Miniature Directional Control Valves
TR ENGINEERING INCORPORATED Directional Control Valves - MDC Series
MDC Manifold Mount Valve
MDC Side Port Valve
MDC Bottom Port Valve
TR Engineering’s MDC Series directional control valves are used in a broad range of applications, including instrumentation systems for power plants, jet engine transport trailers and testing systems. They are also used on our own line of hydraulic hand pumps due to their compact size and high reliability.
Standard MDC Series Valves:
- Constructed of heat treated alloy steel and aluminum components
- Compact and lightweight
- Shift easily even under maximum pressure
- Extremely low leakage, less than one (1) drop per two (2) minutes at rated pressure
- Two working pressure ratings are available, 3000 PSI and 6000 PSI
- CV factor is .26 for the 1/8″ NPT and -4 SAE, and .29 for the 1/4″ NPT and -6 SAE
- Normal operating temperature range is -40 degrees F to +160 degrees F with standard nitrile seals
- The manifold mounting conforms to DO3 mounting pattern
- For panel mounting, the hole should be 1 13/32″ diameter, with a maximum thickness of 5/16″.
- High strength mounting bolts are included with manifold mount valves
Special Options:
- For 2 position detent (No Center), Add -D to the end of the model number
- For Shortened Handle, Add -H to the end of the model number
- Stainless Steel Construction: See Stainless Steel MDC Series Page for details.
- 10000 PSI Pressure Rating: See MDCH Series Page for details.
The -7 manipulator configuration provides a special 4-way flow pattern which is ideal for pilot applications. In the neutral position, P is blocked and A and B are connected to tank. There is a restriction in neutral between A, B and tank, and this valve cannot be used where return flow through A and B is high.
Click Here to view parts breakdown for MDC Series Directional Control Valves.
Click Here to view installation drawings for this product.
| Series | Pressure Rating PSI | Port Configuration | Flow Configuration | Port Size | Seals | Panel | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MDC | L | 3000 | 0 | Manifold | 2 | 2-way | 1 | 1/8" NPT | N | Nitrile (STD) | 0 | No |
| M | 6000 | 1 | Side | 3 | 3-way | 2 | 1/4" NPT | V | Viton | P | Yes | |
| 2 | Bottom | 4 | 4-way Closed | 3 | -4 SAE | E | EPR | |||||
| 5 | 4-way Tandem | 4 | -6 SAE | |||||||||
| 6 | 4-way Open | 5 | -6 Manifold | |||||||||
| 7 | Manipulator | |||||||||||
| NOTES: Develop valve model number from above table. On bottom ports, only 1/8" NPT, 1/4" NPT and -4SAE are available. |
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For Information about our Directional Control Valves, Hydraulic Hand Pumps or Fluid Power System Products, please email:
Info@TREngineering.com
TR ENGINEERING INCORPORATED Self Center Directional Control Valves - MDC Series
SCDC Manifold Mount Valve
SCDC Side Port Valve
SCDC Bottom Port Valve
TR Engineering’s Self Center MDC, 3000 PSI Max directional control valves are used in a broad range of applications, including instrumentation systems for power plants, jet engine transport trailers and testing systems. They are also used on our own line of hydraulic hand pumps due to their compact size and high reliability.
Standard Self Center MDC, 3000 Series Max:
- Constructed of heat treated alloy steel and aluminum components
- Compact and lightweight
- Shift easily even under maximum pressure
- Extremely low leakage, less than one (1) drop per two (2) minutes at rated pressure
- CV factor is .26 for the 1/8″ NPT and -4 SAE, and .29 for the 1/4″ NPT and -6 SAE
- Normal operating temperature range is -40 degrees F to +160 degrees F with standard nitrile seals
- The manifold mounting conforms to DO3 mounting pattern
- High strength mounting bolts are included with manifold mount valves
Click Here to view bottom and side port installation drawings for this product.
Click Here to view manifold mount installation drawings for this product.
| Series | Pressure Rating PSI | Port Configuration | Flow Configuration | Port Size | Seals | Panel Mounting | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SCMDC | L | 3000 | 0 | Manifold | 4 | 4-way Closed | 2 | 1/4" NPT | N | Nitrile (STD) | 0 | No |
| 1 | Side | 5 | 4-way Tandem | 3 | -4 SAE | V | Viton | P | Yes Special Bracket Plate |
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| 2 | Bottom | 6 | 4-way Open | 4 | -6 SAE | E | EPR | |||||
| 7 | Manipulator | 5 | -6 Manifold | |||||||||
| NOTES: Develop valve model number from above table. On bottom ports, 1/4" NPT and -4SAE are available. |
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For Information about our Directional Control Valves, Hydraulic Hand Pumps or Fluid Power System Products, please email:
Info@TREngineering.com
TR ENGINEERING INCORPORATEDDirectional Control Valves - MDCH Series
MDCH Valve
MDCH Valve
MDCH Valve
| Series | Pressure Rating PSI | Port Configuration | Flow Configuration | Port Size | Seals | Panel Mounting | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MDC | H | 10000 | 0 | Manifold | 4 | 4-way Closed | 2 | 1/4" NPT | N | Nitrile (STD) | 0 | No |
| 1 | Side | 5 | 4-way Tandem | 5 | -6 Manifold | V | Viton | P | Yes | |||
| 2 | Bottom | |||||||||||
| NOTES: Develop valve model number from above table. | ||||||||||||
TR ENGINEERING INCORPORATEDStainless Steel Directional Control Valves - S1MDC and S2MDC Series
Stainless Steel Directional Control Valves
Stainless Steel Directional Control Valves
Stainless Steel Directional Control Valves
TR Engineering’s Stainless Steel MDC Valves are available in 2 types of construction, S1MDC and S2MDC.
S1MDC Series: Offers stainless construction with a sealed rotor, bronze poppets and is available with a 3000 PSI pressure rating.
S2MDC Series: Offers stainless steel external parts for hydraulic service. The internal parts on the MDCS2 series are heat treated alloy steel and stainless steel. Available with 3000 PSI, 6000 PSI or 7500 PSI Pressure Ratings.
Standard Stainless Steel MDC Series Valves:
- Compact and lightweight
- Shift easily even under maximum pressure
- Extremely low leakage, less than one (1) drop per two (2) minutes at rated pressure
- Two working pressure ratings are available, 3000 PSI and 6000 PSI.
- CV factor is .26 for the 1/8″ NPT and -4 SAE, and .29 for the 1/4″ NPT and -6 SAE.
- Normal operating temperature range is -40 degrees F to +160 degrees F with standard nitrile seals.
- The manifold mounting conforms to DO3 mounting pattern
- For panel mounting, the hole should be 1 13/32″ diameter and with a maximum thickness of 5/16″.
- Stainless Steel Mounting bolts are included with manifold mount valves.
Special Options
- For 2 position detent (No Center), Add -D to the end of the model number
- For Shortened Handle, Add -H to the end of the model number
The -7 manipulator configuration provides a special 4-way flow pattern which is ideal for pilot applications. In the neutral position, P is blocked and A and B are connected to tank. There is a restriction in neutral between A, B and tank, and this valve cannot be used where return flow through A and B is high.
Click Here to view installation drawings for this product.
| Series | Pressure Rating PSI | Port Location | Rotor Configuration | Port Size | Seals | Panel Mounting | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S1MDC | L | 3000 | 0 | Manifold | 3 | 3-Way | 2 | 1/4" NPT | N | Nitrile | 0 | No |
| S2MDC | M | 6000 S2MDC Only | 1 | Side | 4 | 4-Way Closed | 3 | - 4 SAE | V | Viton | P | Yes |
| H | 7500 S2MDC Only | 2 | Bottom | 5 | 4-Way Tandem | 5 | - 6 Manifold | E | EPR | |||
| 6 | 4-Way Open | |||||||||||
| 7 | Manipulator | |||||||||||
| NOTES: Develop valve model number from above table. S1MDC Series: Only available with 3000 PSI Pressure Rating On Bottom Port Valves, only 1/8" NPT, 1/4" NPT and -4SAE are available. | ||||||||||||