valve Accessories

Where valves are installed under platforms, floors or inremote locations. HYUPJIN can provide stem extensions to provide convenient and safe operation of valves. Stem extensions can be adapted to valves to provide remote operation of valves.
Stem extensions can be free standing or supported. Stem extensions can be used in conjunction with floor stands and manual gear units. Floor stands can be furnished with manual or motor operated actuators.

Gearboxes

Main Valve Size	11/2" ~ 4"	5" ~ 8"	10" ~ 36"
By-Pass Size	1/2"	3/4"	1"

Valves can be furnished with all welded-on by-passes when specified. By-passes are equipped with a single O.S & Y. globe valve with a pressure-temperature rating and corrosion resistance equal to or exceeding that of the main valve.By-passes on valves 4" and larger are furnished to comply with MSS SP-45, Series A.

Extension Stems and Floor Stand

A by-pass is utilized to balance line pressure and to prevent a rapid rise in temperature in steam lines.
When the main valve is starting to be opened, the seat surface is exposed to severe forces of the flow media. With the pressure equalized by means of the By-pass, these forces are reduced and you can expect longer service life from the valve seats.
By-pass assemblies are available on Gate, Globe (both "T" & "Y" pattern) angle valves and check valves.
Please consult your HYUPJIN sales engineer for additional data.

By-Passes and Limit Switches

Chainwheels can be furnished complete with chainwheel and chain guide.
They are means of safe and convenient floor operation of valves in valves in overhead or inaccessible locations.

Chain Wheels

HJV can install actuators on valves to meet customer's needs to automate and provide remote control of the piping system. Actuators may be drivenby AIR Motor or Electric motor. We install the actuators specified by the customer to meet operations needs. The following information needs to be specified when ordering actuators.

Hydraulic or Pneumatic Actuators

HJV can install actuators on valves to meet customer's needs to automate and provide remote control of the piping system. Actuators may be drivenby AIR Motor or Electric motor. We install the actuators specified by the customer to meet operations needs. The following information needs to be specified when ordering actuators.

Motor Actuators

HJV valves can be furnished with any of these many valve operators. It is extremely important that the correct method of operations is selected and that all relevant details of the required device are stated when ordering the valve/operator unit

Operation by conventional handwheel or lever is not always suitable to perform the function of the Valve.
To gain mechanical advantage of to retard the closing and opening speed of operation a manual gear unit way be furnished.

Actuators Accessories