1000 Wog / Pn69 One-piece Stainless Steel Reduced Bore Ball Valve Structural Features
- Material:
- Stainless Steel
- Connection Form:
- Thread
- Driving Mode:
- Manual
- Nominal Pressure:
- 1000WOG
- Channel:
- Straight Through Type
- Structure:
- Floating Ball Valve
- Size:
- 1/4"~2"
For oil and gas applications requiring reliable shut-off, a one-piece stainless steel reduced port ball valve with 1000 WOG (PN69) rating delivers a durable, cost-effective solution. Select SS316 for aggressive media; SS304 suits standard services. Available in sizes 1/4" to 2" with threaded NPT or BSP connections. The floating ball design uses upstream pressure to push the ball against the downstream seat for positive sealing. The one-piece body eliminates leak paths found in multi-piece designs.
One-Piece Construction
The valve body is manufactured from a single investment casting, eliminating body seal joints found in multi-piece designs. The result is a more robust valve with fewer potential leak paths, offering a compact and economical solution for general shut-off applications.
Key attributes of the 1 pc ball valve:
-
🔒 Single body casting minimizes leak points
-
💰 Cost-effective design
-
📦 Compact dimensions
-
🔧 Low maintenance requirements
Design and Standards
Compliance with industry standards ensures compatibility and safety. Typical design and testing standards for this 1 piece ball valve include:
| Standard | Description |
|---|---|
| ASME B16.34 | Design and wall thickness |
| ANSI B1.20.1 | Pipe thread (NPT) |
| BS 21 / ISO 228-1 | Pipe thread (BSP) |
| API 598 | Inspection and testing |
Performance Specifications
| Parameter | Specification |
|---|---|
| Pressure Rating | 1000 WOG (PN69 / 6.9 MPa) |
| Connection | Threaded (NPT, BSPT, DIN, ISO) |
| Body Material | SS304 / SS316 (CF8/CF8M) |
| Seat Material | PTFE or RPTFE |
| Port Type | Reduced Port |
| Size Range | 1/4" – 2" |
The piece ball valve design, with its one-piece body and reduced port, is well-suited for applications where flow rate is not the primary concern.
Material Selection
| Component | Materials |
|---|---|
| Body & Bonnet | SS304 / SS316 (CF8/CF8M) |
| Ball & Stem | SS304 / SS316 |
| Seats & Seals | PTFE / RPTFE |
| Handle | SS304 with plastic sleeve |
The floating ball structure uses pressure from the upstream media to push the ball against the downstream seat, creating a positive seal.
Safety Features
The 1 pc ball valve includes several features suitable for oil and gas applications:
-
Blow-out proof stem prevents accidental stem ejection under pressure
-
Pressure balance hole in ball slot relieves cavity pressure
-
Locking handle option prevents unauthorized operation
Reduced Port Configuration
The reduced port (or reduced bore) has a ball bore smaller than the connected pipe. This reduces material and manufacturing costs compared to a full-bore design. While it creates a slight pressure drop, it is acceptable for many on/off isolation applications where full flow capacity is not required.
Selection and Application Notes
Selection priorities for the piece ball valve:
-
Verify pressure rating matches system requirements (1000 WOG / PN69)
-
Confirm thread type (NPT, BSPT, DIN, or ISO) matches existing pipework
-
Select SS316 for corrosive or aggressive media; SS304 for standard service
-
Choose reduced port for cost-effective isolation where full flow is not required
-
Consider locking handle option for applications requiring tamper-proof operation
The one-piece stainless steel ball valve provides a robust and economical solution for on/off control in oil and gas systems. The 1 piece ball valve and 1 pc ball valve designs offer reliable shut-off with minimal maintenance requirements.
FEATURES:
- Blow-out Proof Stem
- Investment Casting Body
- Pressure Balance Hole in Ball Slot
- Reduce Port
- Various Thread Standard Available
- Locking Device Available


STANDARD:
- Design: ASME B16.34
- Wall Thickness : ASME B16.34,GB12224
- Pipe Thread : ANSI B 1.20.1,BS 21/2779
- DIN 259/2999,ISO 228-1
- Inspection&Testing : API 598
| Body | CF8/CF8M |
| Seat | RPTFE |
| Bonnet | CF8/CF8M |
| Ball | SS304/SS316 |
| Stem | SS304/SS316 |
| Stem Gasket | PTFE |
| Packing | PTFE |
| Packing Gland | SS304 |
| Handle | SS304 |
| Spring Washer | SS304 |
| Handle Nut | ASTM A194 B8 |
| Handle Sleeve | PLASTIC |
| Handle Lock | SS304 |
| Pin | PLASTIC |
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