Piston Check Valve Type class 800 Piston type and S.W ends - 2234S | Genebre

Name: Piston Check Valve Type class 800 Piston type and S.W ends - 2234S ...
Brand: Genebre
SKU: Piston Check Valve Type class 800 Piston type and S.W ends - 2234S | Genebre

Genebre 2234S – Piston Check Valve Class 800 SW

The Genebre 2234S is a forged piston check valve, Class 800, with Socket Weld ends per ANSI B16.11. Designed for high-pressure, small-diameter pipelines where welded connections are preferred over threaded joints for mechanical strength and reduced leakage risk at the ends.

Construction

Design: EN ISO 15761 / API 602
Body and cover: Forged carbon steel ASTM A105N
Seat: Stellite hardened
Piston: Stainless steel ASTM A182 F6a
Trim: #8 / XU
Spring: SS304
Body gasket: SS304 + graphite
Cover bolts: ASTM A193 Gr. B7
Cover: Bolted

Operating Limits & Sizes

Maximum working pressure: 140 bar. Temperature range: -29°C to +420°C. Available sizes: 1/2" to 2". Kv values: 1.04 to 14.7 m³/h depending on size. Opening pressure: 37 to 75 mbar, size-dependent.

Applications

Suitable for steam, condensate, water, thermal fluids, oils, and compatible industrial media, provided compatibility with A105N, F6a, Stellite, and graphite is verified. Not recommended for slurries or fluids with solids, as particles may accumulate on the seat and cause leakage.

Socket Weld Installation

Valve is not disassembled prior to welding. TIG or MIG welding by certified personnel is recommended. Cooling should be applied to avoid overheating the body. Piping must be free of debris and weld residues. Valve should not be subjected to pipe stresses or misalignment.

FAQ

What is the difference from 2234N?
2234S has Socket Weld ends; 2234N has NPT threaded ends.

Is an actuator required?
No. The piston opens by differential pressure and closes via spring return.

Is it repairable?
Manual states repair is generally not cost-effective; replacement is recommended.

Standard (Options)

Connection (Options)

Socket Weld

Material (Options)

ASTM A105N

Pressure Rating (Options)

PN 140

Seat (Options)

Stellite

Datasheet and documents

Description

Body and cover made of forged steel ASTM A105N.

Seat material: stainless steel stellited.

Piston: ASTM A182 F6a (trim #8/XU).

Bolted cover. Socket Weld ends.

Reference: 2234S

Reference	Size	Minimum purchase unit	Weight (Kg)	Box / carton
2234S 04	CHECK VALVE CLASS 800 SW 1/2"	1	1.52	1/1
2234S 05	CHECK VALVE CLASS 800 SW 3/4"	1	1.653	1/1
2234S 06	CHECK VALVE CLASS 800 SW 1"	1	2.84	1/1
2234S 07	CHECK VALVE CLASS 800 SW 1 1/4	1	4.174	1/1
2234S 08	CHECK VALVE CLASS 800 SW 1 1/2	1	6.295	1/1
2234S 09	CHECK VALVE CLASS 800 SW 2"	1	9.74	1/1

Certificates

GENEBRE, S.A. has implemented a quality management system to control the designing and manufacturing of fluid control valves, as well as the distribution of home and public taps.

This system complies with the requirements of the current international UNE-EN-ISO 9001:2015, certified by the prestigious German certification organization TÜV Rheinland.

In 2000, GENEBRE began to comply with the European Business Excellence Model, more commonly known as the EFQM. As a result, in 2003, the Catalan Regional Government awarded us with the Quality Award. This new system enables us to ensure the quality of GENEBRE's products and also to offer added value to our clients.

In 2012, we obtained the certification for the Environmental Management System. This system is certified according to the UNE-EN-ISO 14001:2015, also by TÜV Rheinland. GENEBRE QUALITY AND ENVIRONMENTAL POLICY

	AENOR - Homologación y Marcado N de AENOR para la línea de válvulas de gas.
	OLIVER RODÉS Water Quality - Certificados de agua potable, confirmando el cumplimiento de los criterios sanitarios de la calidad del agua para el conusmo humano RD 140/2003 de 07 de febrero (legislación española) y Directiva (UE) 2020/2184 del Parlamento Europeo y del Consejo de 16 de diciembre de 2020, relativa a la calidad de las aguas destinadas al consumo humano por el Laboratorio Oliver Rodés.
	HOMOLOGACIÓN CE - Homologación CE y otras específicas para mercados como Bielorrusia, Chile, Polonia, Rusia, Ucrania, Singapur y Arabia Saudí.
	NORMA UNE-EN-ISO 9001 - Este sistema está certificado de acuerdo a la norma UNE-EN-ISO 9001: 2015, por parte del prestigioso organismo certificador alemán TÜV Rheinland..