Integral High Temperature Ball Valve

Name: Integral High Temperature Ball Valve
Brand: Xiangzheng

Manufactured by Xiangzheng, this Integral High Temperature Ball Valve is engineered for high-temperature working conditions including heat-conducting oil, high-temperature steam and hot oil. Featuring outstanding wear resistance and easy maintenance, it stands as the top pick for heat transfer pipelines. Contact us for quotations anytime.

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Product Description

The Integral High Temperature Ball Valve is a monoblock forged valve engineered specifically for high-temperature working conditions, widely used in thermal oil, steam and hot oil pipeline systems. Different from conventional two-piece and three-piece ball valves, this valve adopts an integral body structure with no middle split flange, which completely eliminates leakage risks caused by high-temperature thermal expansion and gasket aging.

Featuring a 90-degree quarter-turn operation, the Integral High Temperature Ball Valve opens and closes quickly with low operating torque. It provides a full straight flow path with minimal pressure loss, effectively preventing carbon deposition and blockage during long-term service. It is a direct and ideal replacement for traditional globe valves and gate valves, requiring no pipe modification for on-site installation.

Integral High Temperature Ball Valve

Main Dimensions And Connection Dimensions (Replacement Blowdown Valve) (mm)

DN	L	D	D1	D2	d	Z-Φd	H	D0
15	130	95	65	45	16	4-14	105	150
20	140	105	75	55	16	4-14	110	150
25	180	115	85	65	16	4-14	120	160
32	200	135	100	78	18	4-18	140	180
40	230	145	110	85	18	4-18	155	250
50	250	160	125	100	20	4-18	175	300

Main Dimensions And Connection Dimensions (Replacement Ball Valve) (mm)

DN	L	D	D1	D2	b	f	Z-Φd	H	L0
20	140	105	75	55	16	2	4-14	110	150
25	150	115	85	65	16	2	4-14	120	160
32	165	135	100	78	18	2	4-18	145	160
40	180	145	110	85	20	3	4-18	155	250
50	200	160	125	100	20	3	4-18	175	300
65	220	180	145	120	22	3	4-18	195	300
80	250	195	160	135	22	3	8-18	225	320
100	280	230	190	160	24	3	8-23	255	320
125	320	275	220	188	28	3	8-25	285	400
150	360	300	250	218	30	3	8-25	295	400

Main Dimensions And Connection Dimensions (Replacement Globe Valve) (mm)

DN	L	D	D1	D2	b	f	Z-Φd	H	L0
20	150	105	75	55	16	2	4-14	110	150
25	160	115	85	65	16	2	4-14	120	160
32	180	135	100	78	18	2	4-18	145	160
40	200	145	110	85	20	3	4-18	155	250
50	230	160	125	100	20	3	4-18	175	300
65	290	180	145	120	22	3	4-18	195	300
80	310	195	160	135	22	3	8-18	225	320
100	350	230	190	160	24	3	8-23	255	320
125	400	275	220	188	28	3	8-25	285	400
150	480	300	250	218	30	3	8-25	295	400

Performance Specification

Model	Nominal pressure (Mpa)	Test pressure (Mpa)		Working temperature (℃)	Applicable medium
		Intensity	Seal
QQ41M-16P	1.6	2.4	1.8	-10~300Instantaneous 350	Steam, oil products, alkali, acid medium, etc.
QQ41M-25P	2.5	4.0	2.8

Material for Main Parts

No.	Name	Cast SteelC	Stainless SteelF
1	Valve body & Plug	WCB	F304
2	Ball	WCB-Chrome Plated	F304
3	Stem	45#-Hard Chrome Plated	F304
4	Seat	Polytetrafluoroethylene — Graphite + High Elastic Rubber (Type 8202)	Polytetrafluoroethylene — Graphite + High Elastic Rubber (Type 8202)
5	Packing	Polytetrafluoroethylene — Graphite + High Elastic Rubber (Type 8202)	Polytetrafluoroethylene — Graphite + High Elastic Rubber (Type 8202)

Working Principle

The Integral High Temperature Ball Valve controls pipeline flow via a 90° rotation of a bored spherical ball plug. Its integrally cast body and high-temperature resistant graphite/PPL sealing seats adapt to hot working media.

1. Open position: The handle, pneumatic or electric actuator drives the stem and ball to rotate. The through hole of the ball aligns with the pipeline axis, allowing unobstructed medium flow with low pressure loss.

2. Closed position: Rotate the ball by 90 degrees. The solid spherical surface tightly presses against two high-temperature valve seats. The elastic heat-resistant sealing material fits closely to the ball to block medium passage and achieve tight shut-off.

3. High-temperature sealing compensation: The valve body and ball expand when heated. Flexible graphite or PPL seats provide elastic compensation to eliminate gaps caused by thermal expansion and prevent internal leakage. The seamless one-piece body eliminates split flanges to avoid external leakage at body joints. Multi-layer graphite packing and anti-blowout stem structure stop medium leakage along the valve stem.

Operation Notes

1. Only for full open / full close shut-off; throttling at partial opening is forbidden, as high-speed medium will erode high-temperature seats;

2. Warm up slowly for initial startup to prevent thermal shock leakage from sudden temperature difference;

3. Install strainer upstream if media contains solid particles to extend seat service life;

4. For long-idle valves, release pressure and heat up gently before full stroke operation to eliminate jamming risk.

Brand Promise

All products manufactured by Xiangzheng pass strict quality testing and appearance inspection, and come with a 1-year quality guarantee.

Integral High Temperature Ball Valve

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Contact Info

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Address

Workshop 101, Building 3, No. 278 Haitong Road, Xinghai Street, Longwan District, Wenzhou City, Zhejiang Province, China
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Tel

+86-577-89998609
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Email

info@xiangzhengvalve.com

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