A21 (7) (8) H fully open and slightly open threaded safety valve

NegotiableUpdate on 12/06

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Overview

A21 (7) (8) H fully open and slightly open threaded safety valve

Product Details

A21 (7) (8) H fully open and slightly open threaded safety valve

A28H-16 Fully Open Safety Valve with Handle Spring

A21H-16 Micro opening Safety Valve

A27H-16 Spring Micro opening Safety Valve

A28H 16/25/40 type fully open safety valve with handle spring, external dimensions and connection dimensions

Nominal Diameter	Dimensions (mm)
DN(mm)	do	Rc″	L	L1	G″
15	10	ZG1/2	37	62	G3/4
20	12	ZG3/4	40	65	G1
25	15	ZG1	45	72	G11/4
32	20	ZG11/4	55	85	G11/2
40	25	ZG11/2	67	100	G2
50	32	ZG2	76	112	G21/2
65	40	ZG11/2	110	135	G3
80	50	ZG3	110	145	G4

Note: It is mainly applicable to water, air, and steam with working temperatures below 200 ℃.

A21H-6C/25/40 A21W-16/25/40P A24F16/25/40 micro opening safety valve external dimensions and connection dimensions

Nominal Diameter	Dimensions (mm)
DN(mm)	Do	do	L	L1	G″
15	20	12	35	65	G5/8
20	25	16	42	76	G3/4
25	31	20	50	84	G1
32	ZG11/4	25	55	85	G11/4
40	ZG11/2	32	55	84	G11/2
50	ZG2	40	67	101	G2
65	ZG21/2	50	76	120	G21/2
80	ZG3	65	83	135	G3

Note: Working temperature: A42H type ≤ 200 ℃ A21W type ≤ 200 ℃ A21F type -40 ℃~80 ℃
Applicable medium: A21H type suitable for air, ammonia, petroleum gas, water, etc. A21W type suitable for corrosive gases or liquids A21F suitable for liquefied petroleum gas

A27H-16/25/40 A27W-16/25/40P type spring micro opening safety valve external dimensions and connection dimensions

Nominal Diameter	Dimensions (mm)
DN(mm)	do	Rc″	L	L1	G″
15	10	ZG1/2	40	60	ZG1/2
20	15	ZG3/4	45	70	ZG3/4
25	20	ZG1	50	80	ZG1
32	25	ZG11/4	55	85	ZG11/4
40	32	ZG11/2	55	84	ZG11/2
50	40	ZG2	67	101	ZG2
65	50	ZG11/2	76	120	ZG21/2
80	65	ZG3	110	135	ZG3

Note: Operating temperature: ≤ 200 ℃
Applicable medium: A27H-6C/25/40 type, suitable for water, air, and steam; A27W-16P/25P/40P type is used for corrosive media gases

A21 (7) (8) H Full opening and Micro opening Threaded Safety Valve User Ordering Reminder:

1) Please provide the main technical parameters of the safety valve product you need to order: diameter, pressure, connection method, material or working medium (according to the manufacturer's valve selection table)
2) The main sample data of A21 (7) (8) H full opening and micro opening threaded safety valve products include product drawings, assembly drawings, external dimension drawings, component material lists, connection dimensions, weight, performance specifications, standards, structural characteristics, working principles, etc. The main technical data related to valves are only for safety valve users to refer to for selection.
3) For engineering design, construction, installation, maintenance, practical application, and operation and maintenance, please refer to the A21 (7) (8) H full opening and micro opening thread safety valve user manual or CAD production drawings provided in the accompanying accessories of the manufacturer Shanghai Yongpeng. Please feel free to contact us for technical advice, selection, solutions, and factory prices.
4) Please request a free decompression password from our company and download the user manual for A21 (7) (8) H fully open and slightly open threaded safety valve