Cryogenic Valve Test Device - Ball Valve, Gate Valve, Globe Valve, Safety Valve

The cryogenic liquid ammonia and liquid nitrogen test equipment of our company was recently installed and commissioned. After the technical cooperation of the workshop staff of our factory and the technicians of the cryogenic valve test equipment manufacturers, the low-temperature valve test equipment of our factory was successfully installed and tested. Now it has been completed. Completion of tests and research on cryogenic globe valves, cryogenic butterfly valves and other related products. For Shanghai Xiandie Valve Co., Ltd. The increase and update of the equipment for our factory machining accuracy, making new low-temperature valve products and high-quality valve products is a qualitative improvement. It is also good news for our plant to expand the business of cryogenic valve products, so as to achieve the diversification of our plant products and to a new level. After one month's low temperature test, the relevant technical personnel of our company will continue to follow the test and provide cryogenic valve products for our factory: low temperature stop valve, low temperature gate valve, low temperature butterfly valve, low temperature ball valve, etc. For applicable media: LNG, ethylene, propylene , Liquid nitrogen, liquid ammonia and other medium pipelines on the cryogenic valve products.

After years of manufacturing, Shanghai Xiandie Valve Co., Ltd. has accumulated a wealth of experience, from design, process to manufacturing has become more mature, and has developed a series of low temperature valve products.

First, cryogenic valve product specifications and design parameters:

1. Pressure rating: PN1.0 1.6 2.5 4.0 6.4 (MPa)

2. Valve diameter: 15 ~ 1200 mm (1/2 ~ 48 ").

3. Link form: flanged, welded, threaded.

4. Valve material: LCB, LC3, CF8.

5. Working temperature: -46°C, -101°C, -196°C, -253°C

6. Applicable medium: liquefied natural gas, ethylene, propylene, liquid ammonia, liquid nitrogen and so on.

7. Drive mode: manual, bevel gear drive, electric.

Second, the cryogenic valve material:

1. Body and valve cover: LCB (-46°C), LC3 (-101°C), CF8 (304) (-196°C)

2. Ram: Stainless steel surfacing cobalt-based hard alloy

3. Seat: Stainless steel surfacing cobalt-based hard alloy

4. Stem: 0Cr18Ni9

Third, cryogenic valve test equipment:

1. Low temperature valve test device

2. Liquid nitrogen, liquid ammonia storage device

3. Low temperature test equipment processing tank

4. Cryogenic valve equipment test bench to ensure the performance of the valve under low temperature conditions

Fourth, low temperature valve test and cryogenic valve inspection:

The main components of the cryogenic valve are treated at low temperature and each batch is sampled for low temperature impact test to ensure that the valve does not crack during low temperature conditions and can withstand the impact of low temperature media.

The following tests were performed for each valve:

1. Normal temperature shell strength test;

2. Normal temperature and low pressure sealing test;

3. Normal temperature and low pressure sealing test;

4. Sealed airtight test at low temperature (when sealed);

5. Low-temperature gas seal test, etc., to ensure that the entire cryogenic valve meets the requirements of the standard;

6. Low-temperature treatment of the main components of the cryogenic valve and low-temperature impact test for each batch of samples to ensure that the valve is not brittle at low temperature conditions, can withstand the impact of low temperature media;

7. Low-temperature (cryogenic) valves are subjected to low-temperature treatment and impact test according to the corresponding material specifications

8. It is more powerful to engage in static electricity, and the on-resistance between the valve body and the valve stem or between the inner part and the valve body is less than 1 ohm.

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