Vee Wire Scallops for Radial Flow Internals

Our Vee wire scallops can help achieve maximum efficiency in radial flow internals.

The gas-solid radial reactor has a gas distribution device and a gas collection device. The space between these two devices is filled with catalysts, creating a catalyst bed. Scallops, which are flat tubular devices evenly distributed along the vessel's walls, are integral components of this system.

Vee Wire Scallops Description

Other Name: wedge wire scallops/Johnson scallops

Structure: wedge wire/vee wire

Purpose: Collect or distribute flow. It serves as a branch channel or collecting channel for gas.

Application: Catalytic Reforming, Ammonia Synthesis, Gas Treatment, Platforming, Styrene Production

Vee Wire Scallops VS Perforated Scallops

There are two types of scallops: Vee wire scallops and perforated scallops. The difference:

▪ Vee Wire Scallops Features and Benefits

1. Vee-Wire scallop arrangement has a much higher total open area than a single large outer basket or perforated sheet scallops of the same size.

2. The opening area is large, the pressure drop is reduced, and the process efficiency is improved.

3. Slots can be as narrow as 250 μm to retain small-size catalysts. And can prevent catalyst leakage.

4. Special V-shaped wire structure, not easy to block and easy to clean.

▪ Perforated Scallops

The perforated scallops have the benefit of a lower price than Vee wire scallops. But in real applications, wedge wire scallop performs better, so we recommend using it. 

In the typical configuration of a radial flow reactor, the reaction gas flows radially on the catalytic bed through the slot of the wedge wire screen scallop tube around the reactor wall.

When designing Vee wire scallops, we usually consider the following specifications and parameters:

1. Working and designing pressure and temperature

2. Flow parameters

3. Physical characteristics of the working environment

4. Pressure drop

5. Dimensions of the reactor and top hatch

Contact us anytime to customize Vee wire scallops to fit your radial flow interior system.

Mobile: +86 157 3217 7595

E-mail: sales@uboscreen.com

WeChat: +86 15732177595

Skype: +86 13653285589

WhatsApp: 8613653285589

Other Tower Internals Related Supply

Inner Pipe - Wedge Wire Filter

Catalyst Bed Support Grid