Archive for category: NEWS & EVENTS

You are here: Home / NEWS & EVENTS

Read The Latest Company News And Events Of Stv Valve Technology Group CO., LTD, You Will Stay Informed About Stv Valve Technology Group CO., LTD Export Information And Newly Released Products.

Stv Delivery Xylan Fluoropolymer Coated Stud Bolts and Nuts

/0 Comments/in , /by

Surface:PTFE FluoroCarbon  Xylan Coated

Whitford Quality Approved Coater Xylan 1424 Coated Stud Bolt, Xylan Coated Bolts, PTFE Fluorocarbon Coated A193 B7 Stud Bolt &A194 2H NUTS

Fluorcarbon coating-Surface Coatings XYLAN 1070. XYLAN 1024.

Diameter:1/4″~3 3/4″
Length:20mm~6000mm(usually 12 feet)
Grade :B7
Standard: M6-M100

Material: ASTM A193 B7.
Surface finished: PTFE Xylan Coated.
Standard: ANSI B18.1.1.

 Xylan coating because of its reputation in the Oil and Gas Industry as one of the premium coating providers for bolts and nuts. As a Qualified Approved Coater, our PTFE coated bolts and nuts have been used in various countries in South America,southeast Asia.Middle east.

Xylan coatings have a broad range of properties which make them ideal for a variety of applications. Xylan differs from traditional Fluoropolymer coatings in one very important aspect … they are composite materials. Lubricants with the lowest-known coefficient of friction are combined with the newest high temperature resistant organic polymers to create Xylan  coatings. Together these ingredients form “plastic alloys” with unique properties.

STV big size Swing check valve tested and Delivery to Customer

/0 Comments/in , /by

We delivered a Big Size Swing Check valves to one of European customers.

ASTM A351 CF8 304 Stainless Steel Body, Cover and Disc.
304 Stainless Steel Trim.
PTFE Cover Seal. Bolted Cover Design.
Face to Face dimensions in accordance with ANSI B16.10
Class 300 pressure rated. -20 / +200 deg C Temp rated.
Flanged ANSI 300 end connections.
Size:3″Painting: Inside and outside not painted.
Bolts and nuts between the body and bonnet and also the gland nuts and gland eye bolts made of steel A193-B8/A194-8
Material:
Body/bonnet CF8
Pressure:300LB
Stem packing graphite.
Size:32 Inch

How to Selection and installation of forged steel gate valve

/0 Comments/in , /by

Forged steel gate valve is mainly used to cut off or connect the medium in the pipeline, not for regulating or throttling. According to different methods, gate valve can be divided into parallel gate valve, wedge gate valve, lifting gate valve, rotary rod gate valve, quick opening and closing gate valve, necking gate valve, flat gate valve, etc.

  1. The installation position, height, inlet and outlet direction shall meet the design requirements, and the connection shall be firm and tight.
  2. The handle of all kinds of manual valves for installation of thermal insulation pipeline shall not be downward.
  3. Visual inspection shall be carried out before the installation of the valve. The nameplate of the valve shall comply with the provisions of the current national standard “general valve mark” GB 12220.
  4. The gate valve with transmission mechanism shall be installed according to the product instructions.
  5. The hand wheel, handle and transmission mechanism are not allowed to be used for lifting and collision is strictly prohibite
     Stv Valve Technology Group  Co.,limited is the Forged Steel Valve professional Manufacture.

Stv delivered ANSI B16.5 WN RF Welding Neck Flange to Thailand

/0 Comments/in , /by
Product Name
Class 150 ANSI B16.5 WN RF Welding Neck Flange
Material

Stainless steel:ASTM A182 F304, F316L, F321, etc

Duplex steel:S31803, S32205, S32750, etc
Size
DN10-DN3600
Pressure
150LB, 300LB, 600LB, 900LB, 1500LB, 2500LB
Standard
ASME, ANSI, JIS,  DIN, etc
Connection
Butt welded or threaded
Certificate
ISO/PED
Type
Slip-on, Lap joint, Welding neck, Socket welding, Threaded, Blind.
Application
The flanges are used for the connection of tubes that transport water, oil, gas, etc

We are the china manufacture for producing not only duplex and super duplex steel F51/2205/S31803,
F53/2507/S32750/S32760, but also stainless steel materials (SS304/L, SS316/L, SS321),
specially Austenite stainless 310S, 347H, 317L, 904L etc.STV Valve will be your reliable choice.

What is the function of the foot valve?

/0 Comments/in /by

The Foot valve consists of valve evaluation, disc, bonnet, bushing, sealing ring and other parts. See the water from the water source in the figure below from the bonnet to the valve body. Under the action of fluid pressure, the valve disc opens water.

When the pressure in the outlet pipe closes the valve disc rapidly after stop, the liquid will not be poured back to the water source, which plays the role of unblocked pumping and saving water energy loss.

  1. Check valves should be installed on equipment, installations and pipes to prevent medium backflow.
  2. Check valves are generally suitable for cleaning media, not for media containing solid particles and high viscosity.
  3. Vertical lift check valves should be generally used in horizontal pipelines with nominal diameter of 50mm.

STV Delivery Forged Steel Wafer Ball Valve,150LB,F316L,DN50

/0 Comments/in , /by

Product Name: Forged Steel Wafer Ball Valve,150LB,F316L
Connect form: flange.
Size: 1/2″ – 4″.
Suitable medium: water, oil, steam,
Suitable temperature: -40 – +150°C.
Working pressure: 1.6 -2.4 – 6.4.
Main material: A105.F304 ,F316,F316L.
Design and manufacture adoption: ISO, API, GB, BS, we are strict with the security
and quality ,it was accepted by clients and sells to internal, external market.

STV Valve Technology Group Co., Ltd is a professional leader China wafer ball valve,wafer ball valve stainless steel,wafer type ball valve,wafer ball valve manufacturers,lug wafer ball valve,wafer ball valve dimensions,wafer ball valve face to face,wafer ball valve italy,wafer ball valve pn16,wafer flanged ball valve,wafer floating ball valve,wafer pattern ball valve,wafer type ball valve drawing,wafer type ball valve manufacturers manufacturer with high quality and competitive price.

China wafer ball valve,wafer ball valve stainless steel,wafer type ball valve,wafer ball valve manufacturers,lug wafer ball valve,wafer ball valve dimensions,wafer ball valve face to face,wafer ball valve italy,wafer ball valve pn16,wafer flanged ball valve,wafer floating ball valve,wafer pattern ball valve,wafer type ball valve drawing,wafer type ball valve manufacturers manufacturer

Ball Valves vs Gate Valves,Which is best for you?

/0 Comments/in /by

In the market, the valve products are more. Generally, there are many ball valves and gate valves. For those who want to buy two products, they will know what kind of use and function and the difference between the two before buying. How to choose good quality ball valve and gate valve. For this reason, I have summarized some knowledge about ball valves and gate valves. Just tell you the difference between a ball valve and a gate valve? What should you pay attention to when using the gate valve?

1, gate valve

The advantages of the gate valve are small resistance, tight shut-off, and no water hammer, which are widely used in various liquid and gas shut-off valves. It also has a certain adjustment function, but when it is partially opened, the shutter is easily wetted by the fluid, and when the fluid flows, it will cause the board to vibrate and the sealing surface is easy to wear.
The gate valve is one of the commonly used shut-off valves. It is mainly used to turn on or off the medium in the pipeline, and is not suitable for regulating the flow of the medium. The valve is suitable for a wide range of pressures, temperatures and calibers, especially for medium and large diameter pipes.

2, the ball valve

(1) The ball valve has a simple structure, the ball valve is lighter in weight than the gate valve, the structure is relatively simple, and the overall weight is very light, so it can exert a good effect in the low temperature medium system; the sealing surface is easy to process, and the sealing property is good. Easy to operate, quick switch, short start-up and shut-down time, can quickly optimize the test system, and no impact during valve start-up and shutdown.

(2) It can not be used to adjust the flow rate. It is suitable for high pressure (up to 320 gauge) pipelines. Currently, it can only be used below 200 °C due to the limitation of sealing materials. It can also be used for suspensions and viscosities. Medium. Moreover, its adjustment performance is worse than the shut-off valve, especially the pneumatic valve (or electric valve).

Stv Valve Technology Group has a full line of gate valves and ball valves, in addition to many other types of valves. See what we have here.

STV Delivery 1000wog L Port 3 Way Ball Valve with Locking Handle

/0 Comments/in , /by

Today we have delivered 800PCS three-way ball valves to our customers. 1000wog L Port 3 Way Ball Valve with Locking Handle,DN15,SS304,BSPT END,800PCS

​Description
Product Name1000wog L Port 3 Way Ball Valve with Locking Handle
ModleQ14F-1000WOG
Size1/2″(DN15)
Bodystainless steel 304
SeatPTFE
Stem304
Ball304
Matrialss304
Threaded StandardBSPT
ApplicationIndustrial Usage, Water Household Usage
Pressure1000wog
Temperture Range-20–200degree
ConnectionFemale Threaded
Suitable mediumwater, oil, air and some corrosive liquid etc(WOG)

We have a huge range of 3 way ball valve manufacture,3 way ball valve 3/8,3 way ball valve full bore,3 way ball valve drawing,3 way ball valve datasheet,3 way ball valve dn50,3 way ball valve l port,3 way ball valve l&t,l port 3 way ball valve if you can’t find what you’re looking for, please get in touch with our sales team who will help you find what you need.