Safety Valves & Pressure relief Valves - 2256 | Genebre | Philippopoulos s.a.

Safety Valves & Pressure relief Valves - 2256 | Genebre

Name: Safety Valves & Pressure relief Valves - 2256 | Genebre
Brand: Genebre
SKU: Safety Valves & Pressure relief Valves - 2256 | Genebre

Genebre 2256 Flanged Inlet Safety Valve

The Genebre 2256 is a spring-loaded safety valve constructed from stainless steel, designed for gas or steam service. Unlike threaded variants, this model features a flanged PN16/40 inlet per EN 1092-1 and a BSP threaded outlet per ISO 228/1.

Technical Specifications

Type: angle pattern, direct-acting safety valve
Inlet connection: Flange PN16/40, EN 1092-1
Outlet connection: BSP Gas, ISO 228/1
DN: 15 to 50
Discharge orifice: 13 to 32 mm, depending on DN
Set pressure: 0.5 to 40 barg, with sealed adjustment
Max operating pressure: 40 bar
Operating temperature: -20°C to +300°C
Body / bonnet / flange: stainless steel 1.4408 / CF8M
Seat, disc, guide, stem: AISI 316
Spring: AISI 302 up to 250°C
Seals: PTFE

Standards and Sizing

Design and testing comply with EN 12516 and EN ISO 4126-1/7. Sizing data is provided for air at 20°C and saturated steam, using a 10% overpressure calculation.

Application Selection

The 2256 is specified where a flanged inlet is required, such as steam headers, pressure vessels, process gas lines, and stainless steel skids. For temperatures above 250°C, verify spring material suitability.

Comparison with 2252 / 2253

2252 is threaded, no test lever. 2253 is threaded with test lever. 2256 is selected for flanged inlet and threaded outlet, no lever.

FAQ

Is it suitable for water?
The datasheet specifies use for gas or steam. Liquid service requires separate assessment.

Is an actuator required?
No. Operation is by process pressure and spring force.

What is checked during maintenance?
Seat cleanliness, tightness after lift, set pressure seal, outlet drainage, and backpressure from discharge piping.

Standard (Options)

Connection (Options)

Flanged
ISO 228-1

Material (Options)

1.4408

Pressure Rating (Options)

PN 16
PN 40

Pattern (Options)

Angle

Datasheet and documents

Technical Sheet

Description

Flanged end PN16/40 (inlet) acc. to EN 1092-1 and threaded end BSP acc. to ISO 228/1 (outlet). Design, calculations and control according to EN 12516 and EN 4126-1/7. Construction: Stainless steel 1.4408 (CF8M). Seat and disc in stainless steel.

AISI 316. Set pressure between 0,5 barg and 40 barg. Max. working pressure 40 bar.

Working temperature -20ºC +300ºC.

Applications: Gas or steam

Reference: 2256

Reference	Size	Minimum purchase unit	Weight (Kg)	Box / carton
2256 04 06 01	V. DE SEG. DN15 x 1" G	1	2.18	1/1
2256 04 06 02	V. DE SEG. DN15 x 1" G	1	2.18	1/1
2256 04 06 03	V. DE SEG. DN15 x 1" G	1	2.18	1/1
2256 04 06 04	V. DE SEG. DN15 x 1" G	1	2.18	1/1
2256 04 06 05	V. DE SEG. DN15 x 1" G	1	2.18	1/1
2256 04 06 06	V. DE SEG. DN15 x 1" G	1	2.18	1/1
2256 05 06 01	V. DE SEG. DN20 x 1" G	1	2.52	1/1
2256 05 06 02	V. DE SEG. DN20 x 1" G	1	2.52	1/1
2256 05 06 03	V. DE SEG. DN20 x 1" G	1	2.52	1/1
2256 05 06 04	V. DE SEG. DN20 x 1" G	1	2.52	1/1
2256 05 06 05	V. DE SEG. DN20 x 1" G	1	2.52	1/1
2256 05 06 06	V. DE SEG. DN20 x 1" G	1	2.52	1/1
2256 06 06 01	V. DE SEG. DN25 x 1" G	1	2.84	1/1
2256 06 06 02	V. DE SEG. DN25 x 1" G	1	2.84	1/1
2256 06 06 03	V. DE SEG. DN25 x 1" G	1	2.84	1/1
2256 06 06 04	V. DE SEG. DN25 x 1" G	1	2.84	1/1
2256 06 06 05	V. DE SEG. DN25 x 1" G	1	2.84	1/1
2256 06 06 06	V. DE SEG. DN25 x 1" G	1	2.84	1/1
2256 06 07 01	V. DE SEG. DN25 x 1 1/4" G	1	2.98	1/1
2256 06 07 02	V. DE SEG. DN25 x 1 1/4" G	1	2.98	1/1
2256 06 07 03	V. DE SEG. DN25 x 1 1/4" G	1	2.98	1/1
2256 06 07 04	V. DE SEG. DN25 x 1 1/4" G	1	2.98	1/1
2256 06 07 05	V. DE SEG. DN25 x 1 1/4" G	1	2.98	1/1
2256 06 07 06	V. DE SEG. DN25 x 1 1/4" G	1	2.98	1/1
2256 07 07 01	V. DE SEG. DN32 x 1 1/4" G	1	3.9	1/1
2256 07 07 02	V. DE SEG. DN32 x 1 1/4" G	1	3.9	1/1
2256 07 07 03	V. DE SEG. DN32 x 1 1/4" G	1	3.9	1/1
2256 07 07 04	V. DE SEG. DN32 x 1 1/4" G	1	3.9	1/1
2256 07 07 05	V. DE SEG. DN32 x 1 1/4" G	1	3.9	1/1
2256 07 07 06	V. DE SEG. DN32 x 1 1/4" G	1	3.9	1/1
2256 08 09 01	V. DE SEG. DN40 x 2" G	1	6.4	1/1
2256 08 09 02	V. DE SEG. DN40 x 2" G	1	6.4	1/1
2256 08 09 03	V. DE SEG. DN40 x 2" G	1	6.4	1/1
2256 08 09 04	V. DE SEG. DN40 x 2" G	1	6.4	1/1
2256 08 09 05	V. DE SEG. DN40 x 2" G	1	6.4	1/1
2256 08 09 06	V. DE SEG. DN40 x 2" G	1	6.4	1/1
2256 09 09 01	V. DE SEG. DN50 x 2" G	1	7.31	1/1
2256 09 09 02	V. DE SEG. DN50 x 2" G	1	7.31	1/1
2256 09 09 03	V. DE SEG. DN50 x 2" G	1	7.31	1/1
2256 09 09 04	V. DE SEG. DN50 x 2" G	1	7.31	1/1
2256 09 09 05	V. DE SEG. DN50 x 2" G	1	7.31	1/1
2256 09 09 06	V. DE SEG. DN50 x 2" G	1	7.31	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..