The HYDAC family of dependable high pressure ball valves provides full, unrestricted flow and positive shut-off of fluids and gases under extreme service conditions. Models are available to accommodate system pressures up to 7,250 PSI. Since a variety of materials are available, HYDAC valves can be used with various fluids and gases including petroleum based oils and some water glycols.
The design of HYDAC ball valves is based on the “floating ball” principle which allows the ball to turn freely between the ball seals. A positive seal is attained by fluid pressure acting on the upstream surface of the ball and producing a constant uniform contact between the downstream ball seal and the ball. The ball is operated by a sealed spindle with a projecting square end to which the control handle or optional actuator is attached. Ball valves are intended to be used as on/off flow control devices and are not to be used to throttle fluid flow. The valves should always be either fully open or closed.
Features
Available Options
HYDAC can furnish ball valves with special options including:
Product Improvements
Zinc Plating: Carbon Steel Valves now come with Zinc Plating as the standard surface finish. Corrosion protection is improved.
Pressure Rating: Standard Carbon Steel Valves now rated up to 6000psi see specific product pages for details.
Engineering Data
Housing | |
Block Type (KHB) | Carbon Steel (standard) 14˚F Min temp |
Forged Type (KHM) | Forged Steel (standard) 14˚F Min temp |
Stainless Steel (optional) -40˚F Min temp | |
Coatings | Standard Models Phosphate Coated (Others available on Request) |
Ball | |
Ball Chrome Plated Steel (standard) | |
Stainless Steel (optional) | |
Spindle | |
Zinc Plated Steel (standard) | |
Stainless Steel (optional) | |
Handles | |
11X | Straight Aluminum, Red Anodized |
12X | Offset Aluminum, Red Anodized |
16X | Offset Steel, Galvanized |
Ball Seal | |
Polyacetal (POM) Standard for Hydraulic Oils, Water Glycol | Maximum Pressure: to 7250 psi (500 bar) |
Temperature Range: -22° to 212°F (-30° to 100°C) | |
PTFE For Corrosive Media | Maximum Pressure: to 1500 psi (100 bar) |
Temperature Range: -328° to 212°F (-200° to 100°C) | |
Temperature to 392°F (200°C) at reduced Pressure (see chart below for pressure-temperature profile) | |
NBR For Gaseous Media | Maximum Pressure: to 1500 psi (100 bar) |
Temperature Range: -13° to 212°F (-25° to 100°C) (see chart below for pressure-temperature profile) | |
PEEK High Temperature Seal | Maximum Pressure: to 7250 psi (500 bar) |
Temperature Range: -238° to 212°F (-150° to 100°C) | |
Better high temperature profile than PTFE Temperature to 482°F (250°C) at reduced Pressure | |
Spindle Seal and O-rings | |
Fluorocarbon (FPM) Standard for hydraulic oils and many acids | Maximum Pressure: to 7250 psi (500 bar) |
Temperature Range: -4° to 392°F (-20° to 200°C) | |
NBR Seal for hydraulic oils, lubricants, greases | Maximum Pressure: to 7250 psi (500 bar) |
Temperature Range: -13° to 212°F (-25° to 100°C) | |
PTFE for corrosive media and bases | Maximum Pressure: to 1500 psi (100 bar) |
Temperature Range: -328° to 212°F (-200° to 100°C) | |
Temperature to 392°F (200°C) at reduced pressure | |
EPR Ethylene Propylene Rubber for some phosphate esters | Maximum Pressure: to 7250 psi (500 bar) |
Temperature Range: -58° to 300°F (-50° to 150°C) | |
Special Seals | |
Other materials are available for special applications. Consult Robeck Fluid Power for your specific application. |