Non standard switching valve safety valve

NegotiableUpdate on 02/26

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Nature of the Manufacturer: Producers

Product Category

Place of Origin

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Overview

Non standard switching valve safety valve model QHF, flange connection, also known as safety valve quick switching device (can be customized with dual control and chain), mainly used in chemical/steam pipelines, compact structure, reasonable design, can achieve functions without stopping the machine and can replace the safety valve.

Product Details

Product Introduction

Non standard switching valve safety valveAlso known as a quick switching device for safety valves, it consists of a switching valve and a safety valve. The safety valve can be replaced or repaired while the device is still running.

非标切换阀安全阀

Basic technical parameters of non-standard switching valve safety valve:

Specification: 1 '~12'

Pressure level: Class150~600, PN16~PN100

Applicable media: gas, liquid, steam

Temperature range: -196 ° C~570 ° C

Performance characteristics:

1. Three way flow design, with two identical safety valves installed at one workstation, one for online overpressure protection and the other as a maintenance backup.

2. Quick switching without the need for device parking, providing continuous overpressure protection to avoid expensive losses caused by emergency parking maintenance.

3. Low flow resistance ensures that the safety valve has sufficient discharge capacity.

4. The reversing system is safe, easy, and fast to operate.

5. Below each safety valve, there is a relief valve installed to safely and effectively release the medium before disassembling the safety valve.

6. When the weight is high (≥ 600 lb), a balance valve is installed in the quick switching device, making it easy to operate.

7. Wide applicable temperature range (from low temperature to high temperature).

8. Reliable sealing, maintaining good sealing even after multiple actions.

Valve installation and maintenance instructions

1. Before installation, carefully check whether the valve specifications and models match the usage requirements.

2. Check whether the packing is tightly compressed, ensuring the sealing of the packing, but not hindering the rotation or lifting of the valve stem.

3. Valves should not be stored in open areas, but should be stored in a dry and ventilated warehouse. Do not collide or knock during transportation and installation.

4. During installation, it is necessary to check and remove dust and debris from the valve chamber and pipeline to avoid affecting the sealing performance of the valve.

5. During operation, the threaded part of the valve stem should maintain good lubrication performance

Note: For valves that have been stored for a long time and have been installed for 3 months or more, the valve should be pressurized and tested first, and then the valve stem and packing position should be checked for water leakage before installation and use