Durable Pilot-Operated Relief Valves to Prevent Cavitation Issues

• Customization: Available
• Function: Balance, Pressure Regulating, Reversing, Flow Control, Widely Used in Chemical, Mechanical, Energy and Ot
• Installation: Tubular
• Model NO.: XDYF20-02 relief valves
• Drive: Hydraulic
• Type: Directly Operated Type
• Rated Pressure: 250bar
• Temperature Range: -20~+100ºC
• Rated Flow: 150L/Min
• Internal Leakage: 2drops/Min
• Transport Package: Carton
• Specification: 0.5KG
• Trademark: ERMA
• Origin: China
• HS Code: 8481400000
• Production Capacity: 50000pieces/Year
• Package Size: 30.00cm * 25.00cm * 20.00cm
• Package Gross Weight: 20.000kg

Product Description

Jiangsu Erma Hydraulic Components Co., Ltd.

Jiangsu Erma Hydraulics stands as a beacon of expertise in the production of threaded cartridge valves and precision spare parts, boasting over two decades of unparalleled production and R&D experience. With an impressive arsenal of over 200 advanced production and processing machines, including state-of-the-art equipment from industry giants such as American Hardinge, Swiss Schaublin, Japanese STAR, Citizen, Korean Doosan, Sunnen Honing, and Japanese Mitutoyo, we ensure precision at every step. Our facility also houses more than 50 specialized measuring and testing apparatuses, enabling us to achieve an annual output exceeding one million hydraulic components. Our diverse product lineup includes safety valves, overload valves, relief valves, balance valves, logic valves, solenoid valves, one-way valves, throttle valves, and pressure reducing valves, catering to multi-way valves, gear pumps, steering gears, cylinders, and comprehensive hydraulic systems.

Specification

DESCRIPTION
When the pressure at"P"reaches the valve setting,the pilot spool starts to open ,Next the main spool opening because of the pressure drop between inside and outside of main spool, Realize overflow from P to T.This type of valve generally has high opening and closing rate ,very low internal leakage, Suitable for the hydraulic system of high pressure and large flow.

Specifications

1.Rated pressure:180bar

2.Rated flow:60L/min

3.Cracking Rate:≥90%

4.Closing Rate:≥85%

5.Oil Supplement Cracking Pressure:0.66 bar

6.Internal Leakage:≤2ml/min at 135bar

7.Cleaning code:20/18/15(NAS9)

8.Temperature range:-20~+100℃

9.Pressure change per turn:235bar

10.Installation Torque:40~45Nm

11.Nut Tightening Torque:18~23Nm

right elevation

left elevation

front elevation

Technical Specifications

(Custom configurations available upon request.)

Model	XDYF20-02 Relief Valves
Rated pressure	180bar
Rated flow	60L/min
Cracking Rate	≥90%
Closing Rate	≥85%
Oil Supplement Cracking Pressure	0.66 bar
Internal Leakage	≤2ml/min at 135bar
Cleaning code	20/18/15(NAS9)
Temperature range	-20~+100℃
Pressure change per turn	235bar
Installation Torque	40~45Nm
Nut Tightening Torque	18~23Nm

Other product data

Additional references for this product are available. Our engineering team is poised to deliver bespoke designs tailored to meet specific project demands.

SYMBOL

CAVITY

PERFORMANCE DETAILS

After Sales Service

Standard Warranty: 12 months or 2,000 operating hours, whichever occurs first.
Special requirements: We offer expert customization and development services for our products.
Training: We provide comprehensive on-site or remote operation and maintenance training.

Company Profile

Jiangsu Erma Hydraulic Components Co., Ltd.

Founded in 1999, Jiangsu Erma Hydraulic Components Co., Ltd. is nestled in the picturesque and strategically located Xingang Park, National Economic and Technological Development Zone, Jingjiang City, Jiangsu Province. Our expansive facility spans 14,000 square meters and employs over 130 dedicated professionals, more than 50 of whom hold college degrees or higher qualifications.

Why Choose Us?

Other Products

OEM/ODM capabilities
Competitive pricing with attractive bulk discounts
Prompt shipping and efficient customs clearance support
Comprehensive turnkey project solutions

Directional control valve
Pressure control valve
Flow control valve
Solenoid valve
Plate type integrated valve

FAQ

Q: What's the lead time for orders?
A: For our standard models, you can expect shipping within 30 to 45 days. For those seeking customized units, the timeline extends to 40 to 60 days, contingent upon the specific requirements of your order.

Q: Can we customize products according to the actual situation?
A: Absolutely! We fully support product customization to meet your specific needs and requirements.

Q: What documents do you provide for export?
A: We provide a comprehensive export documentation package, including the Commercial Invoice, Packing List, Bill of Lading, COC, and more.

Q: How do I place an order?
A: To place an order, simply reach out to us via email or phone to request a quote. Once you receive the quote, confirm your order with a Purchase Order (PO).