Product Name
Butt Weld Ball Valve — Extended Ends, 3-Piece, 316, 1000 WOG, Full Port
Product Summary
Butt weld ball valve with extended weld ends. The extra length keeps welding heat away from the PTFE seats — so you weld it in fully assembled, and the seals survive.
Three-piece body: after it is welded in, you can still open it and replace the seats. The ends stay in the line. Nothing gets cut out.
316 stainless · 1000 WOG · full port · 3/8″ – 4″ · lockable lever
Before you order: the weld ends are JIS pipe, Schedule 5S only. They will not mate cleanly with Sch 40 or heavier pipe. Send us your pipe spec and we will confirm it fits — that email is cheaper than a valve you cannot use.
Made in Taiwan. No MOQ. Full 17-part material list and the pipe OD / wall thickness table are below.
Product Description
A butt weld ball valve in 316 stainless steel, three-piece body, 1000 WOG, full port, 3/8″ to 4″. The weld ends are extended — noticeably longer than a standard butt weld end — and that is the entire point of this valve.
Read the two sections below before you order. One tells you why the ends are long. The other tells you what pipe this valve fits, and what pipe it does not.
Why the Weld Ends Are Long
A ball valve seals on PTFE. PTFE begins to degrade well below the temperature of a weld pool.
On a standard butt weld valve, the weld sits close to the body — and the heat travels down the metal into the seats. That is why people weld a valve in, pressure-test the line, and find the valve leaking. The seals were cooked during installation, before the valve ever saw a drop of product.
The extended ends move the weld away from the seats. The extra length is the heat sink. You weld the valve in fully assembled — no dismantling, no removing the ball and seats, no reassembling it in a trench.
And because the body is three-piece, you can still take it apart afterwards: undo the body bolts, lift the centre section out, replace the seats, put it back. The ends stay welded in the line. Nothing gets cut out.
What Pipe Does It Fit? (Read This)
We would rather lose the order than have you weld this valve into the wrong pipe.
| This valve | |
|---|---|
| Pipe standard | JIS pipe dimensions |
| Wall thickness | Schedule 5S only. We do not make it in other schedules. |
| It fits | JIS Sch 5S thin-wall stainless pipe |
| It does not fit | Schedule 40 or heavier pipe, without machining a transition. The wall thickness will not match and the bore will step at the weld. |
← Swipe the table to see all columns →
If you are running Schedule 40 pipe, this is the wrong valve and we will tell you so. Send us the pipe spec — standard, size and schedule — before you order, and we will confirm whether this valve mates with it. That one email is cheaper than a valve you cannot use.
Dimensions
| Size | Ø d bore |
L face to face |
H height |
T wall thk |
Ø D pipe O.D. |
D1 lever |
|---|---|---|---|---|---|---|
| 3/8″ | 12.5 | 160 | 57.2 | 1.2 | 17.2 | 105 |
| 1/2″ | 15.0 | 180 | 59.1 | 1.65 | 21.7 | 105 |
| 3/4″ | 20.0 | 180 | 62.55 | 1.65 | 27.2 | 105 |
| 1″ | 25.0 | 192 | 70.7 | 1.65 | 34.0 | 128 |
| 1-1/4″ | 32.0 | 205 | 76.2 | 1.65 | 42.7 | 128 |
| 1-1/2″ | 40.0 | 230 | 89.1 | 1.65 | 48.7 | 154 |
| 2″ | 50.0 | 243 | 98.15 | 1.65 | 60.5 | 194 |
| 2-1/2″ | 65.0 | 294 | 110.6 | 2.1 | 76.1 | 194 |
| 3″ | 80.0 | 320 | 124.0 | 2.1 | 89.0 | 276 |
| 4″ | 100.0 | 357 | 168.5 | 2.1 | 114.3 | 335 |
← Swipe the table to see all columns →
ØD is the pipe outside diameter. T is the wall thickness. Those are the two numbers a welder actually needs, and most valve makers do not publish them. Check them against your pipe before you order.
What Is Inside It — Full Material List
All seventeen parts, and what each one is made of.
| No. | Part | Material |
|---|---|---|
| 1 | Body | ASTM A351 Gr. CF8M (316) |
| 2 | Cap | ASTM A351 Gr. CF8M (316) |
| 3 | Ball | ASTM A351 Gr. CF8M (316) |
| 4 | End seals | PTFE |
| 5 | Bolts | ASTM A193 Gr. B8 |
| 6 | Gasket | PTFE |
| 7 | Thrust washer | PTFE |
| 8 | Stem | ASTM A276 Gr. 316 |
| 9 | Packing | PTFE |
| 10 | Gland | SS304 |
| 11 | Bevel washer | SS304 |
| 12 | Spring washer | SS304 |
| 13 | Locking plate | SS304 |
| 14 | Handle | SS304 |
| 15 | Handle sleeve | Vinyl grip |
| 16 | Bolt washer | SS304 |
| 17 | Bolt nuts | ASTM A194 Gr. 8 |
← Swipe the table to see all columns →
Specifications
| Item | Specification |
|---|---|
| Valve type | Three-piece ball valve, extended butt weld ends |
| Pressure rating | 1000 WOG |
| Body, cap & ball | 316 stainless (ASTM A351 CF8M) |
| Stem | ASTM A276 Gr. 316 |
| Seats & seals | PTFE |
| Port | Full port |
| Size range | 3/8″ – 4″ |
| Pipe standard | JIS |
| Wall thickness | Schedule 5S (we do not make other schedules) |
| Operation | Manual lever, lockable |
| Country of origin | Made in Taiwan |
Not Sure Butt Weld Is What You Want?
Welding a valve into a line is permanent. If you would rather be able to unscrew it, or if your pipe is not JIS Sch 5S, look at these instead:
- Three-piece ball valve, PT threaded / socket weld / butt weld — same three-piece serviceable body, but you choose the end connection. Standard butt weld ends, not extended.
- Pneumatic version of this valve — same extended butt weld body, with an air actuator on top.
Where It Belongs
- Welded stainless lines that still need servicing — the three-piece body opens in place, so the seats can be replaced without cutting the valve out.
- JIS Sch 5S thin-wall piping — water, oil, gas, process lines up to 1000 WOG.
- Installations where a threaded joint is not acceptable — no thread, no sealant, no leak path.
Buying From Us
- No minimum order quantity.
- Manufacturer, not a trading company. Our own factory in Taiwan, stainless valves since 1999.
- Mill certificate on request.
- Quote turnaround: within 24 hours.
Request a Quote — reply within 24 hours →
Send us your pipe spec — standard, size and schedule — and we will confirm the valve mates with it before you commit.
FAQ
Why are the weld ends extended?
To keep welding heat away from the PTFE seats. On a standard butt weld valve the weld sits close to the body and the heat travels down the metal into the seats — which is why a valve can pass inspection, get welded in, and then leak on the pressure test. The extra length acts as a heat sink, so you can weld the valve in fully assembled without dismantling it.
What pipe does this valve fit?
JIS pipe dimensions, Schedule 5S wall thickness only. It will not mate cleanly with Schedule 40 or heavier pipe without machining a transition — the wall thickness does not match and the bore will step at the weld. Send us your pipe standard, size and schedule and we will confirm before you order.
Do you make other schedules?
No. Schedule 5S only.
Can I service the valve after it is welded in?
Yes — that is the reason for the three-piece body. Undo the body bolts and lift the centre section out to replace the seats. The welded ends stay in the line. Nothing is cut out.
Do I have to dismantle the valve before welding?
No. The extended ends exist so you do not have to. Weld it in assembled.
What sizes do you make?
3/8″ to 4″. Ten sizes, all in the dimension table on this page, including pipe outside diameter and wall thickness.
What is the pressure rating?
1000 WOG.
Is it full port?
Yes.
Can I get it with an actuator?
Yes — the pneumatic version is the same extended butt weld body with an air actuator fitted.
Do you have a minimum order quantity?
No. Tell us what you need and we will quote it.
Sample Policy
We are happy to provide product samples for customers to evaluate quality or conduct testing. The process typically begins with a quotation based on the customer’s specifications.
If the pricing is acceptable, we can offer samples either free of charge or at a cost depending on the product type and availability.
Shipping fees are borne by the customer.
Order Process
After confirming the product requirements and other details with the customer, we will issue a Sales Confirmation for approval. Once confirmed, the customer is required to pay a 30% deposit to proceed with production.
When mass production is completed and the goods pass inspection, the customer must pay the remaining 70% balance before shipment is arranged.
Related Products
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3-Piece Ball ValvesStainless Steel 3-Piece Ball Valve, 1000 WOG – Threaded & Socket Weld
FAQ
A. How can I request a quote?
Please provide a detailed inquiry sheet including product specifications, materials, quantities, and any special requirements. We will offer a quotation based on your request.
B. What are your quotation terms?
Our quotations are typically based on FOB terms. However, we can also offer CFR, CIF, or other Incoterms upon request.
C. What is your Minimum Order Quantity (MOQ)?
We have no MOQ. We operate on a made-to-order basis and accept orders of any size — trial orders are welcome. For smaller orders, freight is arranged and borne by the buyer.
D. What are your payment terms?
By T/T – 30% down payment upon order confirmation, and 70% balance before shipment.
E. What is your lead time?
Lead time depends on order quantity and specifications. We will confirm the exact schedule when you request a quote.
Want to know more?
If you’re interested in any of our products or services, simply fill out the form below. Our team will get in touch with you as soon as possible to provide the information you need.