API Forged steel low temperature gate valve, cryogenic valve with
SW ends
Bore: NPS½～NPS2,DN15～DN50
Rating: Class150～Class900
Material: Carbon Steel,Stainless Steel,Alloy Steel,Duplex Stainless
Steel
Operation: Manual,Gear Operated,Electric Operated,Pneumatic
Operated
Applicable: Oil,Chemical,Natural Gas,Petrochemical,Coal Chemical
and so on
Kelite is specialized in manufacturing Socket Welding Forged
Cryogenic Gate valve. Cryogenic Gate valve is used for fully
opening and closing usage but not for regulating or throttling
purpose by the movement of closure member gate whose moving
direction is vertical with flowing medium.
Socket welding Forged Cryogenic Gate valves are suitable for using
on various kinds of pipeline from Class150 To Class900 to cut off
or connect the flowing of medium. By using different material, the
valves could be suitable for medium such as water, steam, oil,
nitric acid, acetic acid, oxidizing substance, carbamide and etc.
Back seat structure is provided for all the socket welding forged
cryogenic gate valve to have a reliable back seat sealing when
valve is in full opening postion. Generally, a split back seat
structure is provided for cryogenic gate valve, while for stainless
steel cryogenic gate valve the back seat is manufactured directly
from the body or after welding some hard alloy onto the surface of
body.
Socket Welding Forged Cryogenic Gate Valve product features
Kelite Socket Welding Forged Cryogenic Gate valve has the features of Good sealing, reliable, safety and long life
span.
Socket welding Forged Cryogenic Gate valves developed by Kelite
have following good characteristics: good sealing performance,
reliable safety guarantee, long life span and etc.
Socket Welding Forged Cryogenic Gate valve standard
Design and manufacture standards:BS 6364, ISO 10434, GB/T 24925,
API 602
Face to face dimensions standards:ASME B 16.10, GB/T 12221
Connection ends standards:ASME B 16.11
Testing inspection standards:API 598, GB/T 13927, GB/T 26480,
JB/T9092, ISO 5208, BS6364
Technical parameters and characteristics:
| Product type | API Forged steel cryogenic gate valve, cryogenic valve |
| Product description | low temperature |
| Model | cryogenic gate valve |
| Nominal diameter | 1/2”～2” |
| Operating temperature | -196℃～300℃(the range of service temperature may vary for different
materials) |
| Operating pressure | 150-2500 CLASS |
| Material | Main material: LF2,304,304L ETC. |
| Design standard | BS 1873 ,BS 6364,ASME B16.34,GB 12235,GB 12224 |
| Structural length | ASME B16.10 |
| Connecting end | ASME B16.5,GB 9113 |
| Test standard | API 598,ISO 5208,JB/T9092,GB/T13927,BS 6364 |
| |
| Application fields | For application in fields such as electric power industry,
petroleum refining, petrochemical engineering, offshore oil, tap
water engineering in urban construction, chemical engineering, etc. |
| Other remarks | The extension dimensions of valve stem and bonnet may vary
according to different temperature ratings. |
| Other remarks 2 | As valves subject to a temperature ≤-101℃ shall be protected
against subzero deformation, the main parts are subzero treated. |
| Other remarks 3 | The sealing faces of valve seat and valve clack are build-up welded
with hard alloy to improve the erosion resistance and extend the
service life of valve. |
| Other remarks 4 | The friction between sealing faces is smaller during opening and
closing, facilitating a longer service life. |
| Other remarks 5 | The valve clack is of taper, needle, ball and parabola types, and
can be used to adjust the flow rate. |
| Other remarks 6 | SS+ graphite or metallic seal or pressure self-sealing is adopted
between valve body and bonnet for reliable sealing. |
| Other remarks 7 | Rising stem structure, making the valve switch position be clear at
a glance |
| Other remarks 8 | The valve stem thread will not come into contact with the medium,
so the corrosion of medium to the thread is reduced. |
| Other remarks 9 | Small switching moment, reliable sealing |
| Other remarks 10 | The valve clack can be machined into parabola, spherical, needle
shapes, etc. according to the requirement of customer. It can be
used for adjustment (rough adjustment) on pipeline. |
| Other remarks 11 | Short stroke is suitable for application at positions subject to
frequent opening. |
| Other remarks 12 | Y-shape stop valve – the streamline flow pass has a very high flow
coefficient, and can maximally reduce the pressure drop through the
system. |
| Other remarks 13 | Through improving the structural design and selecting reasonable
packing structure and qualified packing supplier, the valves can
meet the Class A sealing test requirements of ISO 15848 FE. |
