WCB Cast Steel Globe Valve Spiral Gasket ENP CF8M CF3M CF3 CF8 B148-C9580

Product Details:

Place of Origin:	中国
Brand Name:	GOLD TOP
Certification:	BS1873

Payment & Shipping Terms:

Minimum Order Quantity:	1 pcs
Price:	Negotiation
Packaging Details:	Plywood Case
Delivery Time:	30 days
Supply Ability:	100+pcs+30 days

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Detailed Product Description

Size:	2''-48''	End Connection:	Flanged / Butt Weld
Calss:	150# ~ 2500#	Material:	Carbon / Stainless / Duplex Steel
Design Standard:	BS1873	Disc:	Plug- Shaped Disc
High Light:	flanged globe valve , rising stem globe valve

CF8M CF3M CF3 CF8 B148-C9580 WCB BS1873 Globe valve Spiral Gasket Cast Steel ENP

Globe Valve

Feature

Globe valve is a type of valve with spherical body shapeenclosing the valve seat and a movable valve disc.
It is available in 2” to 48” size with pressure ratings of 150#, 300#, 600#, 800#, 900#, 1500#, and 2500#. The end connections for globe valve also come in varieties which are Raised Faced Flanged, Socket Weld, NPT/Thread, and Butt Weld.
Globe valves are commonly used as an on or off valve, but they also may be used for throttling systems.
The gradual change in spacing between the disk and seat ring gives the globe valve good throttling ability.

Operation

Globe valves have a disk which can completely open or completely close the flow path.
The annular space between the disc and seat ring gradually changes to allow fluid flow through the valve.
For low temperature applications, globe valves are ordinarily installed so that pressure is under the disc. This promotes easy operation, helps protect the packing, and eliminates a certain amount of erosive action to the seat and disc faces.
For high temperature steam service, globe valves are installed so that pressure is above the disc. Otherwise, the stem will contract upon cooling and tend to lift the disc off the seat.

Types of Globe Valves

Tee Pattern globe valves have the lowest coefficient of flow and higher pressure drop. They are used in severe throttling services, such as in bypass lines around a control valve. Tee-pattern globe valves may also be used in applications where pressure drop is not a concern and throttling is required. Refer to Fig. C.

Wye Pattern globe valves, among globe valves, offer the least resistance to flow. They can be cracked open for long periods without severe erosion. They are extensively used for throttling during seasonal or startup operations. They can be rod through to remove debris when used in drain lines that are normally closed. Refer to Fig. A.

Angle Pattern globe valves turns the flow direction by 90 degrees without the use of an elbow and one extra weld. They have a slightly lower coefficient of flow than wye-pattern globe valves. They are used in applications that have periods of pulsating flow because of their capability to handle the slugging effect of this type of flow. Refer to Fig. B.

Main parts and materials

Parts Name	Materials
Valve Body,Bonnet	Carbon steel+stainless steel/hard alloy
Disc	Carbon steel+stainless steel/hard alloy
stem	Stainless steel
Yoke nut	brass

Function and specification

Type	Nominal pressure(Mpa)	testing pressure		suitable temperature (℃)	suitable medium
Type	Nominal pressure(Mpa)	strength(water)(mpa)	enclose(water)(mpa)	suitable temperature (℃)	suitable medium
J41/941Y H-16C SJ41H-16C	1.6	2.4	1.8	≤425	Water.vapour.oil
J41/941Y H-25 SJ41H-25	2.5	3.8	2.8
J41/941Y H-40 SJ41H-40	4.0	6.15	4.51
J41/941Y H-64SJ41H-64	6.4	9.75	7.15
J41/941Y H-100 SJ41H-100	10.0	14.4	10.56

Tag:

rising stem globe valve,

bolted bonnet globe valve,

flanged globe valve

Contact Details

Wenzhou Goldtop Valve Co.LTD

Contact Person: sales

Tel: +8613758447235

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