Sand-vik DD/DL accumulator gas valve80759069

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Price： 633
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Safety Features	Emergency Stop, Overload Protection, Fire Suppression
Payment Terms	T/T
Supply Ability	9999
Bucket	2.2 cubic meter
Width	37--88mm
Delivery Time	15days
Battery Life	: >500 cycle time
Power Source	Diesel/Electric
Packaging Details	Original packaging
Power Frequency	50HZ-60HZ
Tar Adhesive Weight	20t
Adhesive Weight	8
Shape	U Channel
Engine Model	490
Type	Heavy Machinery
Noise Db	73
Bucket Cap	0.3m3
Min Application Section	17 m3
Thickness	4.5-9.5mm
Model Number	80759069
Place of Origin	CHINA
Brand Name	Sand-vik

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Product Details
Company Details

Product Specification


Safety Features	Emergency Stop, Overload Protection, Fire Suppression	Payment Terms	T/T
Supply Ability	9999	Bucket	2.2 cubic meter
Width	37--88mm	Delivery Time	15days
Battery Life	: >500 cycle time	Power Source	Diesel/Electric
Packaging Details	Original packaging	Power Frequency	50HZ-60HZ
Tar Adhesive Weight	20t	Adhesive Weight	8
Shape	U Channel	Engine Model	490
Type	Heavy Machinery	Noise Db	73
Bucket Cap	0.3m3	Min Application Section	17 m3
Thickness	4.5-9.5mm	Model Number	80759069
Place of Origin	CHINA	Brand Name	Sand-vik

Sand-vik 80759069 Accumulator Gas Charging Valve

Part No. 80759069 is an original nitrogen charging valve (also called gas filling valve / pressure retaining valve) for Sand-vik DD/DL series underground development drill rigs and longhole drill rigs. It is used for nitrogen filling, pressure detection and pressure sealing of hydraulic accumulators. This original part features a compact threaded structure with a yellow protective cap.

1. Basic Information

Part Number: 80759069 (Full code: 807 590 69)
Brand: Sand-vik
Type: Accumulator Gas Charging Valve
Applicable Models:
- DD Series: DD2100, DD2710, DD3110, DD422iE and other underground development drill rigs
- DL Series: DL2100, DL2710 and other longhole drill rigs
- Other Equipment: Accumulator circuits of TB40, TB60 and RD520 hydraulic rock drills
Function: Serves as the exclusive port for nitrogen charging and pressure testing of accumulator gas chamber, and maintains pressure by sealing.

2. Core Functions

Nitrogen filling: Connect with nitrogen cylinder and charging tools to fill high-pressure nitrogen into the accumulator. Standard pre-charge pressure: 80–100 bar.
Pressure detection: Connect external pressure gauge to monitor nitrogen pressure for routine maintenance and calibration.
Pressure sealing: Built-in one-way sealing structure automatically closes after charging to prevent nitrogen leakage and keep stable system pressure.
Overload protection: Releases pressure slightly under abnormal overpressure to protect accumulator shell and hydraulic components.

3. Key Specifications

Max Working Pressure: 350 bar, suitable for high-pressure hydraulic systems
Applicable Gas: High-purity nitrogen (N₂)
Thread Type: Standard metric external thread for direct installation on accumulator
Valve Body Material: High-strength carbon steel with anti-rust treatment
Seal Material: FKM fluoroelastomer, featuring high pressure resistance, oil resistance and high temperature resistance
Operating Temperature: -30℃ ~ +120℃
Weight: Approximately 0.056 kg
Appearance: Silver metal valve body with yellow plastic protective cap for anti-collision and dust prevention

4. Appearance & Structure

Overall structure: Compact cylindrical threaded valve. One end with external thread for mounting on accumulator, and the other end is gas charging port fitted with yellow protective cap.
Internal structure: Composed of one-way spool, spring and sealing assembly. The spool is pushed open during charging and closes automatically to achieve sealing.
Original marking: Part number 80759069 and Sand-vik logo engraved on valve body. The protective cap is designed to prevent loss.

5. Replacement & Compatibility

Genuine part: 80759069 is the only standard model with no alternative upgraded parts.
Interchangeability: Not compatible with similar valves of Epiroc and Atlas Copco due to different port sizes and thread specifications.
Installation Position: Gas port on the top of hydraulic accumulator, applied for hydraulic stations and rock drill accumulator assemblies of DD/DL drill rigs.

6. Common Faults & Maintenance

Air leakage / Pressure loss: Caused by aging seals, worn spool or impurities entering due to missing protective cap. Solution: Replace the whole valve and check the protective cap regularly.
Failed gas charging: Caused by stuck spool or damaged thread. Solution: Clean the port or replace with a new valve.
Maintenance Schedule: Check gas pressure every 500 working hours; replace the charging valve every 1000 working hours to avoid leakage caused by component aging.

Company Details

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Business Type:

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Year Established:

2023 
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Total Annual:

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Employee Number:

10~49 
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Ecer Certification：

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Chengzai Machinery mainly operates products suitable for imported brands of road machinery, mining equipment, construction machinery, generator sets, ship power systems, etc.: drilling rig spare parts, air compressor spare parts, tunneling machine spare parts, excavator-loader spare parts, engine sp... Chengzai Machinery mainly operates products suitable for imported brands of road machinery, mining equipment, construction machinery, generator sets, ship power systems, etc.: drilling rig spare parts, air compressor spare parts, tunneling machine spare parts, excavator-loader spare parts, engine sp...

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