OS&Y BB Full Port 150# ~ 2500# API 600 / BS 1414 / ISO 10434
Design complies with the Api 600, Api 602, API 603, BS 1414.
Face to Facet dimension: ASME B16.10 , BS 2080 and ISO 5752.
Flanged End: ASME B16.5 , 26” and larger sizes according to ASME
Series A and Series B.
Butt-weld End: ASME B16.25
Inspection and Test: API 598 , BS EN 12266 , ISO 5208
Casting Steel Material
Visual check for cast steel material includes: surface quality,
dimension, chemical properties, mechanical performance,
non-distructive testing to ensure that the comprehensive
performance of raw materials
comply with the relevant ASTM, BS , EN , JIS standards.
The design provides the whole structure of low flow resistence
enables the body stiffness and strenght to bear the nominal piping
pressure and stress loading.,
the valve body wall thickness design complies with the API 600 with
sufficient margin corrosion resistance for the medium.
Bonnet can be designed with a variety of seal structure of body
connection to meet the needs of different operating conditions,
the structure can be equipped to connect with jacketed, flat,
spiral or metal ring gasket,
and self pressure-seal valve bonnet for class 900/1500/2500.
Seat structure can b e designed as per user requirements as a whole
alloy steel materials pressed-in sealing structure,welding sealing
or screw connection in assembly. The austenitic stainless steel
body material can be provided with integral seat.
The wedge structure design can be solid, flexible or parallel dual
plates and has enough strenght and stiffness to ensure the valve
Seat and other materials
The choice of materials for the seat and other seal material can be
as per API 600 stadards or users design and manufacturing
Technical parameters and characteristics:
Wedge resilient gate valve
-196℃～593℃(the range of service temperature may vary for different
Main material: A216 WCB,WCC; A217 WC6,WC9,C5,C12,C12A,CA15; A351
CF8,CF8M,CF3,CF3M,CF8C,CN3MN,CK3MCUN,CN7M; A352 LCB,LCC; A494
CW-6MC,CU5MCuC,M35-1; A890 4A(CD3MN),5A(CE3MN),6A(CD3MWCuN); ASME B
148 C95800,C95500, etc.
API 600,ASME B16.34,GB 12234,GB 12224
ASME B16.5,ASME B16.25,GB 9113,GB 12224
API 598,ISO 5208,JB/T9092,GB/T13927
non-elevating hand wheel, bevel gear, motor drive unit, pneumatic
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 1
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 2
SS+ graphite or metallic seal or pressure self-sealing is adopted
between valve body and bonnet for reliable sealing
Other remarks 3
Rising stem structure, making the valve switch position be clear at
Other remarks 4
The valve stem thread will not come into contact with the medium,
so the corrosion of medium to the thread is reduced.
Other remarks 5
Small switching moment, reliable sealing
Other remarks 6
The gate valve is of wedge and resilient type that can compensate
the slight deformation, so the sealing performance is good.
Other remarks 7
Small flow resistance, high flow capacity and good flow
Other remarks 8
For small gate valves, the interchangeability can be ensured with
Other remarks 9
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.