3-Piece Stainless Steel Trunnion Ball Valve PN25

Design & Manufacture GB/T 12237, API 6D, BS 5351
Valve Type Three-Piece, Trunnion Mounted Ball
Body Material CF8M (AISI 316)
Ball Material 316 Stainless Steel (Hard Chrome Plated or Coated)
Stem Material 316 Stainless Steel (Anti-Blowout Design)
Seat Material 316 Stainless Steel + PTFE (Politetrafluoroethylene)
Stem Seal / Packing Flexible Graphite + PTFE
Operation Worm Gear Operator
Flange Connection GB/T 9113, HG/T 20592, ASME B16.5, BS EN1092-1
Pressure Rating PN25 / Class150

Description

3-Piece Trunnion Mounted Ball Valve – Technical Datasheet

Item	Specification
Design & Manufacture	GB/T 12237, API 6D, BS 5351
Valve Type	Three-Piece, Trunnion Mounted Ball
Body Material	CF8M (AISI 316)
Ball Material	316 Stainless Steel (Hard Chrome Plated or Coated)
Stem Material	316 Stainless Steel (Anti-Blowout Design)
Seat Material	316 Stainless Steel + PTFE (Politetrafluoroethylene)
Stem Seal / Packing	Flexible Graphite + PTFE
Operation	Worm Gear Operator
Flange Connection	GB/T 9113, HG/T 20592, ASME B16.5, BS EN1092-1
Pressure Rating	PN25 / Class150
Test & Inspection	GB/T 13927, API 598, ISO 5208
Shell Test Pressure	3.8 MPa (PN38)
Seat Test Pressure (High Pressure)	2.8 MPa (PN28)
Seat Test Pressure (Low Pressure / Air)	0.6 MPa
Leakage Class	Grade A (GB/T 13927 / API 598 / ISO 5208)
Temperature Range	-29°C to +180°C (with PTFE Seat)
Applicable Media	Water, Steam, Oil, Acids, Alkalis, Corrosive Fluids
Fire Safe Design	Yes (Secondary Metal-to-Metal Seal)
Key Features	Trunnion Mounted Design, Anti-Static Device, Anti-Blowout Stem, Self-Pressure Relieving, Easy Maintenance

Main Connection Dimensions (PN25) – Standard: HG/T 20592

DN	Inch	L (mm)	D (mm)	K (mm)	n×φd	H≈ (mm)	D0 (Gear)
50	2″	250	165	125	4×φ18	320	200
65	2.5″	270	185	145	4×φ18	350	200
80	3″	280	200	160	8×φ18	380	250
100	4″	300	220	180	8×φ18	450	300
125	5″	325	250	210	8×φ18	550	350
150	6″	350	285	240	8×φ22	650	400
200	8″	400	340	295	8×φ22	850	500
250	10″	450	395	350	12×φ22	1050	600
300	12″	500	445	400	12×φ22	1250	700

Note: Dimensions are for reference only. ‘L’ is face-to-face length, ‘H’ is approximate overall height (with gear). Final dimensions are subject to the manufacturer’s product drawing.

GUATANTEE:

SAVVY VALVES is committed to delivering exceptional product quality and worry-free after-sales service. Our valves are guaranteed to provide a minimum service life of 12 months, during which we will supply all necessary spare parts and detailed maintenance instructions free of charge. Within the warranty period, if any non-human-induced damage occurs, we will replace components at no cost and provide professional technical support. After the warranty expires, customers only need to pay for the cost of spare parts, while still benefiting from discounted maintenance services. Our goal is to help clients reduce operational costs and enhance production efficiency through reliable quality and comprehensive after-sales support. Whether for technical inquiries or maintenance needs, our expert team will respond promptly to ensure your valve system maintains optimal performance at all times.

HOT SALE PRODUCTS

For over 10 years, we have been a leading supplier of industrial valves for major global projects in water supply, oil & gas, and desalination.

News