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Fully Welded Ball Valves (For Heating Supply Only)

Main Technical Data:

Nominal diameter: DN25~200mm

Pressure rating: PN 10/16/25

Working temperature: ≤232℃

Connection type: flange

Driving mode: pneumatic, electric

Medium: water, oil, acid, corrosive medium etc.


Product Detail

Product Tags

Features
▪ One-piece welded ball valve, no external leakage and other phenomena.
▪ Leading domestic technology, maintenance-free and long service life.
▪ The welding process is unique, with vital pores, no blisters, high pressure and zero leakage of the valve body.
▪ Using high-quality stainless steel ball, double-layer support type sealing structure, the ball support is scientific and reasonable.
▪ The gasket is made of Teflon, nickel, graphite and other materials, and it's carbonized.
▪ The valve well has low cost and is easy to open and operate.
▪ Equipped with a grease injection port in the form of a check valve that can prevent the lubricating sealant from flowing back under high pressure.
▪ The valve is equipped with venting, draining and preventing devices according to the needs of the piping system medium.
▪ CNC production equipment, strong technical support, reasonable matching of software and hardware.
▪ Butt weld size can be designed and manufactured according to customer's request.

Fire Test: API 607. API 6FA
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Various Operation Ways
▪ Various types of valve actuators can be provided: manual, pneumatic, electric, hydraulic, pneumatic hydraulic linkage. The specific model is selected according to the valve torque.

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Material Specifications

Part Material (ASTM)
1.       Body 20#
2a.     Connection Pipe 20#
2b.     Flange A105
6a.     Butterfly Spring 60si2Mn
6b.    Back Plate A105
7a.     Seat Support Ring A105
7b.    Sealing Ring PTFE+25%C
9a.     O-ring Viton
9b.     O-ring Viton
10.     Ball 20#+HCr
11a.   Sliding Bearing 20#+PTFE
11b.   Sliding Bearing 20#+PTFE
16.      Fixed Shaft A105
17a.    O-ring Viton
17b.    O-ring Viton
22.       Stem 2Cr13
26a.     O-ring Viton
26b.    O-ring Viton
35.      Handwheel Assembly
36.      Key 45#
39.      Elastic Washer 65Mn
40.      Hex Head Bolt A193-B7
45.      Hex Screw A193-B7
51a.    Stem Joint 20#
51b.   Thread Gland 20#
52a.    Fixed Bushing 20#
52b.    Cover 20#
54a.     O-ring Viton
54b.     O-ring Viton
57.       Connecting Plate 20"

Structure

Fully Welded Fixed Ball Valve For Heating Supply (Full bore type)

Fully Welded Fixed Ball Valve For Heating Supply (Standard bore type)

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Dimensions
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Fully Welded Ball Valve With Flanged Ends (For Heating Supply Only)
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Application
▪ Centralized heating supply: output pipelines, main lines, and branch lines of large-scale heating equipment.

Installation
▪ The welding ends of all steel ball valves adopts electric welding or manual welding. Overheating of the valve chamber shall be avoided. The distance between welding ends shall not be too short to ensure that the heat generated in the welding process will not damage the sealing material.
▪ All valves shall be opened during installation.


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