DIN Standard F4/F5/F7 Stainless Steel Flanged Gate Valve

1. RST Valve company is a industry valves manufacturer, including Thread & Flange Ball Valves, Gate Valves, Globe Valves, Check Valves, Y Strainers in stainless steel, carbon steel, cast steel, forged steel and alloy steel.
2. Gate Valve mainly has Thread 200WOG Gate Valve, API600 Flanged ends Gate Valve, DIN F4/F7 Stainless Steel Flanged ends Gate Valve, Carbon Steel Bellow Seal Gate Valve, Forged Steel A105 Gate Valve, 800LB Thread ends Gate Valve, F11/F22/F51 1500LB Flanged ends Gate Valve, Butt Welded Gate Valve, Pressure Sealed Socket Welded Gate Valve, Flanged ends 2500LB High Pressure Gate Valve, 150LB~900LB WCB Flanged Gate Valve, Rising Stem Gate Valve, Non-Rising Stem Gate Valve, Gear Operated Gate Valve, Gate Valve with Pneumatic/Electric Actuator.
3. A gate valve, also known as a sluice valve, is a valve that opens by lifting a round or rectangular gate/wedge out of the path of the fluid. The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar, so gate valves are often used when a straight-line flow of fluid and minimum restriction is desired. The gate faces can form a wedge shape or they can be parallel. Gate valves are primarily used to permit or prevent the flow of liquids, but typical gate valves shouldn't be used for regulating flow, unless they are specifically designed for that purpose. Because of their ability to cut through liquids, gate valves are often used in the petroleum industry. For extremely thick fluids, a specialty valve often known as a knife valve is used to cut through the liquid. On opening the gate valve, the flow path is enlarged in a highly nonlinear manner with respect to percent of opening. This means that flow rate does not change evenly with stem travel. Also, a partially open gate disk tends to vibrate from the fluid flow. Most of the flow change occurs near shutoff with a relatively high fluid velocity causing disk and seat wear and eventual leakage if used to regulate flow. Typical gate valves are designed to be fully opened or closed. When fully open, the typical gate valve has no obstruction in the flow path, resulting in very low friction loss.

Specifications:Features:
 

1. Drive unit is made to user's request if not specified handwheel drive will be used.
2. Top-mounted stem nut can prevent stem disc from falling off when valve is at open position and handwheel is taken off.
3. Packing uses flexible graphite for dependable sealing performance.If requested by users,packing spacer ring and greasing mechanism can be available.
4. Upper seal design to ensure dependable packing and sealing when valve is fully opened.(Replacement of packing under pressure is not recommended)
5. Lift stem,with stem and disc connected by t-slot,and stem T head intergrally forged to ensure sufficient strength of joint.

 
Technical Specification:
 

1. Design and Manufacture: DIN3352
2. Inspection and Test: ISO 5208,EN12266
3. Flanged ends dimension: EN 1092-1,DIN2544 PN25,DIN2545 PN40,DIN2546 PN64
4. Butt-welded ends dimension: EN12627
5. Face to face and end to end: DIN3202,EN558-1,ISO5752
6. Pressure-temperature ratings: DIN2401

FAQ
Q1: We are interested in your products?
A1: In order to recommend you suitable products, please provide detail information, like size, material, pressure, model.
Q2: Is the requirement for MOQ?
A2: For some small size, like 1/4''-1''(DN6-DN25), it request the MOQ is 50pcs for each size. Generally speaking, it depends on your order.
Q3: How about the warranty?
A3: The warranty time is 18 months after leaving our factory. We can repair or change because of the quality problems.
Q4: Payment
A4: Mainly T/T, Western Union & PayPal are applicable for us. Payment Term: 30% prepayment, 70% balance paid before shipping or against copy of BL.
Q5: Can you manufacture different standards valves according to customer requirements?
A5: Yes. We can manufacture API,DIN,GOST,JIS standards for different pressure & temperature & size according to different needs.
If you want to know more about our products, please contact freely. We will patiently answer your all questions.
 
Vera Wang
 
 
ZHEJIANG RST VALVE TECHNOLOGY CO., LTD
Add: No.917, Tianzhong Rd, Yongiang Hi-Tech Park, Wenzhou city, P.R.China
Tel: 0086-577-86917889
Fax: 0086-577-86917828
Web: industryvalves.en.made-in-china.com