6/2 way directional valve type 6/2UREM6 and 6/2URMM6 type 6/2UREM, 6/2URMM
14Pages

6/2 way directional valve type 6/2UREM6 and 6/2URMM6 NS6 up to 35 MPa up to 50 dm3/min DATA SHEET - OPERATION MANUAL APPLICATION Mobile 6 way 2 position stackable directional valves type 6/2UREM6... and 6/2URMM6... are intended for hydraulic systems where movement of consumers (cylinders or hydraulic motors) is controlled by means of one basic directional valve. Shifting of a proper section of valve 6/2UREM6... results in connecting the consumer to the basic directional valve. The valves are used for in-line mounting in any position. DESCRIPTION OF OPERATION 6/2UREM6-12/B 0 G2 Y G24 N Z4 Mobile 6 way directional valves type 6/2UREM6... (solenoid controlled) and 6/2URMM6... (hand lever controlled) are used as one unit or blocks with maximum 5 sections. The sections with different control are stackable. Each section has ports A and B to connect the consumer (e.g. hydraulic cylinder). Ports P1 and P2 on the side wall (F) of the front (or one unit) section are used to connect the basic directional valve. Ports C and D on the wall (R) of the rear (or one unit) are used to connect the consumer. Depending on the spool position lines P1 and P2 are connected correspondingly to lines A and B or C and D. Ports P1, P2 and C, D are situated opposite each other what allows the transfer of supply from the previous to the next section of the stackable valve at initial position of spool (2). Solenoid controlled section consists of a housing (1), control spool (2), solenoid (3) and return spring (4). In the case of manually controlled section the function of the solenoid is performed by a hand lever unit. In version 6/2UREM6../...OF... (without springs, with detent) the spool (2) is positioned and hold by means of the detent (5). Its shift results from energizing of one of the solenoids. In version 6/2UREM6.../O... (without spring, without detent) the spool (2) is positioned and hold by the energized solenoid. At version 6/2UREM6...Y... port Y is to be connected to tank.

TECHNICAL DATA Hydraulic fluid Required fluid cleanliness class Nominal fluid viscosity Viscosity range ISO 4406 class 20/18/15 37 mm 2 /s in temperature 55 oC 2,8 do 328 mm2 /s 40 oC to 55 oC recommended Fluid temperature range (in tank) max Ambient temperature range - for version with electrically operated sections Ambient temperature range - for version without electrically operated sections Max operating pressure (in port P1, P2, A, B, C, D) Max pressure in port Y Max switching frequency with drain port Y connected to tank without drain port (port Y plugged) 21 MPa 15000 on/h with 1...

DIAGRAMS Hydraulic diagrams of sections of directrional valve type 6/2UREM6... mechanically operated Hydraulic diagrams of sections of directional valve t ype 6/2UREM6... solenoid operated P1 P2 Hydraulic diagrams for spools working and intermediate positions working positions working and intermediate positions working positions

Detailed hydraulic diagrams of directional valve type 6/2UREM6... next sections first section ports of main directional valve next sections first section ports of main directional valve

OVERALL AND CONNECTION DIMENSIONS type 6/2 UREM6... - versions: 6/2UREM6.../A...; ...B... - dimensions of 1 section valve version 1 - Sealing ring kantseal 25,12 x 1,68 - 2 pcs./set 2 - Sealing ring kantseal 17,17 x 1,68 - 1 pc./set 3 - Plug-in-connector type ISO 4400 (DIN 43650 - A) 4 - Space for plug dismounting NOTE: For placing an order of one section with (sealings (1) and (2)) as an element of sectional valve, in order code the option 0 is chosen. -5-

OVERALL AND CONNECTION DIMENSIONS type 6/2UREM6... - versions: 6/2UREM6.../C...; ...D... - dimensions of 1 section G1/4 depth 12 G depth 15 - 6 holes (P1, P2, A, B, C, D) valve version 1 - Sealing ring kantseal 25,12 x 1,68 - 2 pcs./set 2 - Sealing ring kantseal 17,17 x 1,68 - 1 pc./set 3 - Plug-in-connector type ISO 4400 (DIN 43650 - A) 4 - Space for plug dismounting NOTE: For placing an order of one section with (sealings (1) and (2)) as an element of sectional valve, in order code the option 0 is chosen. -6-

OVERALL AND CONNECTION DIMENSIONS type 6/2URMM6... - dimensions of 1 section 1 - Sealing ring kantseal 25,12 x 1,68 - 2 pcs./set 2 - Sealing ring kantseal 17,17 x 1,68 - 1 pc./set G valve version NOTE: For placing an order of one section with (sealings (1) and (2)) as an element of sectional valve, in order code the option 0 is chosen.

OVERALL AND CONNECTION DIMENSIONS type 6/2UREM6 - versions: 6/2UREM6.../...O... - dimensions of 1 section 6/2UREM6.../...OF...- dimensions of 1 section valve version 1 - Sealing ring kantseal 25,12 x 1,68 - 2 pcs./set 2 - Sealing ring kantseal 17,17 x 1,68 - 1 pc./set 3 - Plug-in-connector type ISO 4400 (DIN 43650 - A) 4 - Space for plug dismounting NOTE: For placing an order of one section with (sealings (1) and (2)) as an element of sectional valve, in order code the option 0 is chosen. -8-

OVERALL AND CONNECTION DIMENSIONS version of 3-section directional valve type 6/2UREM6 ~169 1 - Sealing ring kantseal 25,12 x 1,68 - szt. 2 x (n - 2) 2 - Sealing ring kantseal 17,17 x 1,68 - szt. (n - 1) n - Number of sections

OVERALL AND CONNECTION DIMENSIONS type 6/2 UREM6... - version 6/2UREM6.../...W... - dimensions of single directional valve space for plug dismounting valve version

PERFORMANCE CURVES measured at v = 41 mm2 /s and temperature t = 50 C Flow resistance curves for directional valves type 6/2UREM6... and 6/2URMM6... performance curves ∆p (Q) for directional valves with various number of sections 5 4,5 Operating limits curves for directional valves type 6/2UREM6... performance curves p-Q - flow directions: P1 → A; P1 → C; P2 → B; P2 → D 35 30 performance curves p-Q - flow directions: P1 → A; P1 → C; P2 → B; P2 → D; B → P2; D → P2; A → P1; C → P1 35 30 NOTE: Above operating limits are related to symmetrical flow through supply and return channel.

EXAMPLE OF APPLICATION IN A HYDRAULIC SYSTEM

Number of ways and spool positions 6-way / 2-position = 6/2 Type of control solenoid operated hand-lever operated Series number (10-19) - connection and installation dimensions unchanged series 12 Spool diagrams diagram A diagram B diagram C diagram D Total number of sections (1, 2, 3, ..., n,...max 5) directional valve n-sectional - see pages 5 to 9 = n one section of sectional directional valve (exists for Y version only) see pages 5 to 8 =0 single directional valve (exists for UREM type only) - see page 10 =W Type of connection BSP threads G 3/8 acc. to DIN 3852 (P1, P2, A, B, C, D) BSP...