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Din Pn25 Manual Cast Steel Gate Valve , Bolted Cover Metal Seated Gate Valve

Categories Cast Steel Gate Valve
Brand Name: Tengs Valve
Model Number: Z40
Certification: ISO,CE
Place of Origin: China
MOQ: 1 PC
Price: Negotiable
Supply Ability: 500 Pcs Per Month
Delivery Time: 30 Days
Packaging Details: Sea Worthy Plywoods
Body Material: Carbon Steel, Stainless Steel
Trim: Trim 1, Trim 5, Trim 8, 13Cr, Half Stellite/ Full Stellite
Size: Dn50 - Dn600
Pressure Rating: Pn 25
Actuator: Handwheel, Gear Operated Or Bare Stem
Connection Ends: RF, RTJ, BW, Butt Welding
Applicant Medium: W.O.G
Name: Manual Gate Valve
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Din Pn25 Manual Cast Steel Gate Valve , Bolted Cover Metal Seated Gate Valve

Wedge Gate Valve Cast Steel Din Pn25 Bolted Cover Metal Seal Manual Sluice Valves


Valve Construction
Gate valves are actuated by a threaded stem which connects the actuator (e.g. handwheel or motor) to the gate. They are characterised as having either a rising or a nonrising stem, depending on which end of the stem is threaded. Rising stems are fixed to the gate and rise and lower together as the valve is operated, providing a visual indication of valve position. The actuator takes the form of a nut which is rotated around the threaded stem to move it. Nonrising stem valves are fixed to, and rotate with, the actuator, and are threaded into the gate. They may have a pointer threaded onto the upper end of the stem to indicate valve position, since the gate's motion is concealed inside the valve. Nonrising stems are used underground or where vertical space is limited.


Quick Details:

1. Type: Din Pn25 Gate Valves
2. OS&Y, Bolted Bonnet, Solid or Flexible Wedge Design
3. Size Range: Dn50 to Dn600
4. Pressure Ratings: Pn25
5. Materials Available in: Cast Steel GS-C25, 1.4308, 1.4408, WCB, LCB, CF8, CF8M, CF3, CF3M, WC6, WC9, C5, C12 or Equivalent;
6. Various trim materials are available to suit different service conditions
7. Actuator: Manual, Handwheel
8. NACE MR 0175 on request


Standards

Design StandardDIN3352
Face to FaceDIN3202
Flange EndsDIN2543-2545
Test & InspectionDIN3230

Features:

1. Bonnet Gasket Style

Stainless steel + flexible graphite combined gasket;

Stainless steel + flexible graphite wounded gasket;

Ring joint gasket;

2. Packing Seal

Flexible graphite is used for packing material. PTFE or combined packing material can be also used.

3. Body and Bonnet Connection

Bolted Bonnet design. (B.B)

4. Seat

For carbon steel gate valve, the seat is usually forged steel. The seat sealing surface is overlaying welded with hard alloy specified by the customer. For Stainless steel gate valve, the seat is integral with body, or it can be machined directly after hard alloy welded. Threaded or welded type seat is also optional for stainless steel gate valve.

5. Disc Design
NPS≥2 Gate valves are flexible wedge gate, NPS<2 Gate valves are solid wedge gate.

6. Backseat Design

All gate valves have backseat design.

7. Stem Design

The stem is integral forged design.

8. Stem Nut

Usually, the stem nut is made of ASTM A439 D2. It is also can be made of copper alloy or other materials if being requested by the customer.

9. Operation

Hand wheel or bevel gear box is usually used for gate valve operation, electric actuator also can be used for gate valve operation if being requested by the customers.

Din Gate Valve Drawing

Descriptions:

1. Cast Steel Gate Valve Parts and Material List:


Parts NameMaterial
CS/Trim 1CS/Trim 8CS/Trim 5Stainless Steel
1BodyDIN 17245 GS-C25+CR 13DIN 17245 GS-C25+STLDIN 17245 GS-C25+STLDIN 17445 1.4308DIN 17445 1.4408
2WedgeDIN 17245 GS-C25+CR 13DIN 17245 GS-C25+CR 13DIN 17245 GS-C25+STLDIN 17445 1.4308DIN 17445 1.4408
3StemASTM A182 F6aASTM A182 F304ASTM A182 F316
4NutA194 2HA194 8A194 8
5BoltA193 B7A193 B8A193 B8
6GasketSS Spiral Wound W/graphite, or SS Spiral Wound W/ PTFE, or Reinforced PTFE
7BonnetDIN 17245 GS-C25+CR 13DIN 17245 GS-C25+CR 13DIN 17245 GS-C25+CR 13DIN 17445 1.4308DIN 17445 1.4408
8PackingBraided Graphite or Reformed Graphite Ring or PTFE
9GlandASTM A182 F6aASTM A182 F304ASTM A182 F316
10Gland FlangeDIN 17245 GS-C25DIN 17445 1.4308DIN 17445 1.4408
11Stem NutCopper Alloy or A439 D2
12Hand WheelDuctile Iron or Carbon Steel

2. Main Connection Dimensions:

Din Gate Valve Dimensions Drawing

PN2.5MPa DIN3202-F5
Size (mm)506580100125150200250300350400450500600
L-RF250270280300325350400450500550600650700800
W200280280300350350400450500600600650700800


3. Hydro Test Specifications:


Nominal Pressure (MPa)Shell Test (MPa)Sealing Test(MPa)Suitable Medium
1.62.41.76Water, Oil & Gas
2.53.752.75
4.06.04.4
6.49.67.04
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