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Thanks for your replies. We have considered using the steam coil pressed against the sulphur blocks. However, there are a few disadvantage for this option. 1, our sulphur block is about 100 feet. Using the steam coil pressing against it needs to be step by step. 2, In the winter, the weather is...

What are the rules or guidelines to select hydrotest or service test for a new piping? Thanks in advance.

what does GRP mean? I think you are right. You can use one bigger size piping as a main instead of three small branches.

Please refer to ANSI/ISA-75.01.01-2002. I think that you should find answer in this standard. If you don't know the flow coefficient for the ventri, you can find the coefficient in Crane 410 according to the configuration of the ventri. The pressure recovery coefficient for ventri is normally...

For LPG transfer system, the cooler the liquid temperature and the lower pressure drop before the booster pumps, the higher NPSH available for the booster pumps. I don't see any reasons you need to increase the pressure drop through the pipeline.

hesanchez, 1, first depending on the pressure rating of the vessels. Let's assume that the vessels have the same pressure rating. 2, depending on the locations of the block valve(s). If there is a block valve located downstream of the well separator, you have to size the PSVs at the piping and...

With the operating pressure of 750 psig (93% of set pressure), you cannot lower the set pressure without causing the PSV leaking. There are two scenarios: 1, you take out the PSV with lower pressure setting, resulting in relief pressure higher than MAWP which may be OK with ASME 31.3 exemption...

It's not OK. You have to have other equipment to ensure that the pressure is not over the MAWP

If you can give a drawing to show your system configuration, we may help you to define your problem. The relief capacity is a code requirement. We don't want to guess or mislead you

First the plant design must meet the regulation and safe operation requirements. To optimize the design, normally you will depend on the cost and benefit ratio according to your company rule to add/cut equipment

The question is not clear. If you want to calculate the air required to burn natural gas, you can use the method you used to calculate burning of H2S. If you want to size a burner, you need to define the duty required for the burner and contact with burner vendors

theoretically, it is correct.

Currently we have sulfur blocks stacked on plant site. We are planning to built a permanent sulfur melting plant. The sulfur came from Claus process and approximately contained 10 ppm H2S before the block was formed. The plant capacity is about 1000T/d. the melted sulfur will be trucked out for...

Thanks fellows for your input. The project team decided to install a pump house anyway. Thanks again, Yuze

I don't thinks that there is a requirement for minimum space allowable. The spacing between these elements is based on space available and easy for maintenance.

We try to install a new barge on a pond with two vertical pumps to pump water to a settling pit. The two pumps will be operated in parallel. The new barge will be installed with a pump house for the two new pumps. The water inside the pond is collected from catch basins with in the plant sites...

I appreciate all your response. Yuze

How does the dry coupling works? Is there no any leakage when the dry coupling is disconnected? Thanks, Yuze

Anyone has experience with Blackmer Sliding Vane Pump on low NPSH service? How reliable is the pump? What problems have you experienced? Thanks, Yuze

Thanks Pumpking & Micalbrch! Could you recommend some of the pumps used on ammonia survices? Yuze