Wafer ball valve is characterized by its compact design, which allows it to be installed between two flanges in a piping system. It uses a spherical ball with a hole through the center. When the ball is rotated 90 degrees, the flow is either allowed or blocked. Many wafer ball valves offer a full bore design, meaning the hole in the ball is the same diameter as the pipeline, minimizing pressure drop. wafer ball valves are a versatile, cost-effective, and space-saving solution for controlling flow in various industrial applications. Their compact design and ease of installation make them a popular choice in many industries.
Applicable Standards
Size range: API 6D, ISO 17292, BS 5351, API 608
Design: ASME B16.34, EN 12516-2, ISO 14313
Face to face dimension: EN 558 series 100
Max working pressure: 40 bar bidirectional
Flange drilling: PN6, PN10, PN16, PN25, PN 40, ANSI class 150, class 300
Operating temperature: -20 °C ÷ +200 °C (-4 °F ÷ +392 °F)
Leakage class Rate:“A”- No leakage - according to EN 12266-1
Top flange: ISO 5211
Features:
1. Solid full bore ball valve with short face-to-face dimension. For mounting between flanges.
2. The one-piece valve body obtained from precision casting (inox) or from cutout (carb. steel) has a little face to face (flat body) that allows the easy installation of the valve.
3. The stem is anti blow-out and it has an antistatic device.
4. Stem packing adjustable with Chevron rings in P.T.F.E. + carbographite.
5. The seat consists of two rings in P.T.F.E. mounted inside the internal slots of the valve to guarantee the perfect tightening.
Material Specification | |||
NO. | DESCRIPTION | SS304 | SS316 |
1 | BODY | A351 CF8 | A351 CF8M |
2 | BODY GASKET | PTFE | PTFE |
3 | SEAT GASKET | PTFE | PTFE |
4 | CAP | A351 CF8 | A351 CF8M |
5 | BALL | A182 F304 | A182 F316 |
6 | ANTISTATIC DEVICE | SS316 | SS316 |
7 | STEM | A182 F304 | A182 F316 |
8 | STEM GASKET | PTFE | PTFE |
9 | NUT | A194 8M | A194 8M |
10 | BOLT | A193 8M | A193 8M |
11 | LOCKING PLATE | STAINLESS STEEL | STAINLESS STEEL |
12 | GASKET | PTFE | PTFE |
13 | STEM | A182 F304 | A182 F316 |
14 | BOLT | A193 B8M | A193 B8M |
15 | HANDLE | STAINLESS STEEL+PVC | STAINLESS STEEL+PVC |
16 | NUT | A194 8M | A194 8M |
17 | BELLEVILLE WASHER | SS301 | SS301 |
18 | PACKING GALND | A182 F304 | A182 F316 |
19 | PACKING | PTFE | PTFE |
Material Specification | ||||
NO. | DESCRIPTION | CARBON STEEL | SS304 | SS316 |
1 | BODY | A105 | A182 F304 | A182 F316 |
2 | BODY GASKET | PTFE | PTFE | PTFE |
3 | SEAT | PTFE | PTFE | PTFE |
4 | CAP | A105 | A182 F304 | A182 F316 |
5 | BALL | A182 F304 | A182 F304 | A182 F316 |
6 | ANTISTATIC DEVICE | SS316 | SS316 | SS316 |
7 | STEM | A182 F6A | A182 F304 | A182 F316 |
8 | STEM GASKET | PTFE | PTFE | PTFE |
10 | PACKING | PTFE | PTFE | PTFE |
11 | GLAND | A105 | A182 F304 | A182 F316 |
12 | BELLEVILLE WASHER | SS301 | SS301 | SS301 |
13 | STOP SCREW | A193 B7 | A193 B8M | A193 B8M |
14 | STOP PLATE | STAINLESS STEEL | STAINLESS STEEL | STAINLESS STEEL |
15 | GLAND NUT | A194 2H | A194 8M | A194 8M |
16 | HANDLE | STAINLESS STEEL+PVC | STAINLESS STEEL+PVC | STAINLESS STEEL+PVC |