BEIJING HUADE 2-way flow control valve,Type 2FRM

RE:28138/12.2004
HYDRAULIC INDUSTRIAL
Replaces

GROUP CO.,LTD. Size 5 up to 21MPa up to 15 L/min
RE28138/05.2001

Features:
- Porting pattern to DIN 24 340, from A,ISO
4401 and CETOP-RP 121H
- Pressure compensator stroke limiter, optional
- Decrease of start-up jump
- Flow control in both directions using a recti-
fier sandwich plate
- Lockable rotary knob

Function , section

The 2FRM flow valve is a 2-way flow control valve.It mainly consists of housing(1),setting element(2),orifice(3),
pressure compensator(4)optionally with stroke limiter as well as check valve(5) and is used for the throttling of a
flow at low pressure and temperature dependency.
The throttling cross section is set by the roration of the curve bolt(7).To keep the flow constant independent from
the pressure at the throttling point(8) a pressure compensator (4)is connected.The temperation independance is
the result of the throttling point being constructed as an orifice.
The free flow return from B to A is via the check valve(5).
In order to reach a controlled through flow of the valve in either direction there is the possibility to install a rectifier
sandwich plate type Z4S below the flow control valve.

PP
HUADE HYDRAULICS
 Ordering code: 2-way flow control valves

2FRM5-30 B / *
Series 30 (30 to 39: unchanged installation and
Further details in clear text
connection dimensions) =30

No code = Mineral oil

Technology of Beijing Huade Hydraulic =B
V = Phospate ester
(other seals on enquiry)

Progressive Progressive

0.2L/min=0.2Q 10L/min=10Q
No code = without pressure compensator
0.6L/min=0.6Q 15L/min=15Q stroke limiter
B = with pressure compensator stroke limiter
1.2L/min=1.2Q

3L/min=3Q flow direction

6L/min=6Q A
B

Technical data: (for applications outside these parameters, please consult us!)

General Rectifier sandwich plate

Hydraulic fluid Mineral oil(for NBR seal) or Phospate ester (for FPM seal) Flow, max
L/min
15

Temperature range
 -30
 80 Operating pressure
MPa
up to 21

Viscosity range
mm 2/s
10
800 Cracking pressure
MPa
0.1

Weight
Kg
0.6

2-way flow control valve

Flow q V max
L/min
0.2 0.6 1.2 3.0 6.0 10.0 15.0

p with free return flow B
A, q V -dependent
MPa
0.05 0.05 0.06 0.09 0.18 0.36 0.67

Flow control temperature-stable
5%
3%
2%

pressure-stable (up to
p = 21.0 MPa)
2%
4%

Operating pressure, max. - port A
MPa
to 21

Minimum pressure difference range
MPa
0.3 to 0.5 0.6
0.8

Degree of contamination
 m
25
Q
5L/min
10
Q
0.5L/min

Weight
Kg
1.6

Ordering code:Rectifier sandwith plate

Z4S5-10 B / *

Series 10 (10 to 19: : unchanged installation and Further details in clear text
connection dimensions) = 10

No code = Mineral oil

Technology of Beijing Huade Hydraulic =B
V= Phospate ester

HUADE HYDRAULICS
PQ

Ordering code: 2-way flow control valve

Symbols

Flow control valve

simplified

Flow control valve

detailed

Rectifier sandwich plate

Required surface finish

of the mating piece

1.Adjustment element, lockable rotary knob(may be locked in any position)

Turning range 300
= 10 scale divisions
Tighting torque MA =0.5 Nm
2.Nameplate Subplates for: see page 69
3.O-ring 12 x 2 G 44/01 (G 1/4") G 44/02 (M14
1.5)
4.Pressure compensator stroke limiter G 45/01 (G 1/2") G 45/02 (M22
1.5))

Characteristic curves: 2-way flow control valve (measured at v = 41 mm2/s and t = 50
)

Flow qv dependent on scale (flow

Operating curve of rectifier sandwich plate
control from A to B):
../15Q..
Pressure difference in MPa

Pressure difference in MPa

../10Q..

../6Q..

../3Q..

../1.2Q..
../0.6Q..
../0.2Q..

Scale divisions Flow in L/min

PR
HUADE HYDRAULICS
 Unit dimensions: Rectifier sandwich plate (Dimensions in mm)

O-ring 12X2

Required surface finish

of the mating piece

HUADE HYDRAULICS
PS
All rights reserved-Subject to revision

 Notice
1. The fluid must be filtered. Minimum filter fineness is 20 µm.

2. The tank must be sealing up and an air filter must be installed on air entrance.
3. Products without subplate when leaving factory, if need them, please ordering specially.

4. Valve fixing screws must be high intensity level (class 10.9). Please select and use them

according to the parameter listed in the sample book.

5. Roughness of surface linked with the valve is required to .

6. Surface finish of mating piece is required to 0.01/100mm.

All rights reserved-Subject to revision

_______________________________________________________

THM Huade Hydraulics (P) Ltd

F-127, Focal Point, Phase VIII
Ludhaiana-141010, India
Phone: 0091+161+2672777, Fax: 0091+161+2672778
www.thmhuade.com
info@thmhuade.com, sales@thmhuade.com