Industrial Hydraulic type Z2FRM6 Sandwich flow control valve Cartridge 32 L/min 315 Bar 6

Features

– Sandwich plate valve

– Porting pattern to DIN 24 340 Form A, without locating pin hole (standard)

– Porting pattern to ISO 4401 and CETOP–RP 121 H

– With 1 or 2 flow control cartridges

– Adjustment element with internal hexagon

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 portA1/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)

Specification

· Sandwich flow control valve Type Z2FRM6

· Flow control valve Type 2FRM6K

Technical data

Unit dimensions (Dimensions in mm)

Type Z2FRM6A... and Z2FRM 6 B...

Type Z2FRM 6 C...

· Sandwich flow control valve Type Z2FRM6

1 Name plate

2 Flow control cartridge type 2FRM6K hexagon 27A/F, MA = 50 Nm

3 Adjustment element with internal hexagon 3A/F

4 O-rings 9.25×1.78 (Ports A2, B2, P2, T2)

5 Valve fixing holes Valve fixing screws M5×** GB/T70.1-10.9 tightening torque MA = 50 Nm, the screws length accords to the sandwich valves

6 To convert from meter-out into meter-in control for version A, B and C, rotate the component about the "X"–"X" axis, and for version T, convert from Port T flow control into Port P flow control.

7 Z2FRM6A2... flow control in port A

8 Z2FRM6B2...flow control in port B

· Flow control valve Type 2FRM6K