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Pressure relief valve, pilot operated, types DB/DBW. .. L5X
Type DB pressure relief valves
The pressure of channel A acts on the main spool (3), meanwhile, pressure is applied via control line (6) and (7) with orifice (4) and (5) on the spring loaded side of the main spool (3) and on the ball (8) in the pilot operated valve (2). If the pressure in channel A rises excess the setting value at the spring (9), the ball (8) opens against the spring (9). As for the internal control forms, signal is given by control oil (10) and (6) supplied by channel A. The oil from the spring loaded side of the main spool (3), via control line (7), orifice (11), and ball (8), then flows into spring chamber (12). About internal drain - type DB···L5X···Y, oil flows via control line (14) into the tank. In virtue of the orifice (4) and (5), the pressure drop arises at the main spool (3), and the connection from port A to port B is open while the setting operation pressure maintain invariable. The pressure relief valve may unload or shift the different pressure (second rated pressure value) in virtue of external control port X (15).
Pressure relief valve type DBW
The basis function of pressure relief valve type DBW is the same with pressure relief valve type DB, the difference is that valve type DBW operates unloading via a built-on directional valve (16).
2. Product Photos
3. Company Profile
NNINGBO POWER HYDRAULIC MOTOR CO.,LTD is a wel-trusted manufacturer in hydraulic industy.
The company have achieved IS09001:2015 quality system, relying on strong technology development and production capacity,our annual output 600 thousand pieces. We produce all kinds of hydraulic valve, mainly include Rexroth and Yuken series of hydraulic valve products. Our products are widely used in mining, engineering, construction, plastics, chemicals, machine tools and so on. Our goal is to continue to deliver cost-effective products and more improved electro-hydraulic technology solutions.
We also aim to help our customer to attain competitive advantage. It is our business to create more solutions, not just to satisfy the needs of our customers but also to help them progress in the industry.
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5. Factory
6. FAQ
Q1: Are you trading company or manufacturer ?
A: We are factory.
Q2: How long is your delivery time?
A: Generally it is 3-5 days if the goods are in stock, or it is 20-30 days if the goods are not in stock, it is according to quantity.
Q3: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q4: What is your terms of payment ?
A: Payment<=5000USD, 100% in advance. Payment>=5000USD, 30% T/T in advance ,balance before shippment. If you have another question, pls feel free to contact us.
