High temperature and high pressure welding gate valve-Power station valve series-电站阀厂家-上海冠环阀门制造有限公司

Product overview

The high temperature and high pressure welding gate valve adopts the pressure self-tightening type without valve cover in the middle, and has good sealing performance. The upper layer of the sealing surface is welded with drill-based cemented carbide, and the pure metal layer after processing is ≥3mm, with wear resistance, high temperature resistance, corrosion resistance, abrasion resistance and long service life. The two ends of the branch pipe are welded structures, and the welding groove can be made according to the standard or user requirements. The valve is suitable for the pipelines of high temperature and high pressure water, steam, oil and superheated steam in thermal power plant, petrochemical industry, metallurgy, etc.

Product characteristics

1, the shell adopts forging and casting two processes, the appearance is smooth;

2, special material pairing to ensure high hardness and poor hardness of sealing surface;

3, back seal design, effectively protect the sealing filler, prevent leakage;

4, high pressure water strength, high pressure gas strength, non-destructive testing and other multi-channel testing, comprehensive control of pressure parts quality;

5, the valve stem surface by precision grinding and hardening treatment, anti-abrasion corrosion, effectively reduce the opening and closing torque, easier operation;

6, the use of special corrosion inhibition filler structure design, temperature and pressure resistance, no corrosion, automatic lubrication;

7, two-way pressure seal design, to meet the harsh requirements of various special working conditions.

高温高压焊接闸阀(图1)

Main contour connection dimensions

Nominal Pressure PN（MPa）	Nominal diameter DN（mm）	Standard Value			reference value
Nominal Pressure PN（MPa）	Nominal diameter DN（mm）	L	D1	D2	H
Z462H/Y Z562H/Y PN16.0 PN20.0 P54/100V	125	600	138	172	1402
	150	650	160	200	1129
	175	750	181	223	1250
	200	800	202	250	1450
	225	850	232	278	1650
	250	950	275	330	1750
	300	1194	320	382	1950
Z462H/Y Z562H/Y PN25.0 PN32.0 P54/140V P57/170V	125	600	126	172	1402
	150	700	150	200	1408
	175	750	170	223	1650
	200	800	189	250	1650
	225	850	208	278	1750
	250	950	252	330	1850
	300	1194	305	412	2040
	350	1250	353	464	2150