Steam Operating Controls, Traps | Hubbell STH instruction

STEAM OPERATING CONTROLS

The steam operating controls are factory selected, sized, piped, and tested to ensure reliable operation. Steam controls can be shipped loose, upon request, for in the field installation by others. All steam components are factory plumbed with schedule 40 black iron pipe and ready for steam and condensate connections. A cast iron ‘Y’ strainer with 20 mesh screen protects the steam controls and coil from dirt and debris in the steam supply.

Traps

Two traps should be utilized in the immediate steam piping system of the water heater. The first trap in the system is a drip trap that is designed to collect condensate from the main steam line before entering the steam regulator. Additionally, a main condensate trap should be located in the condensate line after the steam coil. This trap ensures that the steam remains in the coil and releases its energy before exiting the coil and traveling down the condensate line. There are various types of traps available. The following may be included in your water heater package:

1.Drip Trap

a.Thermostatic (Standard)

b.Cast Iron Float and Thermostatic type

c.Cast Steel Float and Thermostatic type

2.Main Trap

a.Cast Iron Float and Thermostatic type (Standard)

b.Cast Steel Float and Thermostatic type

c.Bucket

Steam Control Valves

1.Pilot Operated (Standard) – A high quality cast iron pilot operated steam control valve comes with the standard unit. It is the most widely used type of valve for water heating applications. In this type of valve, a temperature pilot device utilizes steam to operate the main valve. No external power source is required other than steam. This highly dependable temperature control system is suitable for most commercial and industrial applications.

2.Self Operating – This valve design includes a bulb and capillary assembly charged with a thermally responsive vapor. The expansion / contraction of the vapor acts upon the valve bellows in order to control the flow of steam through the valve. No external power is required for operation.

3.Pneumatically Operated – In this configuration the building air supply feeds a factory installed temperature controller that operates the steam control valve. The temperature controller sends a precise air signal to the steam control valve which adjusts the flow of steam into the heating coil. The temperature controller is fully adjustable from 50° - 250 ° F and requires 20 psi air at a maximum consumption of 0.5 SCFM.

4.Electronically Operated – This control valve is similar to a pneumatically operated system, except in this case the temperature controller is a sophisticated digital display electronic device which outputs a 4-20 ma signal to a compact motor mounted on the steam control valve in order to proportionally control the flow of steam to the heating coil. The temperature controller displays set point as well as actual water temperature and is available with an RS485 communications port for remote control.

STH, ST specifications

Hubbell ST and STH connectors are pivotal components in the realm of power and data transmission. Known for their durability and reliability, these connectors are widely implemented in both commercial and industrial applications. Their design caters to the need for efficient connectivity while ensuring safety and performance.

The Hubbell ST connector is engineered with a robust, user-friendly configuration that allows for quick and simple installations. It features a bayonet-style coupling mechanism, which ensures that the connection is secure and resistant to accidental disconnection. This design is especially beneficial in high-vibration environments, making it ideal for use in various industries, including telecommunications, aerospace, and manufacturing.

On the other hand, the STH connector is specifically designed for high-temperature applications and environments where harsh conditions prevail. It is made from high-temperature materials that can withstand significant thermal stress, thus ensuring consistent performance even in challenging conditions. This feature is particularly crucial for industries such as oil and gas, renewable energy, and any sector that relies on high-performance machinery.

Both ST and STH connectors utilize advanced technologies to enhance their performance. They incorporate precision-engineered contact surfaces that allow for optimal electrical flow, while minimizing signal loss. This is especially important in data-intensive industries where maintaining signal integrity is critical. Additionally, these connectors feature insulation systems that provide protection against moisture, dust, and other environmental factors, significantly prolonging their lifespan.

One of the standout characteristics of Hubbell connectors is their versatility. They come in various configurations and sizes, allowing them to cater to a wide range of applications, from telecommunications to industrial machinery. The connectors can handle different voltage levels and current ratings, thus accommodating the requirements of diverse operational setups.

In conclusion, Hubbell ST and STH connectors represent reliability and functionality in connectivity solutions. Their robust construction, advanced technologies, and adaptability make them a top choice for professionals looking for efficient and dependable connectors in demanding environments. Whether it’s ensuring seamless data transmission or providing power to critical systems, Hubbell connectors stand out as a preferred solution across many industries.