Function and configurationThe valve type Z2FRM is a 2-way flow control valve of sandwich plate design and type 2FRM6K is a 2-way flow control cartridge valve. The former is used for maintaining a cons...
Product Detail
Function and configuration
The valve type Z2FRM is a 2-way flow control valve of sandwich plate design and type 2FRM6K is a 2-way flow control cartridge valve. The former is used for maintaining a constant flow and is independent of the pressure and temperature.
The valve basically consists of a housing (1) and one or two flow control cartridges type 2FRM6K (9).
The throttling of the flow from port A2/B2 (A) to port A1/B1 (B) occurs at the throttle area (3). The throttle bolt (4) is driven by the adjustment element (2). To maintain a constant flow in port A1/B1(B) which is independent of pressure, a pressure compensator (5) is fitted downstream of the throttle area (3).
The pressure compensator (5) is pressed against the plug (8), via a compression spring (7). When there is no oil flow, pressure compensator (5) keeps in open position. If there is flow through the valve then the pressure in port A2/B2(A) acts on the pressure compensator (5). Then the pressure compensator (5) moves until the forces are balanced. If the pressure in port A2/B2 (A) increases, then the pressure compensator (5) moves in the closing direction until the forces are balanced again. Due to the continuous compensation by the pressure compensator, a constant flow is achieved.
Free flow from port A1/B1 (B) to port A2/B2 (A) is via check valve (6).
Symbols (① =valve side ② = sub-plate side)
Ordering code
Technical data
| Sandwich flow control valve type Z2FRM 6 | Flow control valve type 2FRM6K | |
| Mounting type | Flat mounting interface | Install position:optional |
| Connection type | Indirect connection via a subplate or block, porting pattern to DIN 24 340 form A, ISO 4401 and CETOP-RP 121 H | |
| Weight kg | 1.3 (flow control function in ports A, B or T) | 0.2 |
| 1.5 (flow control function in ports A and B) | ||
| Nominal pressure bar | 315 | |
| Fluid | Mineral oil,Phosphoric acid ester | |
| Fluid temperature range ℃ | -20 to+80 | |
| Viscosity range m㎡/s | 10 to 800 | |
| Flow range L/min | 0.05~6;0.25~32 | |
| Degree of contamination | Maximum permissible degree of fluid contamination: Class 9.NAS 1638 or 20/18/15, ISO4406 | |
| Min.pressure drawdown bar | 18 (Flow control valve type 2FRM6K) | |
| Pressure stability to % ΔP=315 bar | ±3(Qmax) | |
Characteristic curves (Measured at oil=40°C +5°C, using HLP46)
Unit dimensions:
. Sandwich flow control valve Type Z2FRM6
Unit dimensions:
· Sandwich flow control valve Type Z2FRM6
Type Z2FRM 6T
Symbols of rotation the component about the "X"-"X" axis
(① =valve side ② =sub-plate side)
Unit dimensions:
· Flow control valve Type 2FRM6K
