Diaphragm Valve, Metal Construction The manually operated GEMÜ 673P9 diaphragm valve has better tightness characteristics due to its unique seal system. It has a temperature resistant plastic handwheel. Bonnet housing and internals are made all of stainless steel. An integral optical position indicator and a seal adjuster to increase service life of the diaphragm are included as standard (diaphragm size 10 - diaphragm size 50). Suitable for inert and corrosive* liquid and gaseous media Chemical resistance of bonnet CIP / SIP / COP and autoclave capabilities Suitable for particulate media Valve body and diaphragm available in various materials and designs Compact design (ideal when space is at a premium) Stepless minimum flow regulation due to seal adjuster External sealing by O-rings made of silicone Hermetic separation between medium and bonnet Optional flow direction Installation for an optimized draining is possible Long service life of the diaphragm due to patented seal adjuster (US-Pat. 5 377 956) • Valve body also available in multi-port designs (M-block and T-body) or as tank bottom valve body * see information on working medium on page

Working medium Corrosive, inert, gaseous and liquid media which have no negative impact on the physical and chemical properties of the body and diaphragm material. All pressures are gauge pressures. Operating pressure values were determined with static operating pressure applied on one side of a closed valve. Sealing at the valve seat and atmospheric sealing is ensured for the given values. Information on operating pressures applied on both sides and for high purity media on request.

Technical data

Order data Body configuration Valve body material Tank bottom valve body 2/2-way body T body * For dimensions see T Valves brochure ** Dimensions and versions on request Butt weld spigots Spigots EN 10357 series B (formerly DIN 11850 series 1) (formerly DIN 11850 series 2) / DIN 11866 series A Spigot ASME BPE / DIN 11866 series C Spigots ANSI/ASME B36.19M Schedule 10s Spigots ANSI/ASME B36.19M Schedule 5s Spigots ANSI/ASME B36.19M Schedule 40s Diaphragm material PTFE/EPDM, one-piece Material complies with FDA requirements, except codes 4 and 4A Control function Code Threaded connections Cone...

1 Surface finishes of customized valve bodies may be limited in special cases. 2 Or any other finishing method that meets the Ra value (acc. to ASME BPE). 3 The smallest possible Ra finish for pipe connections with an internal pipe diameter < 6 mm is 0.38 pm. 4 When using these surfaces, the bodies are marked according to the specifications of ASME BPE. The surfaces are only available for valve bodies which are made of materials (e.g. GEMU material codes 40, 41, F4, 44) and use connections (e.g. GEMU connection codes 59, 80, 88) according to ASME BPE. 5 Not possible for GEMU connection code 59,...

Butt weld spigots, connection code 0, 16, 17, 18 Valve body material: Investment casting (code C3), forged body (code 40, F4) Pipe standard * only for investment cast design ** only for forged design MG = diaphragm size For materials see overview on page 14

* only for investment cast design ** only for forged design MG = diaphragm size For materials see overview on page 14

Butt weld spigots, connection code 35, 36, 37 Valve body material: Investment casting (code C3), forged body (code 40, F4) * only for investment cast design ** only for forged design MG = diaphragm size For materials see overview on page 14 Butt weld spigots, connection code 55, 59, 63, 64, 65 Valve body material: Investment casting (code C3), forged body (code 40, F4) Pipe standard BS 4825 Part 1 only for forged design * only for investment cast design * For materials see overview on page 14

Threaded sockets, connection code 1 Valve body material: Investment casting (code 37) MG Threaded connections, connection code 6 Valve body material: Forged body (code 40) H1 0d1

Cone spigot, connection code 6K Valve body material: Forged body (code 40)

*Material code C3, 40 FTF = 150 (no DIN length) MG = diaphragm size For materials see overview on page 14 Flanges - ANSI Class 125/150 RF, connection code 38, 39 Valve body material: GGG 40.3 (code 17, 18), investment casting (code C3), forged body (code 40) *Material code C3, 40 FTF = 150 (no DIN length) MG = diaphragm size For materials see overview on page 14

Body dimensions [mm] Clamp connections, connection code 80, 82, 88, 8A, 8E, 8P, 8T Valve body material: Forged body (code 40, F4) Pipe connection for clamp Clamp connection Clamp connection code Code 80, 88 - ASME BPE Code 8P, 8T - DIN 32676 series C EN 10357 series A (formerly DIN 11850 series 2) / DIN 11866 series A

Availability of material code 42, F4: same as code 40 MG = diaphragm size X = Standard, K = Connections completely machined (not welded), W = Welded construction Availability of material code 42, F4: same as code 40 MG = diaphragm size For further metal diaphragm valves, accessories and other products, please see our Product Range catalogue and Price List. Contact GEMU. .##»# VALVES, MEASUREMENT GEMU Gebr. Muller ■ Apparatebau GmbH & Co. KG ■ Fritz-Muller-Str. 6-8 ■ D-74653 Ingelfingen-Criesbach ■ Tel. +49(0)7940/123-0 ■ Telefax +49(0)7940/123-224 Subject to alteration ■ 02/2024 ■ 88427455 Should...