Jiangsu Huafilter Hydraulic Industry Co., Ltd.
Jiangsu Huafilter Hydraulic Industry Co., Ltd.
Προϊόντα
Προϊόντα
Βαλβίδα ανακούφισης πίεσης DB3U
  • Βαλβίδα ανακούφισης πίεσης DB3UΒαλβίδα ανακούφισης πίεσης DB3U

Βαλβίδα ανακούφισης πίεσης DB3U

Το Huafilter είναι ο εξουσιοδοτημένος διανομέας του Huade Hydraulic, που ειδικεύεται στην παροχή βαλβίδων πίεσης μάρκας Huade®. Η βαλβίδα ανακούφισης πίεσης DB3U είναι αναμφισβήτητα ανταγωνιστική στην αγορά λόγω της σταθερής απόδοσής της και της σχετικά χαμηλότερης τιμής. Λόγω αυτού του μοναδικού σημείου πώλησης, είναι ήδη δημοφιλείς στους Κινέζους καταναλωτές. Οι βαλβίδες υδραυλικής πίεσης Huade® συμμορφώνονται πλήρως με τα διεθνή πρότυπα και μπορούν να καλύψουν τις ανάγκες των πελατών. Έχουμε επαγγελματικούς μηχανικούς πωλήσεων που μπορούν να παρέχουν υπηρεσίες επιλογής για να ταιριάζουν με τα προϊόντα της Rexroth. Ψάχνετε για οικονομικά αποδοτικά προϊόντα, παρακαλώ επιλέξτε μας!

Huade Hydraulic pays more attention to the practicality of its products. Pressure relief valve DB3U are competitive with well-know products with good quality and lower price. Huade Hydraulic has introduced cutting-edge technology from Rexroth due to two long-term cooperation with Rexroth. As a leading brand in China's hydraulic industry, Huade® pressure relief valves win wide market recognition and user trust. All branches of the enterprise have passed ISO9001, ISO14001 and OH SAS18001. Huade® leading products have received the CCS (China Classification Society) certificate and widely used in the marine industry.

Product parameter of Pressure Relief Valve DB3U

Size

8

10

15

20

25

30

Flow(L/min)

Threaded connection

100

200

400

600

Subplate mounting

-

200

-

400

-

600

Operating pressure (MPa)

ports A,B,X.up to31.5

Back pressure (port Y) (MPa)

up to 31.5

Min. Setting pressure (MPa)

see operating curves

Max. Setting pressure (MPa)

up to10 or 31.5

Pressure fluid

Mineral oil (for NBR seal)or phosphate ester(for FPM seal)

Viscosity range (mm ²/s)

10 to 800

Temperature range(℃)

-30 to +80

Size of directional valve

see directional valve 4WE5


Product Feature And Application of Pressure Relief Valve DB3U

Features:

▶ Subplate mounting

▶ Threaded connection

▶ Installation in manifolds

▶ 3 adjustment elements:

. Rotary knob

. Screw with internal hexagon and protective cap

. Rotary knob with scale

▶ Solenoid operated control via mounted directional valve


Application:

Pressure relief valve DB3U are used for the limitation of the operating pressure.

Section And Symbols of Pressure Relief Valve DB3U

Types DB3U pressure valves are pilot operated pressure relief valves. They may be switched over to different (2 or 3 pressure stage) by solenoids actuated.

The pressure relief valves consist mainly of the main valve. 4/3,4/1-Directional control valve (Type WE5...) and three pilot valves.

In the de-energized condition the pressure in port A is set by pilot valve(7).

The pressure present in port A acts on the main spool (1). At the same time pressure is applied via the control lines (12) and (4), which are fitted with orifices (2) and (3), on the spring loaded side of the main spool (1) and at the poppet(6) in the pilot control valve (7). If the pressure in   port A exceeds the value set at the spring (8), the poppet

(6) opens against the spring (8).

The signal for this comes internally via the control lines (12) and (4) from port A. The pressure fluid on the spring loaded side of the main spool(1) now flows via the control line (3), poppet (6) into the spring chamber(9). In type DB3U...30/..., it flows internally via the control line (10) to tank, or in type DB3U..30/..Y.., externally via the port Y. Due to the orifices (2) and (3) a pressure drop occurs at the main spool(1), the connection from port A to port B is open. Now the pressure fluid flows from port A to port B while maintaining the valve set operating pressure.

When solenoid “a” is energized:  The pressure in port A is set by pilot valve II.

When solenoid “b” is energized:  The pressure in port A is set by pilot valve I.

The setting pressure of pilot valve(7) should be higher than the setting pressure of the pilot I and II.

Type DB2U

Type DB2U pressure valves consist mainly of a directional control valve (Type WE5...) and three pilot valves, the function of this valve is basically the same as the valve type DB3U.


structure of Pressure Relief Valve DB3U


Symbols


Hot Tags: Βαλβίδα ανακούφισης πίεσης DB3U, Κίνα, κατασκευαστής, προμηθευτής, εργοστάσιο, χονδρική, χαμηλή τιμή, ποιότητα, ανθεκτικό
Αποστολή Ερώτησης
Πληροφορίες επαφής
  • Διεύθυνση

    Αριθ. 27, Yangsha Road, Huilong Town, Qidong City, επαρχία Jiangsu, Κίνα

  • ΗΛΕΚΤΡΟΝΙΚΗ ΔΙΕΥΘΥΝΣΗ

    [email protected]

Για ερωτήσεις σχετικά με υδραυλικές βαλβίδες, ηλεκτρομαγνητικές βαλβίδες κατεύθυνσης, αναλογικές βαλβίδες ή τιμοκατάλογο, αφήστε μας το email σας και θα επικοινωνήσουμε εντός 24 ωρών.
X
We use cookies to offer you a better browsing experience, analyze site traffic and personalize content. By using this site, you agree to our use of cookies. Privacy Policy
Reject Accept