Armatury S33.J Gate Valve

THROUGH-CONDUIT GATE VALVES
TYPE S33.J
Application
Through-conduit gate valves are isolating valves designed for full closing of the working media flow. They can be used
for temperatures up to 200°C. If the gate valves are used for regulating or throttling purposes, the manufacturer does not
guarantee the tightness. The gate valves are full-bore piggable valves with a flow resistance coefficient equal to that of the
piping. Therefore they are suitable especially for long-distance pipeline systems.
Working medium
ater w non-corrosive liquids petroleum and petroleum products gas The working medium shall not contain any mechanical impurities.
Technical description
The gate valves are designed in compliance with API 6D.
Cast-welded design - the gate valve body is made of castings and wrought semi-finished products.
Welded design - the gate valve body is made of wrought semifinished products.
The body parts and the bonnet are connected by a flanged joint.
The slide is entered from the top (TOP ENTRY) and the obturator can be situated in its lower part or its upper part as required by
the customer. The design of seats incorporates a primary metalto-metal sealing and a secondary soft sealing ring in the seat.
The design of seats enable to depressurize the valve body cavity (DBB) and to relieve the increased pressure from the body cavity
to the piping automatically. The stem is sealed by self-sealing
PTFE lip seals or O-rings.
Operation
Connection to the piping
anual bevel gear m electric actuator pneumatic actuator bare stem ready for connection of an actuator
The standard connecting dimensions for connection of a manual gear operator or an electric actuator are according to ISO 5210.
elded ends - according to ASME B16.25 w flanged ends - according to ASME B16.5, ASME B16.47 (by
agreement) End-to-end dimensions according to API Spec 6D.
Installation
The gate valves shall be installed into horizontal piping in vertical position with the actuator on the top only.
Accessories
rain valve or plug d vent valve or plug by-pass valve sealant injection to seats and stem
specific requirements If accessories are not specified by the customer, the scope of its
delivery meets the requirements of API Spec 6D.
Advantages
v ery low flow resistance coefficient special design of seats - guarantee of 100% tightness
piggability no danger of entrapment of liquid in the body cavity seating surfaces of the seats in permanent contact with the
gate TOP ENTRY design - possibility of refurbishment without removal from the piping system
stem cover with position indicator
Testing
Pressure tests are carried out with water in compliance with API Spec 6D or API 598. Special tests as required by the customer.
Production range Type Cast-welded Welded
Class 300 400 600 150 300
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