergency equipment shutdowns.
Older DC 24V and AC 110V/220V solenoids have low protection ratings and often fail under load.
Outdated rubber seals manufactured to GOST standards lose elasticity, causing pressure loss in the hydraulic system and hydraulic oil leakage.
Outdated intrinsically safe directional control valves used on mining and chemical equipment do not meet current ATEX / IECEx safety requirements.
Interchangeability Table: Soviet Hydraulic Directional Control Valves → Modern Replacements
The table below shows direct replacements for Soviet on/off and intrinsically safe directional control valves using modern alternatives supplied by Motorimpex. Each replacement fits the original mounting interface without modifying the subplate.
Manually and Hydraulically Operated Directional Control Valves
| Soviet Equipment | Modern Replacement | ||
|---|---|---|---|
| Directional Control Valves DN 6 (manual operation) |
 |
 |
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| Old designations: PMM 6.3, BMM6 |
New designation:4WMM6 manufactured by Oleodinamica Mozioni (Italy) |
New designation:WMM6 manufactured by Ponar (Poland) |
|
| Directional Control Valves DN 10 (manual operation) |
 |
 |
 |
| Old designations: PMM 10.3, BMM10 |
New designation:4WMM10 manufactured by Oleodinamica Mozioni (Italy) |
New designation:WMM10 manufactured by Ponar (Poland) |
|
| Directional Control Valves DN 20 (hydraulic actuation) |
 |
 |
 |
| Old designation: PXC 20.3 |
New designation:WH22 manufactured by Ponar (Poland) |
New designation:DP-4 manufactured by Atos (Italy) |
|
| Directional Control Valves DN 6 (mechanical actuation) |
 |
 |
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| Old designation: PMP 6.3 |
New designation:WMR6 manufactured by Ponar (Poland) |
New designation:DH-02 manufactured by Atos (Italy) |
|
| Directional Control Valves DN 10 (mechanical actuation) |
 |
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| Old designation: РМР 10.3 |
New designation:WMR10 manufactured by Ponar (Poland) |
New designation:DK-12 manufactured by Atos (Italy) |
|
Intrinsically Safe and Solenoid-Operated Directional Control Valves
| Soviet Equipment | Modern Replacement | |
|---|---|---|
| Intrinsically Safe Directional Control Valve (solenoid-operated) |
 |
 |
| Old designation: 1П110.16.02.060 |
New designation:DPHW/M-1 manufactured by Atos (Italy) |
|
| Directional Control Valves DN 6 (solenoid-operated) |
 |
 |
| Old designations: PE 6.3-\*, ВЕ6, РГ4-6/3ш |
New designation:WE6 manufactured by Oleodinamica Mozioni (Italy) |
|
| Directional Control Valves DN 10 (solenoid-operated) |
 |
 |
| Old designations: PE 10.3-, BE10, РГ4-10/3 |
New designation:WE10 manufactured by Oleodinamica Mozioni (Italy) |
|
| Directional Control Valves DN 16 (solenoid-operated) |
 |
 |
| Old designations: PEX 16.3-, BEX16 |
New designation:WEH16 manufactured by Oleodinamica Mozioni (Italy) |
|
| Directional Control Valves DN 20 (solenoid-operated) |
 |
 |
| Old designations: PEX 20.3-6, 1P203, 1P202, 2P203, 2P202 |
New designation:WEH25 manufactured by Oleodinamica Mozioni (Italy) |
|
| Directional Control Valves DN 32 (solenoid-operated) |
 |
 |
| Old designations: PEX 32.3, 1P323, 1P322, 2P323, 2P322 |
New designation:WEH32 manufactured by Oleodinamica Mozioni (Italy) |
|
| Directional Control Valves DN 20 (manual operation) |
 |
 |
| Old designations: PMMC 20.3, 1PH203 |
New designation:4WMM20 manufactured by Oleodinamica Mozioni (Italy) |
Technical Advantages of Replacing Spool Directional Control Valves
- Full ISO 4401 (CETOP) Standardization:WE6 (CETOP 3) and WE10 (CETOP 5) can be installed directly on the original subplates in place of Soviet ВЕ6 and ВЕ10 valves.
- High Operating Pressure and Flow Capacity:modern valves operate at pressures up to 315–350 bar, with flow capacities of up to 80–160 L/min for DN 6/DN 10 and up to 650 L/min for DN 20/DN 32.
- Solenoid Coil Protection:a wet-pin solenoid with IP65/IP67 protection allows quick coil replacement without opening the hydraulic system.
- Accurate Switching:a reliable lever-position mechanism with spring return or detented positions prevents unintended spool movement.
- Wear-Resistant NBR and Viton (FKM) Seals:designed for high hydraulic-fluid temperatures and to prevent both external and internal oil leakage.
- International ATEX / IECEx / EAC Certification:designed for hazardous environments, mines, mineral-processing plants, chemical facilities and oil refineries.
- Intrinsically Safe and Explosion-Proof Design (Ex ia, Ex d):special sealed solenoids prevent ignition sources during electrical signal switching.
Why Buy Hydraulic Directional Control Valve Replacements From Motorimpex
Popular items such as WE6, WE10, 4WMM6, WMM10, ВЕ6, ВЕ10 and 24V / 220V coils are kept in stock.
Our engineers can select the correct replacement using your valve designation, drawing or hydraulic circuit diagram (14, 24, 34, 44, 64, 574, 574A, etc.).
For non-standard mounting dimensions, we manufacture adapter plates, fittings, adapters and modular hydraulic manifolds to order.
We supply certified products from Oleodinamica Mozioni, Ponar and Atos with an official warranty and service support.
To request a consultation and calculate the replacement cost for Soviet hydraulic directional control valves, complete the contact form on the website, request a callback or emailm-impex@motorimpex.ua. Our technical specialists will select the correct replacement and help you place the order.
Conclusion
Replacing worn Soviet directional hydraulic control equipment with modern alternatives from Oleodinamica Mozioni, Ponar and Atos restores hydraulic-drive reliability without modifying mounting subplates or stopping production for an extended period. Full compliance with ISO 4401, higher operating pressure, reliable seals and ATEX/IECEx certification for hazardous areas make this modernization a technically sound and cost-effective solution. The Motorimpex Engineering Center provides accurate replacement selection, keeps popular items in stock and manufactures custom adapters for your equipment.
