Stocked AISI 316 stainless-steel ball valves with a repairable three-piece body — full-bore, blow-out proof stem, PTFE seats. Available in threaded (NPT/BSP), socket-weld and flanged ends, DN15 to DN100.
A repairable three-piece stainless-steel (AISI 316) ball valve for water, oil, gas and mild chemical service. Full-port body, reinforced PTFE seats and a blow-out proof stem deliver tight shutoff from −20 °C to +180 °C, at PN16 / 1000 WOG / Class 150.
| Size Range | DN15 – DN100 (1/2" – 4") |
|---|---|
| Pressure Rating | PN16 · 1000 WOG · Class 150 |
| Body Material | AISI 316 (CF8M / 1.4408) |
| Ball & Stem | Solid AISI 316 ball, blow-out proof stem |
| Seat / Seal | PTFE (Reinforced R-PTFE / Devlon optional) |
| End Connection | Threaded NPT/BSP · Socket Weld · Flanged |
| Suitable Medium | Water, Oil, Gas, Mild Chemicals |
| Temperature | −20 °C to +180 °C |
| Actuation | Manual lever / gear · Pneumatic · Electric |
| MOQ | 100 pcs per size (OEM logo from 500 pcs) |
The PF-BV-3PC-316 series is a general-purpose three-piece ball valve machined from AISI 316 stainless steel. The three-piece body lets maintenance crews swing the center section out for cleaning, seat replacement or inspection without breaking the pipeline end connections — a meaningful cost saver on long, welded or flanged runs. Full-port (regular bore) geometry keeps pressure drop low; a reduced-bore option is available on request to trim cost.
Bore matches pipe ID for low pressure drop; reduced-bore option available.
Center body swings out for inline repair — no need to cut welded ends.
Stem machined from below the body, retained from inside — cannot eject under pressure.
Electrical continuity between ball, stem and body — safe for combustible media.
Padlock-compatible handle prevents unauthorized operation on critical lines.
Chemically inert, low operating torque; R-PTFE and Devlon for higher temp/abrasion.
Engineered for liquid and gaseous service across water, oil, fuel gas, steam (within rating), compressed air and a broad range of mild chemicals compatible with AISI 316 and PTFE. Not intended for media that attacks PTFE (e.g. molten alkali metals, elemental fluorine at elevated temperature) — for those, request PCTFE or PEEK seats. For drinking-water service, a WRAS / NSF/ANSI 61 certified variant is available on request.
Bodies are precision-machined from AISI 316 bar / investment casting (CF8M), with CNC finishing, automated seat insertion and 100% pressure testing before packing. OEM/ODM services cover custom brand laser-marking, bespoke packaging & labels, customer-specific end combinations, extended bonnet, locking devices, and integrated actuator mounting kits (ISO 5211 pad). Sample lead time 7–10 days; mass production 25–35 days; Material 3.1 (3.2 on request) included as standard documentation.
| Parameter | Value |
|---|---|
| Design Standard | ASME B16.34 / EN 12516-1 |
| Face-to-Face Dimension | ASME B16.10 / EN 558-1 Series 1 (flanged) |
| End Connections | Threaded · Socket Weld · Flanged (ASME B16.5 / EN 1092) |
| Thread Type | NPT (ASME B1.20.1) / BSP (ISO 228-1) |
| Pressure Rating | PN16 · 1000 WOG · Class 150 |
| Shell Test Pressure | 1.5 × rated (hydrostatic, ASME B16.34) |
| Seat Test Pressure | 1.1 × rated (low-leakage closure) |
| Temperature Range | −20 °C to +180 °C (PTFE); up to +250 °C with R-PTFE/Devlon |
| Port Type | Full port (regular bore); reduced bore on request |
| Blow-out Proof Stem | Standard |
| Anti-Static Device | Standard (ball–stem–body continuity) |
| Fire-Safe | API 607 / API 6FA (optional) |
| Locking Device | Padlock lever (optional) |
| Actuator Mounting | ISO 5211 mounting pad (optional) |
| Operator | Lever (DN15–50) / Gear operator (DN65–100) |
| Packaging | Individual carton + plywood case / pallet |
Values are indicative for the DN50 configuration; confirm per-size figures on the datasheet bundled with each RFQ. All sample data — replace before delivery.
| Component | Material | Grade |
|---|---|---|
| Body & Caps | Stainless Steel | AISI 316 / CF8M (1.4408) |
| Ball | Stainless Steel | AISI 316, mirror polished |
| Stem | Stainless Steel | AISI 316 |
| Seat | PTFE | Virgin PTFE / R-PTFE optional |
| Body Gasket | PTFE / Graphite | PTFE envelope or spiral-wound |
| Gland & Bolting | Stainless Steel | AISI 304 / B8 |
| Lever / Handle | Stainless Steel | AISI 304 |
Every shipment leaves with a Material 3.1 certificate, hydrostatic test record and dimensional inspection report. Notified-body 3.2 certificates, NACE MR0175 for sour service, and third-party witnessed tests are arranged on request.
The combination of AISI 316 corrosion resistance, a repairable three-piece body and PTFE seats makes this series a default specification across utility, process and auxiliary duties in the industries below. Tell us the working condition and we will confirm material, seat and end-connection suitability.
SS316 resists treated water; padlock levers secure unattended lines.
Anti-static, fire-safe and blow-out proof features suit fuel and hydrocarbon lines.
PTFE seats and SS316 compatibility cover a broad range of mild chemicals.
SS316 hygiene, smooth finish and CIP-friendly three-piece cleaning.
AISI 316 resists salt-spray; locking handles suit exposed deck service.
Cooling-water, lube-oil and auxiliary duties; gear operator for larger sizes.
Common pairings for this valve — add them to the same RFQ and we quote and consolidate as one shipment.
| SKU | Item | Why pair |
|---|---|---|
| PF-BV-3PC-316-DN100 | 3-Piece SS316 Ball Valve, DN100 | Same series, larger size for main header |
| PF-FL-SO-316-DN50 | SS316 Slip-On Flange, DN50 | Matching flange ends for flanged variant |
| PF-GS-GRAPH-DN50 | Spiral-Wound Graphite Gasket Set, DN50 | Reliable sealing at flanged joints |
| PF-EA-ONOFF-220-DN50 | Electric Actuator, On/Off 220V | Automate the valve for remote shutoff |
Related items most often quoted alongside this valve — request them in the same RFQ for consolidated pricing and shipment.
This valve ships inside bundled industry solutions — cross-category purchasing lists, consolidated into one container.
SS & plastic valves, centrifugal and submersible pumps, PVC fittings, gaskets — bundled for treatment-plant projects.
API/SS/carbon-steel valves, chemical pumps, flanges and spiral-wound gaskets — phased delivery with Material 3.2.
Written for sourcing engineers — the checks that decide size, construction, material and seat before you raise an RFQ.