3PC Flanged Forged Ball Valve

This 3PC flanged forged ball valve is engineered for tough industrial media. With its trunnion-mounted design and robust body, it minimizes leakage and withstands pressure shocks—making it a trusted choice for chemical processing, energy plants, and fluid control systems.

Valve Size: DN50 – DN600
Pressure Rating: PN16 / PN25 / PN40 / PN64 / PN100 / PN160; 150LB – 1500LB
Body Material: Stainless Steel (F304 / F316 / F316L), Carbon Steel (A105)
Ball Material: Stainless Steel
Seat Material: PTFE / RPTFE / PEEK
Connection: RF / RTJ
Operating Temperature: -29°C to 121°C
Applicable Media: Nitric acid, acetic acid, water, oil, steam

Categories: All Products, Ball Valve

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Product Technical Specifications

Model No.: Q347F
Design Standards: GB/T 12224, ASME B16.34, API 6D
Flange Connection Standards: JB/T 79.1, ASME B16.5
Face-to-Face Dimensions: GB/T 12221, ASME B16.10
Pressure Test Standards: GB/T 13927, API 598

Product Dimensions and Structure

ITEM	Ports Name	Material
1	Bolt	ASTM A193 B7
2	Nut	ASTM A194 2H
3	Body cap	ASTM A105
4	Body	ASTM A105
5	Lower stem	ASTM A82 F316
6	O-Rinng	Viton
7	Drain plug	CS+HZn
8	Gasket	GRAPHITE+SS
9	Bolt	ASTM A193 B7
10	Nut	ASTM A194 2H
11	Ball	ASTM A82 F316
12	Stand	A36
13	Seatring	RPTFE
14	Seat retainer	ASTM A105+ENP
15	O-ring	Viton
16	Spring	INCNEI X-750
17	Pressure relief plug	CS+HZn
18	Check valve	CS+HZn
19	Grease injection valve	CS+HZn
20	Self lubricating bearing	CS+PTFE
21	Stem	ASTM A182 F316
22	Spring	SS304
23	Grease injection valve	CS+Zn
24	Packing	GRAPHITE+SS
25	O-Rinng	Viton
26	Inner hexagonal bolt	ASTM A193 B7
27	Couplling plate	A105+ZN
28	Key	AISI 1045
29	Gasket	GRAPHITE+SS
30	Worm	ASTM A216 WCB
31	Bolt	ASTM A193 B7
32	Nut	ASTM A194 2H
33	Sealing cover	ASTM A105+ENP
34	Lifting lug	A36

Performance Parameters

ITEM	Nominal Diameter		Main Dimension (mm)
ITEM	inches	mm	d	O	W	K	P	B	E	F	L	n-Φd	H
10	8"	200	201	470	393.7	308	269.88	63.5	7.92	11.91	740	12-Φ38	275

What Do “Forged,” “Three-Piece” and “Trunnion-Mounted” Describe?

Each term describes a different part of the product configuration. Forged identifies the manufacturing form of the pressure-containing material. Three-piece describes the body assembly. Trunnion-mounted describes how the ball is supported.

Keeping these terms separate makes the purchase description clearer. They should not be treated as automatic proof of a particular certification, leakage class or special function. Any required feature must be listed in the project specification and confirmed for the selected model.

Why Is Ball Support Important in This Product Range?

In a trunnion-mounted design, the ball is supported rather than floating freely between the seats. The arrangement is relevant to how loads are carried within the valve and distinguishes this product from a floating ball valve.

The actual size and pressure range should be checked against the available model data. Buyers should specify the pressure class, flange standard, body material, seat requirement, medium and design conditions instead of selecting solely from the general product name.

What Should Be Prepared for Gearbox or Actuator Integration?

State whether manual, gear or automated operation is required. For an actuator, provide the project actuator type, power or control requirement and interface constraints. Request the applicable mounting drawing and operating information for the exact valve configuration.

Also check face-to-face length, overall dimensions, operating clearance and any support requirement. If the project calls for special testing, inspection records or certificates, list each item in the inquiry rather than assuming it is included.